The house that had the antique gray applied has no issues at all. (it was the summer in California) We used two different colors on each, one was antique gray and the other dark chocolate. Thanks for the question. Thanks for the question. I don’t want to make the same mistake with my porch and walkway. Assuming I do not want to replace the slab, can I replace the epoxy with any kind of finish that can withstand the moisture? We had a very hot, dry summer but trenched all the way around the house to make sure that wasn’t the issue. Hi, Good luck. the sealer dried for well over 24 hours and we did 2 coats. Hope this helps you before you waste time and additional money or things you don't need. We have an undercover concrete patio from the 1980s that was covered with outdoor carpet until 3 years ago. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. Thank you for the question. They should be able to give you guidance on a product that might be the most effective in your situation. Jason – it appears you have no shortage of problems! It is recommended to wait at least 24-48 hours after rain and pressure washing before sealing. If the RH is too high for the finish’s tolerance, the finish may not live up to the expected visual and/or performance expectations. Will it ever turn all white? Keep the patching material roughly level with the surrounding concrete. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/0\/05\/Fill-Concrete-Holes-Step-1.jpg\/v4-460px-Fill-Concrete-Holes-Step-1.jpg","bigUrl":"\/images\/thumb\/0\/05\/Fill-Concrete-Holes-Step-1.jpg\/aid11535461-v4-728px-Fill-Concrete-Holes-Step-1.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"

\u00a9 2021 wikiHow, Inc. All rights reserved. They eliminate tough stains, dirt, or debris that can weaken the new patch. I would be trying to find the appropriate solution for this symptom. Can be exposed to water after only 2 hours without washing it out. I would find a supply house in your area that specializes in decorative concrete and explain the situation to them. Thank you in advance for your response. It can leave a white powdery substance on the concrete’s surface after staining but before sealing. Thanks for the question. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. It also seems to scratch easily. The house in about 3 years old, I’ve lived here for about 8 months and I believe they are going to try to charge me for the floors because I was told that they didn’t have this problem when they lived here and the previous tenant did not either. Conducting a moisture test beforehand is the only way to determine if the concrete is ready to be finished. i got gutters put on the house and also had the roof inspected and the crack outside the door resealed. When we waited the 10 days prior to lift off the cover tarp, we saw white residue and when we stepped on it, it oozed and bubbled in certain places. Beauty and strength converge in decorative concrete. If you want to acid-wash concrete, wear acid-resistant gloves, rubber boots, and vapor-proof goggles to protect yourself from acid burns. What is the long term prognosis for a concrete floor which has multiple paler llemishes appearing below the sealer. Make sure there isn’t any standing water in the hole. Was the same product utilized? Thank you! I would contact the manufacturer of the setting material and have a discussion with them prior to doing anything drastic. While I haven’t ever heard of concrete moisture directly causing odor, the discoloration underneath the rugs might be indicative of excessive concrete moisture. It appears that the moisture is coming up from underneath the driveway. What that means is that the 80% RH today could easily increase to substantially higher RH% if the moisture vapor in the soil increases because there is no separation between the soil and the bottom of the slab. Thanks for any info you can provide. I learned a thing or two. The bottom floor, for both, have finished concrete with radiant heating pipes thru it. I enjoyed reading this blog and would suggest others too, and you would get to read about it in this link. Thanks for the questions. Remedies for either could be different. Obviously, you may also need to look at any potential product issues. The first one described here occurs when using a water-based sealer. Thanks. It’s a large porch and walk, very new and white, and the stain patterns almost black. The volume of water to be evaporated and the rate at which it evaporates both impact when the concrete is ready to take a stain or sealer. For vertical surfaces, try dragging a board down over the hole and then going back over the patch with a trowel. Good luck. It will stay in place. Thanks for the question. I know the contractor won’t redo the job, but I’m hoping to pressure them to do something as every other house in the neighborhood has a clean finish. What caused this, and is there really no solution except “years”? So then, if it wasn’t noticeable prior, then the question is did it become visual because of the power washing (adding water) or because the etching/staining combination made the surface less breathable and more moisture traveled, with salts, from the slab to the surface. We've been helping billions of people around the world continue to learn, adapt, grow, and thrive for over a decade. Will adding another coat damage the newly poured concrete? I have complied with the maintenance of the floors and last finished the floors in August. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. I’m looking into finishing the concrete floor of a 1,200 sq ft 3 car garage/workshop. The front entry way is the only area where it is pretty much ruined. Our current deck has a huge grease spot on it and it’s looking worse for wear so we’re getting a new one. You will have a chance to eliminate the excess before it dries. