What should I purchase to remove Drylok?

Old 08-26-18, 10:13 AM
Thread Starter
Join Date: Aug 2018
Location: USA
Posts: 1
Upvotes: 0
Received 0 Upvotes on 0 Posts
What should I purchase to remove Drylok?

I recently purchased what I thought to be clear drylok, but realized it was actually white drylok halfway through applying some. Now, I either have to choose to paint the entire exterior of the chimney white, or remove the drylok and apply a clear coat.

What industrial-grade solvent should I purchase to get rid of the drylok?
Attached Images  

Last edited by DryOats; 08-26-18 at 10:44 AM.
Old 08-26-18, 10:27 AM
XSleeper's Avatar
Group Moderator
Join Date: Dec 2004
Posts: 26,207
Received 1,712 Upvotes on 1,536 Posts
Huh. Well at this point your only choice would be to use a chemical stripper. (Paint stripper). There are many brands to choose from, what you find will depend on where you shop. After you leave it sit a while you will likely need to scrub it with a wire brush or wire wheel on a drill. They also make wire strippers that go on a drill but that might be harsh on the brick and mortar.

It will probably require several applications as the paint may not want to come out of the texture.
Old 08-27-18, 03:16 AM
Forum Topic Moderator
Join Date: Mar 2005
Location: USA - N.E.Tn
Posts: 45,160
Received 741 Upvotes on 647 Posts
I wish you luck. Part of what makes drylok work is it's ability to suck into the masonry. I'd start with a chemical stripper and as X stated it will take multiple coats. I'd probably remove the 1st coat of stripper with a pressure washer although care must be used not to damage the brick/mortar. I suspect you'd have to finish by scrubbing some sort of solvent with a brush. Denatured alcohol dissolves latex paints but I don't know how effective it would be on drylok.

almost forgot welcome to the forums!

Last edited by marksr; 08-27-18 at 04:14 AM. Reason: typo
Old 08-27-18, 03:46 AM
Marq1's Avatar
Join Date: Sep 2016
Location: USA MI
Posts: 9,263
Received 1,103 Upvotes on 1,003 Posts
You probably need to take a step back and think about this one.

Realize even it you are 95% effective in removing there is going to be a white stain on the brick.

Brick and mortar are very porous and some of that material is simply not going to come off and as noted depending on what is done to clean it up there is a chance that damage to the brick may occur.
Old 08-27-18, 04:02 AM
Norm201's Avatar
Join Date: Sep 2013
Location: United States
Posts: 10,626
Received 671 Upvotes on 594 Posts
As Marq says, you will always see the "stain". What I would do is clean and scrape as suggested, then try to "mix" a paint that comes close to matching the old brick. You may need a person who is "artsy/fartsy" type to come up with a good match. As it weathers over the years it become less and led noticeable. Worse case scenario is call brick layer to replace and repair affected brick.

Thread Tools
Search this Thread
Ask a Question
Question Title: