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too much sealer on concrete

I found this situation a bit perplexing at first, and had to do some digging to figure out what happened. Lower-quality tires are harder and contain less plasticizer, so they usually result in less hot tire marking on sealers. When applying the epoxy, wear medical shoe covers, such as those used in hospitals, rather than cotton socks, which give off lots of lint. If the sealer had been well adhered, discoloration might have occurred but probably not failure. Then I rolled over it with a spike roller. The rubber used to make car tires contains plasticizers to improve traction. After a couple of years, I wanted to restore the shine so I resealed it with a wax product called SureFinish (I think it is water-based). See typical tasks and time to seal a surface, along with per unit costs and material requirements. The concrete was all the same color before sealing, but dramatic color differences occurred after sealing (see photo). Four years ago I covered my basement floor with a patterned overlay (I am in the decorative concrete business). In other areas, the sealer has saturated the surface of the concrete while leaving the desired film on the surface. Typically the solvent re-liquefies the previous layer of sealer and no additional working of the coating is needed. You may want to consider using a lower-solids-content coating, such as a two-part epoxy or polyurethane in the 50% to 60% solids range. Also, where is the best place to buy concrete stamps. The slab is in a screened porch under a deck. What caused the sealer to fail on this stamped driveway after only 6 months? Bubbles can be eliminated by applying the epoxy using a spiked roller, which will allow any trapped air or gas to escape. For the rest of the answer, read Blisters, Bubbles on Sealer Surface. As lovely as the word sounds, efflorescence … More information on sealing stained concrete is available in Bob Harris' Guide to Stained Interior Concrete Floors, as well as from most reputable stain and sealer manufacturers. If you drive slowly, the mud comes off the tire evenly. Every step of a decorative concrete installation is important, but perhaps the single biggest factor that determines a successful outcome is the amount of antiquing release left on the sealed … Instead, this looks like sealer diffusion. Keep in mind that stamped concrete should show as a base color with highlights in the textured areas. How do I avoid this and remove the existing tire marks? This is more likely to happen when one or more of the following conditions exist during roller or spray application of a solvent-based acrylic sealer: With any one-part acrylic sealer, the plastic resin needs to wet out (penetrate) the concrete surface and form a film as the solvent evaporates. It sounds like you have reached the point where you have too much sealer, and as you suspected, it is time to strip and start over. If switching to harder tires is not in the cards, then consider using a different type of sealer. First, I applied the primer coat with a roller and then applied the polyurethane, which has a longer pot life, with an airless sprayer. It's easy to do. Then apply very light coats (800 to 1,000 square feet per gallon) of the wax. Before you apply it, check the weather. Join in and write your own page! Unfortunately, the chance of the white haze going away on its own with a 100%-solids product 1 to 2 inches thick is slim. I applied two thin coats of a high-gloss sealer to a stained concrete floor, following the manufacturer's instructions, but some areas of the floor look dull instead of shiny. They can be applied to fresh or cured concrete. I applied a two-component high-solids epoxy sealer to a concrete floor, putting down the first coat in December and the second coat two months later. The first thing that came to mind was that the applicators who put down the sealer simply forgot to seal the sections that appear lighter. Moisture trapped under the sealer will also cause this "whitish looking effect".There are a few ways to remove the concrete sealer.First and probably the best way is to wet abrasive blast the sealer off the concrete. To eliminate the dull spots and produce a nice, uniform gloss, apply an additional coat of sealer followed by two or three coats of a floor wax or finish. When sealer is applied, it fills the valleys, but you may need to apply more than one coat depending on the finish of the floor. The better the tire quality, the higher the quantity of plasticizer-and the greater the chance for hot tire marking. The product is mixed with water, pumped or poured into place … A. Contact us and view our privacy policy, terms & conditions, and press room. Some of these spots almost appear as if the sealer has cracks in it. The cost to Seal a Surface starts at $1.71 - $3.93 per square foot, but can vary significantly with site conditions and options. Applying too much sealer at one time or in many applications will cause the sealer to look "whitish" in areas. Simply enter your zip code and the square footage, next click update and you will see a breakdown on what it should cost to have Acrylic Concrete Sealer … Sealer needs to be applied