Monday, May 25, 2015

Reseal Stamped concrete

** Maintenance tips for stamped concrete **

Some questions you might have about maintenance for your stamped concrete.


Should I reseal my stamped concrete?

My stamped concrete appears to be fading. Is it fading, or is this something to do with the sealer?

I resealed my stamped concrete with a sealer for masonry that I bought at Home Depot, is that ok?

I decided to reseal my stamped concrete. Just after I finshed, it started raining, is that ok?

How do I know if I should use solvent-based sealer or water-based sealer?

Some articles I read about resealing stamped concrete say it it better to spray it on and some say it is better to roll it on. Which is better?

I resealed my stamped concrete, and not it is slippery when it is wet. Did I do something wrong?

I resealed my stamped concrete, and within a few minutes after I was finished bubbles began to appear. What's going on? Did I do something wrong? Can this be fixed?

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Some answers for you about resealing your stamped concrete.

Stamped concrete generally should be resealed each 2-4 years depending on sun exposure and use patterns, etc. Old sealer does not have to be removed first before new sealer is applied.



The best indications that you need new sealer is that when your stamped concrete appears to be faded, chalky,  light color, etc... If you have these symptoms, but your stamped concrete is less than a year old, you may have other problems, ie just a reseal may not solve.

Apply solvent based sealer if your stamped concrete was originally sealed with solvent based sealer and likewise, water based if water bases was used previously. If you mix, you could have unusual chemical reaction.

Many owners of stamped concrete think that color also needs to be added to stamped concrete to get the original look back again. Clear sealer itself will bring the original color back 99% of the time. To test this, just use the clear sealer on a very small area. Most often, just clear sealer application is all that is needed.

Best to do the reseal application in the morning when the temperature is cooler, ie not in direct sunlight on a hot day.

To prep the area, powerwash to clean thoroughly. Keep the power washer nozzle a foot or so away from the concrete so that you don't cause damage to the concrete by the power washer. Dry the concrete completely, ie us a leaf blower to help accellerate the drying process. Again, be sure the stamped concrete is completely dry before applying  new sealer. If you apply sealer before the concrete is dry, the moisture can get trapped into the sealer and create other problems. This is more difficult in colder months since the concrete will take longer to dry.

Be sure to purchase and mix in a grit additive. This is a special material that looks a bit like super fine sugar, that should be mixed into the sealer according to manufacturers instructions. When the sealer is applied and dries, the sealer will have a gritty feel to the that sealer is not slippery when wet.

Follow all manufacturers instructions for sealer, grit and all tools that you are using. Be sure do wear gloves, safety glasses, and breathing protection to stay safe.

Dip your paint roller into the sealer and bring a small "puddle" of sealer onto the concrete. Push the puddle around to be sure the sealer gets into the texture of the concrete, and into the grout lines. Be sure to spread the sealer around to apply a thin coat.



If you apply sealer when the temperature is too hot, or in direct sunlight, the sealer can bubble upon application with the hot concrete, or can get like "cotton candy", ie stringy upon contact with the hot concrete.

If you get bubbles, or if the sealer gets wet before it dries and sealer turns white, hazy, wait until the sealer dries, next day, use xylene to correct most sealer problems. Brush on xylene, or spray on out of a small trigger sprayer. Keep it wet with xylene for at least 3-4 minutes, moving it around with a small brush. This will correct many solvent-base sealer problems.

Some generic articles about resealing stamped concrete

Maintaining and Resealing Stamped Concrete:
http://www.concretedecor.net/decorativeconcretearticles/vol-12-no-3-april-2012/trowel-error-maintaining-and-resealing-stamped-concrete/

How to reseal stamped concrete
https://www.youtube.com/watch?v=4-QNrR8qRWE

How to do reseal maintenance for stamped concrete
https://www.youtube.com/watch?v=tjQExJCQ7D0

D.I.Y. – Re-Sealing Stamped Concrete
http://www.rollandcement.com/diy-resealing-stamped-concrete.php



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Hope you found this information helpful.

Salzano Custom Concrete
www.salzanoconcrete.com
703-929-9299

1 comment:

  1. A Salzano Custom Concrete was the perfect choice for Your Home

    ReplyDelete

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