Martin Bushey

07:03AM | 06/02/02
Member Since: 05/29/02
1 lifetime posts
Dear Experts:

I have had numerous damp spots along the wall where wetness appears after a rain.

In most cases, it is a cold damp sensation; not water. However, I do have several cracks

or micro openings where water is flowing in or wetness accumulates. Some of these are along the foundation wall

and slab joint. Per your instructions, I plan to use the Drylok hydraulic cement to plug the cracks and openings.

However, I also plan to apply Drylok sealant as an additional barrier on my interior basement wall.

However, another sealant has been applied; here are my circumstances and questions: (Please help!)

My contractor applied 1 coat of Theroseal to the foundation wall surface already. He did not prepare the

basement wall properly before the application nor did they apply a sufficient coat. So, I still have the dampness.

You can see wall areas that are dry; the Theroseal appears light gray in color and is dry to the touch.

However, other sections are dark gray and damp to the touch. You can also see where it was lightly applied or

missed in the wall joints and cracks. So, water dampness penetrates at those locations, as well. The Theroseal

has bind’ed with the cinder block wall; it likes a cement based plaster. Anyway, hear are my questions.

My question: Can I apply Drylock over the Theroseal product?

Do you know how long it takes for the Theroseal to cure?

Is there anything special I need to do to apply the Drylock over the Theroseal to ensure a strong barrier?

My French drain is working and not clogged at all. I want to use Drylock as the final barrier.

Thanks, please help, any advise will he helpful.

Martin Bushey

PEO Information Management Office
Bldg. 5681, Room 140
Redstone Arsenal, AL 35898
[email protected]
Voice: 1-256-313-5952 DSN: 897-5952
Fax: 1-256-313-4371 DSN: 897-4371


08:23AM | 09/11/02
Member Since: 08/19/02
7 lifetime posts
I am having a disagreement with my builder about using Thoroseal as a waterproofing product for my basement. I have engaged an engineer who has researched the issue and determined that although Thoroseal claims to be a waterproofing product, it really isn't. Among the problems he has noted with it is that it acts the same as stucco and if it cracks, you will get leaks.

I'm interested in any other information you can provide me about your problem and will keep you informed about mine. It also seems that the actual application makes a lot of difference. If it isn't mixed correctly or done with enough coats, it also leaks.

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