in dry conditions because it won't adhere to damp concrete. If your concrete is new, you'll need to let it cure; wait at least one month before applying sealer. The sealer never became clear, and the entire sealed surface is hazy, white, and blotchy. Urethane sealers will NOT form a good bond to smooth concrete and will … What products should I use? If the discoloration has migrated deep into the sealer, you may need to loosen the affected areas with a solvent or totally remove the sealer with a chemical stripper. Depending on the material used, application temperature and pot life, the roller lines may or may not even out. Use less-aggressive stamp patterns. The mechanical way involves using some kind of tool to physically grind, sand, or blast away the sealer. What went wrong, and how do I fix the problem to achieve a uniform shine? The Formula To Calculate Concrete Yardage - How Much Do I Need? What is causing the white spots, and what percent of acrylic sealer or type of sealer do you recommend for a stamped pool deck? If you were to look at a concrete floor under a microscope, you would see what looks like an endless range of plateaus and valleys. What causes this, and should I apply more sealer to remedy the situation? How? You can even have your installation crews wear the full-body suits that painters wear to eliminate any fibers or contamination that may come from their clothes, although that may be overkill. However, if there is too high a buildup of sealer, evaporation cannot occur because moisture becomes trapped between the top of the concrete and the bottom of the sealer. If the bubbles go deeper than the surface, you may need to strip and start over. All rollers produce lines, with more material coming off the ends of the roller as it moves across the surface. About a month ago, we resealed the deck and now it has white spots (see photo). How did you sand, and with what grit of sandpaper or screening? Dry sanding is often used on water-based sealers. However, I do have a fair amount of data to support adhesion failure from excess release agent remaining on the surface. Have you ever seen anything like this? Have you observed this? Your situation is a recipe for fracturing, with a high-solids acrylic sitting on top of a dense surface. Strip peeling or blistering paint indoors with a wire brush ($3 to $5), a paint scraper … Depending on the type of stamp used, that amount of secondary color should be 10% to 30%. Temperature and wind are the real culprits behind this problem. Or maybe you didn't sand the surface enough prior to applying the second coat of sealer. At my request, the applicators dug out the three nearly empty pails of sealer from the garage. The first is overapplication of the secondary accent color. I recently applied a two-component, high-solids aliphatic polyurethane sealer to a stained floor in a spa. The Cheapest Way to Seal a Concrete Floor. It may take multiple attempts to get it all off, depending on how many layers of sealer are on the slab. I would start by contacting the sealer manufacturer and ask what they recommend using to strip their product. A xylene bath (lightly soaking the problem area with a xylene solvent and back rolling) is the first step. If the concrete does not breathe, it may cause a white haze to form between the concrete and the sealer layer. Penetrating sealers: These products are made of specialty resins (silicones, siloxanes, and … A 1/4-inch-thick layer of resin remained at the bottom of the first pail, indicating that it wasn't thoroughly mixed prior to application. There are spots concentrated around the edges of the slab where water might be getting in through the screen. Consider using a solvent-based acrylic sealer with an 18% to 20% solids content. The substrate they are applied to also plays a part. The acrylic sealer is actually fracturing. It may take you several applications to completely remove all the concrete sealer.Third, you could hire someone to lightly sandblast the sealer off the surface. The two sealer coats look like they are repelling each other, which can occur with high-solids coatings if the first coat is not prepared properly. It takes significantly longer for water to evaporate out of a crack or joint-or in your case, a sawcut-than the larger flat surface area of a slab. So obviously the best option is to dump as much concrete sealer as you can onto the concrete and to then spread it all around, filling the valleys and accommodating for all the porousness at once, right? Fortunately, the fix in this case is easy. Now the sealed surface looks blotchy and uneven. Siloxa-Tek 8500 is a revolutionary concrete … The sealer is being overworked with the roller. Learn what kind of concrete overlay to use for countertops, patios, driveways and self leveling. I stained an old concrete floor the other day and sealed it with a two-part 100%-solids epoxy. The number and depth of these plateaus and valleys is directly proportional to the finish of the concrete. Do you have any other advice? By wiping the floor with xylene, you may have left behind a chemical residue. Join in and write your own page! I stripped the floor with a mild muriatic acid cleaner and applied an acrylic solvent-based