{"product_id":"gelcoat-dump-gun","title":"Gelcoat Spray Gun - Quart Dump Cup Sprayer for Gelcoat \u0026 Resin","description":"\u003cp\u003eThis air powered dump gun sprays gelcoat into a mold or over a big repair without a catalyst injection rig. Catalyze each batch in a quart paper cup, drop the cup into the gun, spray it empty and throw it out. Acetone and the nozzle brush clean the gun in under five minutes.\u003c\/p\u003e\n\u003ch3\u003eWill your compressor keep up?\u003c\/h3\u003e\n\u003cp\u003eIt draws 5.8 CFM at 80 psi. Check the rating plate on your compressor: below about 6 CFM you get spitting and spatter instead of an even fan, and most small pancake and hot dog compressors come up short.\u003c\/p\u003e\n\u003ch3\u003eSpraying gelcoat\u003c\/h3\u003e\n\u003cp\u003eIt suits \u003ca href=\"\/products\/orange-tooling-gelcoat-no-wax\"\u003etooling gelcoat\u003c\/a\u003e on a new mold, production molds and hull or deck refinishing with \u003ca href=\"\/products\/pure-white-gelcoat\"\u003epure white gelcoat\u003c\/a\u003e, and it also sprays polyester and vinyl ester resin. At about 2% MEKP and 80°F (27°C) a cup gives you roughly 15 to 20 minutes, less in the sun, so mix only what you can spray and stir the MEKP fully in first. Build about 18 to 20 mils wet over 2 or 3 passes. If gelcoat runs too heavy for the #6 nozzle in a cold shop, add \u003ca href=\"\/products\/styrene\"\u003estyrene\u003c\/a\u003e a little at a time, 10% at most. Flush acetone through the nozzle after the last cup.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCast aluminum lid on a 1 quart plastic outer cup\u003c\/li\u003e\n\u003cli\u003eAir: 5.8 CFM at 80 psi\u003c\/li\u003e\n\u003cli\u003eNozzle: #6 (3\/16 in), sized for gelcoat\u003c\/li\u003e\n\u003cli\u003eNozzle cleaning brush included\u003c\/li\u003e\n\u003cli\u003eTakes disposable paper cups, sold in \u003ca href=\"\/products\/gelcoat-dump-gun-paper-refill-cups\"\u003epacks of 25\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWear eye protection, nitrile gloves and a fitted organic vapor respirator whenever you spray.\u003c\/p\u003e","brand":"Boat Suppliers","offers":[{"title":"Default Title","offer_id":67728138862894,"sku":"ES-120","price":169.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0840\/4071\/2494\/files\/GelcoatSprayGunDumpCup.jpg?v=1791991662","url":"https:\/\/boatsuppliers.com\/products\/gelcoat-dump-gun","provider":"Boat Suppliers","version":"1.0","type":"link"}