Fireproof Coated Board

Passive Fire Protection Wool Fireproof Coated Board is a lightweight, low-density passive fire protection solution designed for cable and pipe penetrations. With a fire resistance of up to 3 hours, it is easy to cut, transport, and install, making it ideal for use in industries such as petroleum, power, communications, and construction.

Reference: https://www.cityfireservice.com/products/fireproof-coated-board/