If you plan to apply a Pettit topcoat, use the appropriate Pettit primer-and never cross brands. If you plan to apply an Interlux topcoat, use the appropriate Interlux primer. The answer is usually “Yes.” When choosing a primer, always stick to the manufacturer ’s recommendations, which you will find on the paint can’s label. For more on osmotic blistering and barrier coats, see our West Advisor article on Epoxy Barrier Coats. If you keep your boat in the water for extended periods, you might consider applying an epoxy barrier coat, which will prevent water from seeping into the gelcoat. If you need small repairs done on your boat, then this two-part epoxy cold weld system will provide you with superior results. Home Paint and Maintenance Altex Paint Altex Epoxy Primer (2-pack) 1.25L. Note: Chemical sanding, while optional for polyester gelcoat, is recommended for vinylester gelcoat and other blister-resistant gelcoats, which should never be mechanically sanded. Epoxy Primer No.1 is recommended for use as : Primer on suitably prepared steel. SAMURAI 2-Part Spray Paint Epoxy Primer for Marine Surfacer (Undercarriage Black, Pack of 1 Can) 4.0 (28) 1995 (1.77/Ounce) 1.99 delivery Mar 2 - 3 PC-Products PC-11 Epoxy Adhesive Paste, Two-Part Marine Grade, 1lb in Two Cans, Off White 160114 4. Then you have two choices: either sand the hull before applying the bottom paint, or to eliminate the need for sanding, you can “chemically sand” the hull by applying a tie-coat primer that will bond to the hull and the antifouling paint you plan to apply. However, if you plan to apply bottom paint to a new fiberglass boat, you will need to clean the hull and then wipe it down with a solvent to remove vestiges of wax from the factory mold. If you plan to apply the same type of bottom paint that is already on your boat’s hull, you do not need a primer. They must never be eliminated from an application system because they seem to play only a minor part or are covered up by subsequent coats. If they are not used properly, very expensive paint systems can fail. The critical thing to understand is that primers are formulated by each paint manufacturer to work as part of a complete system. They can be used either as build-up coatings or conditioners to prepare the surface for the application and adhesion of topcoats on specific types of materials. Two-part, high-build epoxy barrier coat provides exceptional corrosion protection on aluminum boats, pontoons, and underwater metals. Proper use of primers can spell the difference between a successful project outcome and a poor finish. Protects metals from corrosion, including: aluminum, bronze, stainless steel, cast iron and lead – above and below the waterline.Primers are paint coatings that serve as an intermediate layer between the bare surface and one or more outer coatings.Use over blistered fiberglass as a repair coat, and over unblistered fiberglass as a barrier coat.Recommended Coats: 2-4 depending on intended service. Typical Film Thickness( roller): 3.6-4.2 mils dry film thickness (DFT) per coat, (7.0-8.0 mils wet film thickness (WFT) for smoother finish. These two-component primers are very tough and give the best long-term protection. Typical Film Thickness (spray): 6-7.5 mils dry film thickness (DFT) per coat, (11.5-14.5 mils wet film thickness (WFT) for smoother finish. Epifanes Epoxy Primer and the Epifanes Epoxy HB Coat are epoxy based primers. Tuff Stuff creates an overlapping barrier to eliminate any direct path for water migration. As a universal primer, it can be used for corrosion protection on most metals below the waterline, and for priming any metal. Tuff Stuff is extremely effective for blister prevention on fiberglass, or as a bilge coating, because it is resistant to oil and water. Using microsheet silicate technology, millions of microscopic sheets overlap and build a 100% water barrier that protects the surface from moisture and water penetration. Tuff Stuff is an extremely high-build two-part epoxy primer that dries fast, enabling application of a complete barrier system and bottom paint in just two days.
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