Is My New Antifouling Compatible? Once you have identified the Interlux antifouling that's most suitable, if you have an existing coating on your hull you will need to establish the compatibility of the two products. Use this simple table to check compatibility between Interlux antifoulings and also with competitor products Applying your desired Interlux antifouling has never been easier. Compatibility is always an issue boaters must worry about, but there are 3 easy steps to solve this problem: 1. Check for compatibility with old antifouling. If you know what antifouling is currently on your boat, you can quickly determine whether your Interlux paint choice is compatible. 2. Use Primocon YPA984 as a tie-coat primer. If you do not know what the old antifouling is on your boat, it is still easy. Apply our Primocon YPA984 primer directly to the old antifouling. Then simply overcoat with the Interlux antifouling of your choice. (Not compatible with VC Offshore, Baltoplate, VC17m, VC17m Extraor any water based paints.) 3. Remove old antifouling. If you would prefer to remove the old antifouling, we have the easy solution, Interlux Interstrip 299E paint remover. It's compatible with your valuable fiberglass hull. Interstrip can remove several coats of paint in one application. After stripping, you are ready to prime and paint your newly cleaned hull. #DIY #Maintenance #Paint