- A long lasting, permanently flexible marine polysulfide sealant which can be sanded, painted and used above and below the waterline. Returns IN NEW ITEMS accepted in 30 days"""ONLY""" if they have NOT being installed and are in similar condition as when they were shipped. If you missed parts of the item, item CANNOT be returned. (2) Some items (custom made items as client choice, core inspection items, special orders) are shipped 1-5 days or even longer times. INTERNATIONAL BUYERS CUSTOMS DUTIES AND TAXES: Buyer is responsible to pay Customs, Duties, and Taxes collected by the destination country. Returns accepted "ONLY" if they item(s) have NOT being installed and are in similar condition as when they were shipped with all packing and instructions. We do sell over 100000 parts. Ask.