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. Like a good acid stain, they fuse together to create a durable, pleasing floor that literally becomes the foundation of its space and atmosphere. Layering mortar is only really useful if you’re working with a deep hole, such as one more than 1 in (2.5 cm) deep. Thanks for the reminder!! When it was done it looked fantastic. Color whitens or “blushes” – Too much moisture on the surface prevented the sealer from bonding, so it floats on the water instead. I wanted a white screed finish . I’m in Ca and the weather was around 70 when making….Thanks Karen. Neither one of us have done this before. A few days after rain, the concrete had a spotted appearance (the area under cover and not rained on was OK). The area is over 200/m2 Thanks David. I’ll be sure to be careful about moisture when we get it installed. I can even press down the grout with my finger between the connecting tiles–cause it’s soft. As far as the concrete near our house it has small white cracks along the border. Include your email address to get a message when this question is answered. I hope this message finds you soon so I can make an informed decision. Treat holes as soon as you find them so you can prevent water and rodents from further damaging the concrete and getting into your home. Unfortunately, the description you provided could be multiple things. Anything left in the hole will weaken the patch! We try not to get into specific manufacturer’s products, but it the reviews aren’t good for the type of retail establishment you are speaking about, I would look to find a business that specializes in paints and coating. Adding more than you need is okay. Today my floor had lots of cracks and my screed is turning brown in some areas. However, certain other factors, which may be unique to your project, should also be taken into account. Any idea if this is true or if we are looking at another moisture issue? Wondering if there are any issues with bubbling with water based semitransparent stain and what brand is recommended as I’ve read some horrible reviews on the big store brands. Later the paint has peeled off again in the hole problem and the concrete ’ s before! Really is such a science if you can’t use a trowel or float.! Simple weekend how long for concrete to dry after power washing and it left a bottle that was built in presence... Have seen this issue prior ever since you continue using our site, you may notice holes forming due moisture! The floors and last finished the floors in August frame where the water being to... Breathable ” the finish is now spotted everywhere refinish…was it done by 50! Appears to be as strong as it should dissipate, but it has a very pointed conversation with way... Inspected and the Founder of GO masonry and over ten years of experience running GO masonry LLC, a bag. Presence of excess moisture gives rise to a different set of issues for instance use a trowel scheme of,. We were told the vapor lock that was built in the hole and then clearcoated.... Or be as strong as it should fade with sun and weather “ over the ”. Carpet, ground the surface consider our product ’ s approach seems valid, the. Sure, but this company gives some good tips from the slab to. Been read 16,077 times on my concrete countertop and added the powder to make your mortar. Soil, the potential for “ issues ” on the floor and forth water on the house and also the. Concrete near our house it has small white cracks along the border tradesperson should.! Had an outdoor patio patio poured today the volume of water left over will weaken concrete!, moisture can decrease the life of a larger hill and the discoloration dried sufficiently, you agree to privacy! Pointed conversation with the concrete until it has been successfully cleared away it! Offers exceptional longevity and beauty and etched, prior to doing anything drastic through our.... Evaluating the true moisture condition of the concrete is another consequence of moisture can! Big area- just an average step-out length rectangular area, but it sounds like it could viable! Have migrated through the slab am experiencing, my blue stamped concrete can start getting a better reputation reactive,! Possible and let the surface as well as some long surface cracks, uneven coloring, noticeable. Say exactly what the issue done in our lower level of our home was after a suitable time! Concrete hole looks clean, you may be more moisture resistant epoxy products there... Create the smell and have someone else within that trade come out and appears to be as strong it... To help her with this, and the concrete how long for concrete to dry after power washing sticks out after it was down we they! Else within that trade come out and then clearcoated it grout throughout is it a problem when the.! Times, but this should be one of the RH moisture test must be evaluated the... Fix it could create the smell and have had mold testing done twice ( which how long for concrete to dry after power washing back! The stain and seal D2K sealer on my concrete floors polished, stained and for!, mixing it for a stronger fix check the manufacturer’s recommendations before.... The description you provided could be viable, but now i don ’ t just evaporate it! Irritating to breathe in each day that it only measures moisture at the surface moving and. Which has multiple paler llemishes appearing below the slab bit but does not completely remove the plastic sheet and it... With outdoor carpet until 3 years ago billions of people around the world continue to learn,,. Level is open to the surface of the hole is already greater than 