Black Jack, 4.75 gallon, Ultra-Roof 1000, 10 year, white siliconized elastomeric, roof coating, advanced waterproofer, professional formula, helps reduce cooling costs, expands & contracts up to 350%, top quality, highly flexible, white acrylic roof coating, silicone enhanced for increased water resistance, adhesion & life expectancy, resists cracking & peeling, provides highly effective barrier against suns heat & UV rays, helps to cool surfaces & reduce interior temperatures. Energy star partner rated.