Duratec® Grey Vinyl Ester PrimerDuratec Grey Vinyl Ester Primer brings unmatched strength and performance in a highly functional resin system. It was originally designed as the premier barrier coat for boat hulls and repairs, but has been found to be useful in many composite applications including resurfacing molds, marine construction and repair, and corrosion protection for tank lining and piping. It's also frequently used when fabricating dimensionally stable general purpose and