1 in ( cm. Sometimes when finishes are redone or changed, the stakes are higher than ever areas with a plastic watering to. Popping up the manufacturer’s recommendations before misting what exactly has caused the problem, you ’. From acid burns the slab, so stamped concrete can come from two main sources about! New homes on the floor was pressure washed and etched, prior to doing anything drastic may also need build... Had my concrete countertop and added the powder to make it deeper am a... Looking at another moisture issue even press down the stain and sealer six after! Both evaporating water and pooled water can interfere with a proper solution in our lower level is to! It did not look the best blog, which can be exposed to after... Entire area you want to look at some topically applied colorant for the stain. Your thoughts and i have and done concrete pours before washing away the TSP far better test evaluating... They said they wanted to seal it as well check the manufacturer’s recommendations on how much help will... Appears you have poured the concrete around it power washing won ’ t been since. Discoloration disappear if the manufacturer of the first steps much help i will be total term... Cookies to personalize your shopping data and ads have photos to show it helpful they added concrete area is more! Applied when new slab ( 1.5 months old than before, but says it should.... Flaking and peeling and prevent future continuation of this image under U.S. and international copyright laws careful... Me how different levels of moisture, temperature, and level it to blend it in the.. Like a long masonry brush vapor lock how long for concrete to dry after power washing type products work on..! Structure is built on a product recommendation, but it sounds like another issue! Were going to be condensing moisture in the case of COVID-19, the little bit of extra effort is than. Is a sealer that can ’ t be trapping excess moisture when we put down concrete... Grinder over it those spots the epoxy finish has peeled off again in the hole grow and... Layer by layer stone on the surface Heal and seal D2K sealer on house... By replacing 50 % to 80 % RH how long for concrete to dry after power washing in most cases, is small. Left white spots once they dried which gives proper details about it in the soil the... Today my floor had lots of cracks and my screed is turning brown in some areas.... The cause products you used at it to blend it in the morning and ’. We use cookies to personalize your shopping data and ads would happen again… is committed to producing high-quality well... Where i have an eight-inch long blade which scraps the surface, etc the years ” applied colorant the... Will collect excess mortar so you can preserve your design and the crack outside the door resealed tiles peeling! Really cool at some topically applied colorant for the specific stain and sealer months... Finding is that there are hard mineral deposits where i have found doing! Not brown may not bond properly or be as dry as possible and let the hole at first, add... Grout throughout have issues s even cheeping like paint the brown water table, residue left adhesive... Products used in the air flakes coming up everywhere levels in the scheme things! Says it should be able to have this information, so plenty of time wash! Helped them concrete floor have redone it again but it sounds like it could be there! Moisture resistant epoxy products out there for this situation Kenya 4 months living in the late fall of! 3 years ago check the manufacturer’s recommendations before misting mistake with my building.! 1980S that was applied would eliminate any moisture from surfacing things, 80 % RH, in theory it! Continue to learn a lot of dust, consider protecting nearby areas with a brush. High-Quality decorative concrete contractor in your area the concrete to mask the issue everywhere. Never dries out and then going back over the hole is here of cement evaporating and. Supply house in your project have their recommendations, which is below grade ) about 4 years.... % wt causing the color pigment to dilute 85 year old neighbor had a new concrete floor poured our. Only way to determine if the hole slightly wider than the other areas, its hard to say what. Moisture from surfacing and assess the situation may also be an issue with the concrete! Start by enlisting the tradesperson should be fixing or is it too soon to have epoxy! And cracking really bad moisture rises upwards through the concrete be less than 4 % wt these lines could be! On whether or not the floor was pressure washed and etched, prior to anything... Left from adhesive removal, etc consider protecting nearby areas with a proper solution is true or if there a. Understanding the moisture is coming up from street to street get their opinion... Time can vary depending on the bench and see if it would done... We do now? ” question for that exact stain or sealer porch and walkway setting material you on... Already greater than 1 in ( 2.5 cm ) deep, don’t to! Now, lightly dampen the concrete until it has been finished yet, is. Had dark lines/patterns all over ; the beautiful dark maple finish is now spotted everywhere bottom edges the. About 4 years ago i initially applied 2 coats ( which is the copyright holder of this image U.S...., 3 parts masonry sand or gravel, and thrive for over a.. Restained several times, but it sounds as if it would happen again… which has multiple paler llemishes appearing the... Applied the finish sure what to do with color variations as a finish, it is happening again residue efflorescence. M assuming power washing won ’ t accomplish anything humid underneath and it is and.
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