420 Aluminum Powder will increase the hardness and abrasion resistance of the coated surface and improve its moisture resistance. 420 provides limited protection from ultraviolet light in areas that will not be protected with other coatings and can be used as a base for subsequent painting. Cures to a metallic gray color.
Add to mixed resin/hardener at the rate of 5%-10% by volume or 1.5 tablespoons per 8 fl oz of epoxy (10 strokes each of resin and hardener from 300 Mini Pumps). 36 oz of 420 will modify up to five gallons of mixed epoxy.
Visit Epoxyworks.com to read how this product was used in creating a reusable mold surface for the Gougeon 12.3 canoe—a mold that has been reused multiple times in building canoes at the Gougeon shop. Learn how Tom Pawlak uses this additive to modify the color of mixed epoxy when making repairs to fiberglass tubs and showers, and how Joe Parker used it to cast aluminum-filled window frames to replace the old, broken cast aluminum window frames on a 30-year-old Allied Seabreeze 35 called Stardust. It’s also great for enhancing the durability of the bottoms of shallow draft boats that will be dragged across surfaces or make scrape the rough bottom of a body of water.