The foundation blocks under my house my house are over 60 years old. Even after brushing them with the spacial brush these tape wouldn't stick. The caulk i ordered just in case did work but I will need to buy lots more.

The foundation tape made the job easier than expected.

The product worked out very well. Excellent!

This was amazing tape. So far it still holds! (1 month out) Great for the application and didn't take us long to learn to handle and use it. Just a little practice.

The Foundation Seal Tape is absolutely excellent. Originally, I thought it was very pricey, but once I began using it, I changed my mind. This tape is great for this purpose. I used it to attach the vapor barrier to the foundation walls.