perma dry is the sister company to the canadian zavlar (the product i used). i had roughly 2 gallons left over on my 320 gallon build. i think one bucket of pnd coat or rubber coat will be oodles
So I've been emailing with Perma-dri and they are telling me that I will need a Min. of 6 gallons and 7-8gal preferred for my build.... That seems like a lot and makes it even more expensive than Pond Armor.So now I'm not sure what I'm going to do to seal my tank and sump...