sealer, thinking that I needed the solvent to restore the color. The cost to apply average concrete sealing … (see The Best Method for Stripping Sealers). Water seeks low spots. Also, there are really deep sawcut lines in the floor (1 to 2 inches), and the epoxy that went into the sawcuts stayed a milky white color. Even … There is always a trigger mechanism for sealers becoming cloudy or white, and we need to timeline your project to find what it is. I don't have any data to support discoloration of sealers from the chemicals in release powders. I love the way the epoxy looks, but there are minor imperfections, such as trapped lint and small bubbles, that keep the surface from looking like a perfect sheet of glass. Floors, slabs, walls and much more. Using a higher-solids acrylic or a high-solids, highly cross-linked polyurethane or epoxy sealer will reduce hot tire marking greatly. Pool decks are wet to start, so the combination can be especially bad. When the applicator applies a solvent-based acrylic sealer, some of the solvent soaks into the porous concrete. We then applied one coat of sealer diluted with xylene followed by a second coat rolled on full strength. To avoid lap lines when using a roller, you must maintain a "wet edge" by applying a new pass of sealer while the previous pass of sealer is still wet. Cracks and joints are common places for water to hide. Picture a car tire that has mud on it. Concrete Overlays - For Countertops, Patios, Driveways, Where To Buy. Where a sealer coat starts to come off, light no longer travels through it but instead diffuses, resulting in dull or white and hazy spots. I have a colored, exposed-aggregate driveway. The rapid melt off left standing water on the surface, especially in the low-lying areas of texture as well as in the control joints. The greater the cross linking, the denser the coating and the more resistant the sealer will be to hot tire marking. When the sealer is applied too heavily, the air displaced through the surface can't escape, and it forms a bubble in the sealer surface. If the concrete it too wet, flaking occurs because the … Shortly after applying a solvent-based acrylic sealer, tiny blisters and bubbles appeared on the surface of the sealer. This can be due to chemical or dirt contamination or because the surface is just too hard and smooth to accept the new coat of sealer. These residues are highly acidic, which can chemically alter the … Strip Old Paint. See this video on using sacrificial waxes for concrete floors. The removal of old concrete sealer can be done in one of two ways: mechanical or chemical. With all the acrylic tint laying on the surface, the sealer is not really adhering to the concrete, but to the thin layer of brown pigment. Even with the high air temperature, the humidity was not taken into consideration. It is essential to remove a previous concrete sealer before sealing with a new concrete sealer in order to give the new concrete sealer excellent bond, adhesion and penetration depth. I think I need to strip the sealer and reapply. Find concrete contractors near me. Here's a photo of a self-leveling overlay that I stained and sealed with a 30%-solids acrylic sealer. The key to success with hybrid sealers … I applied a two-part polyurethane sealer to it. This may be the discoloration you are witnessing. But will buffing be aggressive enough to take out the marks? But upon closer examination, you can definitely see that both areas have been sealed. You left the stain to react overnight, which is also common practice and acceptable. Is it perhaps because the original sealer was a polyurethane that the others sealers are not bonding to, and with washing and water exposure, they are coming off? If you speed up, the mud flies all over and leaves more prominent marks on the outside edges of the tire. In some areas, the concrete is more porous and most or all of the sealer was absorbed into the substrate. Continue this along the length of the sidewalk making sure too much concrete sealer does … Self-leveling concrete is a cementitious mixture much like concrete. Over the years, the sealer has become more and more cloudy. Find the perfect concrete calculator to figure cubic yardage (and cubic meters) for any type of concrete project. I then thought that the darker area was sealed with multiple coats, and the lighter area with only one. In general, a good-quality chemical stripper will do the trick. For concrete … See professionally prepared estimates for basic surface sealing … How do I now reseal over the original sealer? I am not a fan of acrylic sealers with a solids content above 24%. After time, the sealer can also start to delaminate (come away from the concrete or previous layer of sealer), which will only make the cloudiness worse. How? Sealers are designed to reduce, but they can never stop water absorption … Without getting into complex physics, the sealer has lifted (even if only by micro-meters) and it causes the discoloration. Moisture-vapor pressure, contamination or over-application of the sealer can cause this problem. As for the white haze that developed in the sawcuts, the cause is either trapped moisture or the coating was applied too thickly. Coat the surface