The AS900 Flexible Acoustic Sealant is a premium-grade sealant engineered for superior soundproofing performance in both residential and commercial settings. Formulated for long-lasting elasticity, it maintains its sealing integrity over time without shrinking or hardening, ensuring continuous barrier protection against noise, air, and vibration. Ideal for filling and sealing construction joints, perimeter gaps around partitions, door frames, windows, timber walls, ceilings, floors, and service penetrations, AS900 enhances acoustic performance by creating airtight seals that prevent sound transmission.