GF's Exterior 450 Stains are low VOC premium quality, exterior pigmented water-based wood stains designed for outdoor projects with vertical surfaces such as garage doors, entrance doors and furniture. Can be applied to wood, MDF, and fiberglass. Exterior Stain is PFAS-free, and as General Finishes strives for a cleaner and healthier environment, all future product development will be free of “Forever Chemicals." Exterior 450 is also made with more than 50% RENEWABLE RESOURCES.