EX-74 UV Resistant Epoxy Polymer EX-74 is industrial grade polymer coating from the creators of Envirotex. Its extremely clear, tough, high gloss coating creates a deep, glass-like appearance on any sealed surface. Two or more layers can be applied for added depth and protection. Its extended "open time" allows up to 5 minutes in the mixing container and up to one hour working time on the surface being coated. EX-74 is waterproof, heat and alcohol resistant. It has been formulated for improved UV resistance to reduce yellowing and surface degradation from UV exposure. It is not weather resistant and not recommended for unprotected exterior use. Available in 3 sizes: 946mL, 3.78L, 2 Gallon (7.57 L). Each kit contains one part hardener and one part resin. Caution: Contains corrosive chemicals. Use in a well-ventilated area and observe all safety precautions. For long term storage keep in a cool, dark environment. Both heat and light have a darkening effect on epoxy coatings in their raw liquid form. Please note this product is not carried at all of our retail stores. Please call ahead to ensure availability.