Details
Biostop®
Wrap Strip is a flexible strip of highly intumescent firestop material
used primarily for plastic and insulated pipe applications. When exposed to heat,
it expands and forms a strong char to seal off the penetration and prevent the
passage of flames and hot gases. Easy to apply - simply wrap required number
of strips around penetrating item and push into annular space. May also be used
with universal collars. Patent #6,207,085.