{"product_id":"west-system-420-aluminum-powder","title":"West System 420 Aluminum Powder","description":"\u003cp\u003eWest System 420 Aluminum Powder is a coating additive you stir into mixed 105 epoxy for a harder, more abrasion-resistant surface with better moisture resistance. It cures metallic gray, gives limited UV protection where the epoxy will not be covered by another coating, and works as a base for paint.\u003c\/p\u003e\u003ch3\u003eHow much to add\u003c\/h3\u003e\u003cp\u003eAdd 5 to 10% by volume, about 1½ tablespoons per 8 fl oz of mixed epoxy. One 36 oz can modifies up to 5 gallons of mixed epoxy. Stir it into resin and hardener that are already mixed. West lists it for fiberglass repairs, reusable mold surfaces, boat bottoms and composite aluminum castings.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFine aluminum powder, 98 to 100% aluminum, 50 to 60 micron average particle size\u003c\/li\u003e\n\u003cli\u003e420-36: 36 oz (1,020 g) can\u003c\/li\u003e\n\u003cli\u003eCures metallic gray; harder, more abrasion- and moisture-resistant coating\u003c\/li\u003e\n\u003cli\u003eLimited UV protection; can be painted over\u003c\/li\u003e\n\u003cli\u003eFor West System 105 resin with any 200-series hardener\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eCoating a fiberglass hull to keep water out? \u003ca href=\"\/products\/west-system-422-barrier-coat-additive\"\u003e422 Barrier Coat Additive\u003c\/a\u003e is the West additive built for blister prevention. For a slick, low-friction coat on rudders and centerboards, see \u003ca href=\"\/products\/west-system-423-graphite-powder\"\u003e423 Graphite Powder\u003c\/a\u003e.\u003c\/p\u003e","brand":"West System","offers":[{"title":"Default Title","offer_id":67756309119278,"sku":"SWES-420-36","price":119.37,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0840\/4071\/2494\/files\/bs-ws4-420-420-36.jpg?v=1792275961","url":"https:\/\/boatsuppliers.com\/products\/west-system-420-aluminum-powder","provider":"Boat Suppliers","version":"1.0","type":"link"}