C2 Guard doesn't sit on top of wood like film-forming sealers. It penetrates into the cellular structure and protects from within — no cracking, no peeling, no flaking. Up to 6 years of protection on decks. Up to 10 on fences, siding, and shingles. Eco-friendly, safe for kids, pets, plants, and aquatic environments. Clean and recoat when it's time to refresh — no sanding, no stripping. A two-part system, starting with a clear base formulated with water-shedding ingredients, and then tinted to the color of your choice. The tint provides the added UVA/UVB protection to help protect and preserve the surface. Available in: Clear + 16 semi-transparent stain colors Coverage: Approximately 300 sq. ft. per gallon Ideal for: Exterior projects requiring a protective under-coat and customizable color finish