
UL Listed Fireproof Acrylic Sealant for Passive Fire Protection 3m Cp 25wb. Up to 4 Hours Fire Rating: Provides up to 4 hours of fire protection tested per ASTM E 814 (UL 1479). STC 54 Acoustic Rating: Offers sound control with an STC rating of 54 in a 54-rated wall assembly. Tool-Free Hand Application: Ready-to-use material applied by hand without mixing or special tools. Re-enterable and Repairable: Can be re-entered after installation to save time and money on repairs. Non-Corrosive to Metal: Safe for use with steel or plastic electrical outlet boxes and metal pipes. Draft and Smoke Seal: Effectively seals against drafts, cold smoke, and reduces noise transfer. Compatible with Cable Jackets: Safe for synthetic cable jackets and suitable for firestopping cable bundles. OEM and ODM Services: Supplier offers customization services for tailored fire protection solutions.