GoldFlex #615 Asphalt Crack and Joint Sealant is a premium hot melt, polymer-modified, asphalt crack sealant designed for use on asphalt, concrete, streets, and parking lots. GoldFlex #615 Crack sealant is a blend of SBS polymer modified asphalt, fillers, and additives designed as a hot applied, premium paveent joint and crack sealant. Application to prepared joints or cracks is by hot application from a heated melter then squeegeed into place. Only 100% new polymer is used, with no recycled polymer, rubber, or reclaimed rubber, giving superior performance over a variety of temperatures and climates. It is packaged in easy-to-use 35 lb. “bricks” that are wrapped with meltable poly in an individual cardboard carton and palletized.