BIOSTOP® Fire Rated Intumescent Putty Pads

padsAre used to maintain the hourly rating of fire rated walls containing electrical outlet boxes and to reduce sound transmission. Only one pad thickness (1/8 inch) is required for a 1 or 2 hour fire rating. No additional putty material needed to plug end of each electrical metallic tube or conduit as its connection to the box. Required by Building Codes in rated partitions where horizontal separation of opposite facing electrical boxes is less than 24 inches (horizontally).

Product Datasheet
Approved Listing
List of Approved Systems

Sound Transmission Class (STC) Rating 60.

Tested in a UL 411 wall assembly/section to ASTM E90.

c-ul-us1 fm-approved

Product Code Size Qty per Case
66490 6″ x 7″ x 1/8″ thick 20
66336 7″ x 7″ x 1/8″ thick 20