Chimney Flashing Sealer - Flexible Coating That Protects Chimney Flashings from Water Leaks

I thought this product to be on the pricey side but I had a leak around my chimney for a few years and tried just about anything Home Depot had to offer. Not only fixed my leak, It worked on my leaks I had on my metal roof as well.

Very easy to apply and is thick enough to full in holes/cracks. I used it about 6 months ago and haven't had a leak since!

Hired a roofer instead

Works great. Plugged a small leak around the chimney.

The only way to properly do a crown coat is to tape off the area because the stuff is like tar and once you put the coat on, there’s no going back and touching up until it fully cures. If you go back and touch it with your paint brush trying to fix spots it’s just going to get worse and worse and worse. Wait until it dries and go back into a second coat. Yes it’s a messy job but it’s a quick cheap fix. Use a wire brush make sure you clean the crown before you apply insure a good seal. The product itself works great. They should be paying me for such a great review, but it’s the truth.

This stuff seems phenomenal , I applied it [ Colorado ] we have had a very wet 2023 Summer , now it [ October ] seems like a drought again . Go figure ... however after EVERY storm this year [ by the way , I did the flashing on my chimney ] it has been soaked and getting to my cinder block foundation . This is not good . Anyway , after this last heavy rain , I looked , behind fireplace ... perfecto ! This stuff sealed my chimney base , so far so good and it applies very easily .The application is VERY easy , it is water based , dries like oil based , that is seems strong , not lingering wet .By the way , other reviews say the paint brush is shot afterwards , not if you wash it pretty soon after application , it is acrylic , so it washes away . Mine did ... so far so good , we will see next Spring . I think it's a winnerThanks

This works extremely well how long it lasts I don’t know, but I’m very happy with the product so far

It was already open straight out of the box