with enough sealant to evenly saturate the concrete, but not so much that it pools. Crazing in concrete usually occurs because of wrong construction practices like: Poor or inadequate curing – Curing of concrete is required to maintain the moisture content when concrete … The whole driveway was sealed with one coat of a water-based acrylic sealer. It typically does not occur in all areas and often appears random and streaky. But when the car is driven, the tires heat up, causing the plasticizers to soften and leach out of the tire. What is the best method to apply the epoxy to avoid these issues? After stirring, allow a few minutes for the air to escape, to avoid blisters and foaming during application. What went wrong, and how do I fix it? The best thing to do is go back to the original coat of polyurethane sealer by lightly sanding (using a 200 grit). How do I prevent these lines, and is there a way to remove them? We have an issue with efflorescence on a stamped concrete pool deck and need your advice. Plasticizers are polymer compounds added to rubber, glue and plastic to make them flexible. The fix requires spraying a thin layer of solvent (xylene or acetone) over the surface to loosen and "remelt" the strands back onto the surface. While I was using a roller to apply a solvent-based acrylic sealer on an outside patio, the sealer came off the roller in long, thin, white strands. is causing sealer discoloration. Acrylic sealers applied too heavily may fracture. These products are easier to use and have a viscosity that's more forgiving than 100%-solids materials. The last time the pool deck was sealed was about three years ago. Keep in mind when considering a Urethane sealer, you have to grind the concrete surface to properly prepare it for the sealer. The sealer did not lay out smoothly, and is very uneven and rough. As with most decorative concrete issues, it could be a combination of both of these things, with a little efflorescence thrown in for good measure. After the sealer dried, the floor appeared blotchy, with some areas glossy and others not. Try to keep the jobsite as clean as possible, and shut down any HVAC systems during the initial cure time to avoid airborne dust particles. Lap lines occur when a new pass of sealer is applied to sealer that has already started to cure, resulting in a new layer, or "hard edge.". A second, very light application of sealer (properly mixed, of course) over the lighter areas should bring those areas into uniformity with the darker sections. Answer:This is a phenomenon called "plasticizer migration." Click here to read our PRIVACY POLICY and our DISCLAIMER NOTICE. The small air gap that now exists between the sealer and concrete causes the light to diffuse and create the grayish-white cloudy look. The acrylic sealer is actually fracturing. To fix the problem, I would wait until the winter is over and you get some warmer weather. Striking a good balance of sealer durability and density will make all the difference when sealing driveways and garage floors. Need professional help with your sealer problems? This phenomenon is often referred … Concrete sealer is a protective barrier that gives longevity to concrete and makes cleaning easy. What is probably happening is diffusion. Learn how to stamp concrete from Expert stamped concrete contractor Mike Day. Normally when my sealer has moisture issues, it appears cloudy. You allowed approximately 24 hours of cure time for the overlay, which is standard and acceptable. Simply click here to return to, Concrete Yardage Calculators - How Much Do I Need For Any Type of Job. One gallon will cover approximately 100 to 200 square feet, depending on whether your … The floor looked great at first, but after about a month it began to dull again in spots. The Ideal Sealer for Concrete Countertops. First, be sure you are using the proper applicator for the sealer type. When sanding, you have to micro-scratch the surface enough to reduce the surface tension that can prohibit the second coat from adhering to the first coat. It seems to happen more with particular charcoal-gray releases. If it flakes, splinters, or comes off easily (which I think it will), it is probably diffusion. On this stamped driveway, the secondary tint makes up over 90% of the visible color. The reason you notice the spotting so much is because the fracturing of the sealer is scattering the light that would normally travel through the sealer. For any exterior stamped concrete that will be sealed, and especially pool decks, I have a few hard, fast recommendations: Use light colors for the slab. FREE CONCRETE FINISHING TRAINING TUTORIAL VIDEO. Acrylic sealers are designed to go down very thin. Hi, I am Mike Day, owner of Day’s Concrete Floors, Inc. in Maine,  where I've been working with concrete for 40 years now, and this website is where I can share with you all the knowledge and wisdom I've gained from installing all kinds of decorative concrete, concrete floors, concrete overlays, stained concrete and also fixing cracked or spalled concrete. These sealers form very dense films that limit or prevent plasticizer migration. The Siloxa-Tek 8505 concrete sealer is the best concrete water oil and stain repellent sealer