AST Sealant Tape

• Open-cell foam is impregnated, compressed to size of opening to be sealed and shipped in reels
• Store strain-energy of compression in the foam means continuous back-pressure is exerted against the metal
• Pressure, combined with adhesive nature of the impregnation, assures reliable adhesion to the metal flange and concrete pad
• Expands and provides a long-term sealant in the irregularities found within the joint and concrete surfaces