Re: Henrys Non Fibered Foundation cold applied sealer/tar

Henrys non fibered cold applied foundation tar has been applied on the INTERIOR wall of my basement section. Should I worry or can I get by with it on and just paint over it. Its only a 10 ft section. I know this should have been applied on the exterior but someone else did it and Im afraid I regret it. HELP!

 

I would regret it as well. The sealer works when applied to the exterior and the instructions state that it is for exterior use only. So, I wouldn't count on it waterproofing properties.

"Should I worry or can I get by with it on and just paint over it."
Well, that depends. Are you worried about getting water in your basement? If so and this is part of the protection then I would worry. You can paint over if you want but I have no idea how well the paint will adhere or how it will look in a few years.

 

Latex paint does ok over tar, oil base coatings will partially dissolve the tar and discolor the paint.

 

Thank you!!! I am having the exterior foundation repaired this week but a friend of mine did a "quick fix" for temporary until then to prevent leaks but I read the walls needed to "breathe" so to speak and was worried I did some kind of "damage" allowing it. As long as it doesnt hurt anything and can paint over it for now? The leaks aren't horrible until it's fixed properly so I think I should be ok. I obviously have no idea about this stuff. There is basically zero info on using this stuff on the interior walls (even by mistake) and what to do about it so I greatly appreciate the feedback! Thanks again!

 

"There is basically zero info on using this stuff on the interior walls (even by mistake) and what to do about it..."
No manufacturer provides instructions to use their product improperly. There are other damp/waterproof coatings intended for interior use like Drylok which have instructions for interior use.

 

I don't recall painting over foundation tar on the inside but have done so multiple times on the exterior where the foundation tar came up too high, never had any issues doing so.