High Expansion Intumescent Sealant
Fire Stopping Products

LUL Intumescent Sealant

Utility in the Underground. 

It’s perhaps even more essential to have advanced fire protection in underground services and penetrations than it is in over ground construction given the high risk of exit in the event of a fire. ROCKWOOL LUL Intumescent Sealant has been specially developed to offer a versatile and durable solution to providing firestopping around service penetrations within underground applications.