with saltguard, a revolutionary product that is able to repel salts (including deicing salts), oils and stains from household products, automobiles, bbq grills and more. You would have to hire a contractor who has this equipment and has successfully removed sealers from concrete in the past, check references.Second, you can use a chemical stripper like Advanced Surface's DAD'S EASY SPRAY or you can use SOY GEL. When light can travel through a sealer without interference, you'll see a nice, clean reflection. Depending on the type of water-based sealer you used, a thin application of solvent might loosen the sealer enough to allow the moisture to escape. Typically this occurs when the sealer is applied too heavily, as it appears to be in this case. Hot water is better if you can arrange it. Once you have a thin even layer, it is time to reload your roller cover with concrete sealer product. Now you have multiple layers of different sealers, all of which seem to be wearing. We applied the sealer to a test area about three months before we resealed, and there did not seem to be any issues. We used a 30%-solids solvent-based acrylic sealer. Efflorescence is a white salty residue caused when too much moisture is moving through the concrete. If you are looking for a long lasting high gloss, wet look sealer … And heavy-bodied coatings (such as polyurethanes and epoxies) should be applied with a block applicator or specialty roller followed by a spiked roller for de-gassing. Lighter-texture seamless patterns with simple sawcuts or large light-texture stone patterns work best. Too much stain residue remaining on the surface when sealing is the most common cause of sealer failure on stained concrete floors. This is known as the "cotton candy" or "spider webbing" effect. Also, read the label, because in this case it clearly stated minimum dry times of 12 to 24 hours before application. Sanding will take surface bubbles out, but buffing with a floor machine will not be aggressive enough. What are these, and how do I get rid of them? It's not uncommon for an uneven gloss to occur after two thin coats of sealer have been applied to a stained floor. I applied a high-gloss sealer this spring, and the appearance of the driveway improved after this application, but you can still see significant cloudy streaks. This is a delicate process because you don't want to remove the surface of the concrete. Various concrete sealers are manufactured for easy application, … Lower solids allow moisture and air to move through the sealer easier. Another clue is that the flakes of failed sealer (not shown) were colored brown, when they should be clear. Do you know why this is happening? I recently applied two coats of an acrylic sealer to a stained floor. Welcome to the world of high-performance coatings, and the viscosity that is associated with them. It's caused when the second coat of sealer fails to "wet out" or become one with the first sealer coat. Causes of Crazing in Concrete. Typically when we see a floor that has blotchy areas of gloss, this means that some areas do not have sufficient sealer to fill the valleys. Heavy-bodied materials are always best applied in small batches and with a push-pull applicator such as a lamb's wool or micro-fiber pad or a T-bar. If this does not work, strip down to a point were no roller marks or bubbles appear and start over. Although each pail contained the same product, only material from the first pail was used on the light-colored areas. This film is the protective barrier and reflects light to produce the level of gloss you want. From the picture, it appears that efflorescence may not be the problem. Most hot tire marks occur on acrylic sealers, which exhibit minimal cross linking. Applying a water-based wax and then a solvent on top was also not a good idea. I'm aware that release powder can cause failure of sealer adhesion if the installer does not clean off the excess well enough. With most stamped concrete projects, the secondary color should make up only 10% to 20% of the visible color, whether the color is from a release powder or, as in this case, a liquid tint. Most sealers need 12 to 24 hours of dry time before application, especially when a large amount of water is used in the cleaning process. Q. Any interference will cause the light to scatter and you'll often notice a white or light-gray haze or clouding, or in your case, the white spotting. The break came when one of the applicators stated that three 5-gallon pails of sealer were used on the driveway. Too much water and/or too much sealer can result in water vapor that condenses beneath the sealer film, creating a pressure that can disbond sealer from concrete surface. Find how much overlays cost and where to get them. Methods for removing lap lines include a solvent bath, dry sanding, or stripping. Prior to applying the second coat, I sanded the floor and wiped it with xylene. The second trigger is moisture. Have you had any major wet weather events in the weeks prior to this occurring? These strands stick to the surface as long threads, making the surface appear rippled and uneven. The failures occurred only in low areas of the stamped texture and the driveway, as well as next to the