Interlux Interprotect Epoxy Barrier Coat Kit - Gray Applying Interlux 200E can help protect hulls from damaging water absorption that can cause long-term, costly repairs to your boat. Interprotect 200E is a two-part epoxy coating that will provide protection for your new and used fiberglass hulls by providing an overlapping barrier of microplates to keep water from penetrating the boats exterior coating. Interlux Interprotect 200E is fast drying, and both parts can be applied in two days. It is