The Rockwool Acoustic Intumescent Sealant is a 310ml high-performance, versatile sealant designed specifically for fire-stopping and acoustic applications. This product can provide up to four hours of fire resistance, significantly improving the safety of your building. It has excellent adhesion properties, which makes it suitable for sealing joints, voids and irregular holes in fire-rated structures. Its intumescent properties ensure that it expands under heat, filling gaps and maintaining integrity during a fire. Moreover, its additional acoustic properties aid in noise reduction, making it an ideal choice for various residential and commercial applications.