If your epoxy project is going outside and be exposed to a significant amount of sunlight, it needs to have UV protection. We manufacture two products that are formulated for compatibility over our epoxy coatings and fiberglassing resins. Both are easily applied after simple surface preparation:
Spar Varnish has been a standard wood coating for marine application for decades. It has gained a reputation for its ability to withstand harsh conditions while retaining its beauty.