Stripping sealer from stained concrete

[backroad]

I posted a thread a few months ago asking about the white spots on my stained concrete. I've decided to strip the sealer off and attempt to reseal. I've searched here and across the rest of the internet, and I'm a little confused on the stripping part. Some say to apply a chemical stripper, while others say to rent a Diamabrush and mechanically strip the floor.

Is the diamabrush/grinder going to grind into the concrete, taking some of my stain with it? Or just the current sealer?

Thanks.

 

[LegacyIndustrial]

Backroad, in an area out of view, try rolling some xylol or xylene over the floor and see what happens. This is a way to "fix" acrylic sealers. This will only work if this is a solvent based acrylic sealer. If WB you cannot do it, it will ruin the floor. AGAIN, OUT OF SITE AREA, JIC.

Pour the material into a pan and dip your roller like you are painting the floor. Work the roller and the solvent in an area for up to 10 minutes if necessary. You need to get the solvent down to the stain.

Surprised the mfg you purchased this from didn't recommend.

 

[Garage Flooring]

Good points all. One more thing to add. Often a solvent based acrylic sealer back over a solvent based acrylic sealer will 're wet' and you don't need to strip. A little context would help. For example are you replacing an acrylic sealer with a penetrating sealer?

 

[backroad]

Good points all. One more thing to add. Often a solvent based acrylic sealer back over a solvent based acrylic sealer will 're wet' and you don't need to strip. A little context would help. For example are you replacing an acrylic sealer with a penetrating sealer?

I was planning on stripping the old sealer and going back with a solvent based acrylic sealer (which it has now) but with a better brand. In that thread I posted I said the sealer was bubbling up. Its really not bubbling, just has white spots showing up everywhere.

http://www.garagejournal.com/forum/showthread.php?t=290969&highlight=stained+concrete

 

[Garage Flooring]

I was planning on stripping the old sealer and going back with a solvent based acrylic sealer (which it has now) but with a better brand. In that thread I posted I said the sealer was bubbling up. Its really not bubbling, just has white spots showing up everywhere.

http://www.garagejournal.com/forum/showthread.php?t=290969&highlight=stained+concrete

I would NOT grind that IMHO. I would try a little solvent in an unseen area as described above but I am not convinced you can stop there. I'm sure people will say I am oversimplifying but forgetting the aesthetics for a second, when it rains, etc does the sealer do its job? Does moisture react with it the way it used to?

Acrylic sealers are a maintainence product and you will need to reapply from time to time. I have a sealer that I believe would work very well in this application. Send me a pm and I will get you some pricing etc if you want.

 

[backroad]

Backroad, in an area out of view, try rolling some xylol or xylene over the floor and see what happens. This is a way to "fix" acrylic sealers. This will only work if this is a solvent based acrylic sealer. If WB you cannot do it, it will ruin the floor. AGAIN, OUT OF SITE AREA, JIC.

Pour the material into a pan and dip your roller like you are painting the floor. Work the roller and the solvent in an area for up to 10 minutes if necessary. You need to get the solvent down to the stain.

Surprised the mfg you purchased this from didn't recommend.

Just wanted to give you guys a public Thank You!. I followed your instructions and the floors look brand new. Wife is happy and I'm happy that I'm not putting new flooring down. Thanks again.

 

[LegacyIndustrial]

Good for you! Glad I could help.


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