The Lippert Alphathane 100% Solids Self-Leveling Sealant is the perfect solution for rubber, metal or fiberglass RV roofs. Specifications•Used To: Flat/ Horizontal Surfaces•Caulk Type: Rubber•Paintable: Yes•Color: White•Unit Size: 9.8 Ounce•Unit Type: Tube•Unit Quantity: Single Perfect For RV Roofs & Horizontal Surfaces Helps Prevent Air & Moisture Intrusion Non-Shrinking | Lippert Alphathane 100% Solids Self-Leveling Sealant, White