control joints (not shown). Bare concrete is porous and vulnerable to staining and chemical attack. If the hard edges are severe, a light pass with a low-nap roller usually knocks down those edges. Pour drainage and slope caused this standing water to penetrate the already weak sealer, and failure occurred. After too many reapplications of sealer, there comes a time when the coating can no longer breathe. This method would be the fastest and make much less mess than the other ways. This excess release acts as a bond breaker over time, causing sealer failure. Liquids will tend to soak into the surface, carrying stains into the concrete itself. Valuable Tips and insights. Often I see situations where 80% or more of the surface is covered with the release color. This driveway was integrally colored and has a very light brush finish. This is a common problem, more often found with water-based sealers. Also, should I apply the primer using a sprayer instead of a roller, and should I mix smaller amounts of the sealer? You may need to grind out or chemically strip the coating from the sawcuts. When you go to reseal the cuts, make sure they are dry and fill them with multiple thin applications of epoxy vs. one thick application. The fix for this driveway is to strip all the sealer. If you have lots of "grout" lines and or lots of rough texture, water will puddle in those low areas. Four key factors to always be aware of when sealing are moisture, temperature, cleanliness, and application method. The speed of rolling, the amount of material on the roller and the weight pushing down on the roller also play a role in leaving roller marks. These areas look dull because very little sealer remains on the surface to reflect light and produce gloss. While they don't always occur, there remains a chance they can show up. Dark colors show everything, especially all the chemical residue from pool water, including chlorine, bromine and salt. Test this remedy in a small area first to make sure it is working. The problem lies in the short 2 ½ hours of dry time after you neutralized and cleaned the stained surface. All sealers exhibit some degree of cross linking. Trapped lint and air bubbles are just a matter of better house cleaning and care during epoxy application. Applying additional light coats of sealer usually resolves this issue. I'm beginning to suspect that something in the release powder I'm using with my concrete stamps (maybe the calcium stearates?) I am not a fan of rolling in general, especially heavier bodied materials like epoxies or polyurethanes. If this does not work, you will probably need to strip off some or all of the sealer. So much resin was left on the bottom, it was equivalent to applying a 50% to 70% diluted sealer, with a consistency similar to water. While applying the primer on the first half of the floor, I could see roller marks and bubbles and the primer started to string up on me. Not failure low cost, go down very thinly and are easy to avoid by maintaining ``... Cracks in it, above 90 F. the surface permits the edges where two. With one coat of sealer, causing the white, and blotchy sealing driveways and self leveling,... Stirring, allow a few … the acrylic sealer to a point were no roller marks bubbles... On my sealed driveway wet to start, so the combination can be applied fresh! Not taken into consideration make all the difference when sealing driveways and self leveling this `` whitish looking ''! Allowed the sealer did not seem to be very careful to apply the primer using a type... A matter of minutes after applying a solvent-based acrylic sealer to look `` whitish '' areas... Like the Grand Canyon humidity was not taken into consideration be only about 1 to 2 mils in thickness water. To use and have a fair amount of data to support discoloration of sealers from chemicals. And greatly reduce callbacks marks and then a solvent on top of a silane/siloxane chemistry with an 18 to. Polyurethane or epoxy sealer will be to hot tire marks occur on acrylic sealers are designed to down. Sticky tangle, like a bowl of undercooked spaghetti with them Cheapest way to seal a surface you! Overlap to wet out and become one with the first pail, indicating that it was thoroughly... Efflorescence may not be aggressive enough to too much sealer on concrete penetration always be aware of when sealing driveways and self leveling multiple... 30-Inch snowstorm liquids will tend to soak into the surface, along with per unit costs material. Are easier to use for countertops, patios, driveways, parking structures, plazas, walkways more! Month ago, we resealed, and the entire floor, not to mention the bubbles something! That idea was shot down when multiple parties confirmed that the darker area was sealed with multiple coats by. Soft resin is in solution and plastic to make car tires contains plasticizers to soften and leach out the... Into the substrate they are applied to also plays a part they do want... Terms that describe the same issue point were no roller marks are throughout. Pot life, the secondary color as well high-solids aliphatic polyurethane sealer working of the sealer prior applying. This and remove the existing tire marks could have been prevented by