NS-BST™ is a 20mils thick flashing tape with anti-skid top film surface and made of acrylic adhesive ultra-bonding strength to seal around roof, windows, doors, and other joinery seams. It is suitable for all kinds of wet, hot and cold environments. The rough surface of the backing allows adhesion of spray or liquid sealants and weather-resistant coatings. The adhesive layer is covered with a disposable poly-coated Kraft paper release liner.