Permatex Silicone Sealant, Ultra Copper RTV, 3.00 oz. Tube (Maximum Temperature) SKU PEX-81878 $6.52 Quantity discounts available QuantityPrice (0)No Reviews yet Number of Pieces Item Custom Price Quantity -+ Add to Cart Details This Permatex Ultra Copper RTV silicone adhesive is designed to provide a waterproof, flexible, weather-resistant seal around metal. It's designed for... Details Back DetailsThis Permatex Ultra Copper RTV silicone adhesive is designed to provide a waterproof, flexible, weather-resistant seal around metal. It's designed for temperatures of up to 700 degrees F. Ratings & ReviewsNo reviews availableBe the first to Write a Review