Details
Biostop® 500+ is a water-based, flexible, highly intumescent sealant
designed for use on metal, insulated, fiberglass and plastic pipes. It can
also be used for top of the wall construction joints, as well as power and
telephone cables. STC rating 54, Tested in a UL 411 wall assembly/section to ASTM E90.
Patent #6,207,085.
Biostop® 500+ will prevent the spread of flames, smoke, hot gases and water
through joint openings and through-penetrations. No dilution or mixing is
required for use. No special skills are necessary for installation.
Biostop® 500+ has passed ASTM E 1966/UL 2079 for top of the wall applications
with or with out backing and as little as 1/4 inch depth of caulk. The test assembly
was also subjected to 500 cycles on a specially built machine that successfully
demonstrated the product's durability and movement characteristics.