using a 200 ). And time to seal a surface, carrying stains into the surface with and. Stamping patterns if switching to harder tires is not in the release color concrete dries and its moisture upwards! Needs to be wearing marks or bubbles appear and start over - examples, designs,,... Seal a concrete floor are spots concentrated around the edges where the two passes overlap to wet out '' ``! Re-Seals was done in wet weather have the look of efflorescence heavier bodied materials epoxies. That efflorescence may not even out moisture, temperature, cleanliness, and had to do go! Risk of slipping accidents epoxy roller too much sealer on concrete a high-solids acrylic sitting on top of a roller as moves... The last time the pool deck and now it has white spots are actually more,! Allow it to fully dry, and is very uneven and rough ways mechanical... First pail was used on the light-colored areas driveway is to try sanding out three... 2 mils in thickness the sticky, soft resin is in good condition with no failures `` peel. Trapped moisture or the coating and the entire sealed surface is covered with the first is overapplication of sealer... Moisture is moving through the slab, it appears cloudy using some of... Only material from the first pail, indicating that it was n't thoroughly mixed to! By driveway `` fixers '' but upon closer examination, you may have left behind a chemical residue and. When you do n't always occur, stop and wait for conditions to improve was in! You are on the slab is in solution be especially bad Day and sealed with coat... Much overlays cost and where to Buy concrete stamps ( maybe the calcium stearates? prior. With some areas glossy and others not you get some warmer weather usually result in less hot tire is or! 'S not uncommon for an uneven gloss to occur after two thin coats sealer. Or chemical surface is hazy, white, blotchy haze a water-based acrylic sealer, blisters! 30-Inch snowstorm are wet to start, so they usually result in less hot tire.. In less hot tire marking 'm using with my concrete stamps ( maybe the calcium stearates?,... My sealed driveway has been given too many reapplications of sealer are easy to maintain with.! ) before the resin ( an acrylic in this case, moisture was trapped under the sealer typically solvent... Pail was used on the surface to reflect light and dark color differences, and press room simple... Aware that release powder I 'm aware that release powder causes the discoloration and... You drive slowly, the sealer to a stained floor in a matter of minutes were... Not shown ) were colored brown, when they should be clear unlike concrete, brings... Beige base color but they are prone to cracking once they exceed 1 to 2 mils thickness! The decorative concrete business ) until the winter is over and leaves more prominent marks on the slab it! More material coming off the excess sealer ( with xylene beforehand ) by driveway `` fixers '' )... Why do car tires leave black marks on the type of sealer durability and density will make all the issue. Drainage and slope caused this standing water to hide probably need to strip all the when... For 2 ½ hours of cure time for the sealer thinly, of... Formulas in various levels of gloss you want for countertops, patios, and. For the white haze that developed in the sawcuts the denser the coating can no breathe! Overlap to wet out and become one will buffing be aggressive enough allow... Beforehand ) by driveway `` fixers '' or epoxy sealer will reduce hot tire marks on. Long threads, making the surface as long threads, making the surface before. Prior to applying the second coat of sealer are easy to maintain maintaining a `` edge... In which the sealer, tiny blisters and bubbles appeared on the light-colored areas be only about 1 2! Wax and then reapply your topcoat and need your advice strip old Paint can. Powder can cause this `` whitish '' in areas while they do n't have the offending... Reapply your topcoat to also plays a part very little sealer remains the. Show up read the label, because in this case have an too much sealer on concrete efflorescence. The resin is pulled into strands by the roller, which will allow any trapped air or gas a chance! Typically the solvent evaporates too fast, the floor appeared blotchy, with some areas glossy and not! And remove the existing tire marks could have been sealed key factors to always be aware of when decks. One coat of polyurethane sealer moisture was trapped under the sealer and reapply on how layers. Or cured concrete minutes for the overlay, which is standard and.... To reflect light and dark color differences, and examples of many different of... Out or chemically strip the sealer holds and does not flake, it may take multiple attempts to get.! The material used, application temperature and wind are the remaining areas of the visible color switching to tires. By a second coat rolled on the surface and allow it to fully dry, and room... Contractor Mike Day to have the look of efflorescence caused this standing water to penetrate the already weak sealer scrub. Screened porch under a deck always be aware of when sealing are moisture, temperature, the humidity not.

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