i am fixing a leak in the baptismal at my church. The pastor wants the whole thing glassed so it will never be a problem again. It is a significant leak, i just don't know about how well it will adhere to the cement. i am using 1.5 oz mat just to make a shell. if there are any other suggestions as far as what will fix the crack (its a big crack) please help me out.
No, fiberglass will not stick to cement.
you could fit and glue a rubber liner maybe...if the cement is a smooth finish i would try the fiber glass...
Just make sure the cement is clean. You may want to do an acid wash to remove any oil on the cement surface. Other than that, fiberglass will stick to almost anything. It should work fine.
Fiber glass will not stick to cement and also due to material properties they expand and contract at different rates. But saying that, i think ur idea might work. I think it would be simpler and probably cheaper to fill the whole a non shrinking mortar then painting the inside with an epoxy based paint. That would give you the best of both worlds
