Neighbor put sealer on top of new concrete patio. He had it stamped, and colored befor trying to seal.
He sealed it yesterday, today it had like a white film on top. he noticed the sealer was out of good by date.
The question is, what does he do to remove the film without damageing the concrete stamping and color???
Thanks guys for any suggestions!
Replies
Are you sure it was the sealer and not the fact the concrete hadn't cured? Anything less than 30 days or so should only have Cure and Seal or similar products on it. If that is the case I'd wait and see what happens once the concrete has fully cured before trying to remove the sealer.
It was over 30 days.
Ther goes that theory. Sorry I don't have any idea how to fix it.
Good luck.
The concrete was most likely to hot. When ever I seal stamped concrete I do it in the evening when the temperature is dropping. Also I make sure the concrete is below 95 degrees.
The supplier should be able to tell what thinner or stripper to use and then reseal.
it was in the shade and we haven't had very many days in the 80's even. Only one last week
It sounds like he may have used a water based sealer. Many companies make different versions of sealers. The water based are usually used where the good stinky stuff would offend or kill somebody.
Fortunately, the stuff is so bad that it will soon wash off and the white color will disappear.
If that's not what it is, I would call the company immediately and find out what to do about removing it. In fact , I probably would do that anyway just to be safe.
http://acidstain.com
Haven't been there in a longtime, but the people on this forum will help you out.
Mike
Small wheel turn by the fire and rod, big wheel turn by the grace of god.
I have heard of this happening if the sealer freezes at some point while in storage. Powerwash the sealer off and use TK Bright Cure and Seal. It is expensive but looks great.
I'd be very cautious about powerwashing. The pressure necessary to remove the sealer would probably be high enough to pit the surface of the concrete. Dyed and stamped slabs are fairly delicate in my experience.
I've done it on a lot of jobs and never had a problem. If you are worried about it there are a lot of different chemical strippers that will work. google TK sealer and look at their website.
I'm just gun shy because a client of mine didn't like the seal on his slab and pressure washed off both the smooth surface and a lot of the pigment. I did manage to re-seal it but it has never been the same.
Then again this guy does everything at 3200psi raising the wood grain on decks and generally ruining everything he touches. A more sensitive approach probably would give better results.
I'm told that this can happen if your surface is slightly moist, so some guys go over everything with a torch right before laying the sealer. Maybe this helps in troubleshooting? "Use by" dates in the chem. business tend to be very conservative.
-t
The company that manufactored the sealer has reccomended striping. They were no help as to why it happened.
I just hope he doesn't loose the color in the stamped concrete!