What does 25WB+ mean?

Product Description. 3M™ Fire Barrier Sealant CP 25WB+ is a high-performance, ready-to-use, gun-grade, latex-based, intumescent sealant that dries to form a monolithic firestop seal that also acts as a barrier to airborne sound transmission.

What is 3M Fire Barrier sealant used for?

This sealant is designed to help control the spread of fire, smoke and noxious gases before, during and after exposure to a fire when installed in accordance with a listed through-penetration or fire-resistive joint assembly system (STC-Rating of 54 when tested in a STC 54-rated wall assembly).

Can you paint over 3M Fire Barrier sealant?

A single-part, sag-resistant, water-based acrylic latex sealant, 3M Fire Barrier Sealant FD 150+ has excellent adhesion characteristics to most common construction materials. And, since it dries to the touch within one hour, it can be painted for a more professional-looking job.

What is intumescent fire caulk?

WF300 Intumescent Firestop Caulk is a latex-based firestop caulk designed for residential wood frame construction. WF300 Caulk is tested for addressing penetrations through wood/frame construction such as wood stud walls and floor/ceiling assemblies.

Can ULC S115?

ULC Standards is pleased to announce the publication of the Fifth Edition of CAN/ULC- S115:2018, Standard Method of Fire Tests of Firestop Systems. This method of test is applicable to firestop systems with or without penetrating items such as cables, cable trays, conduits, ducts and pipes.

How long do fire stops last?

A: StoveTop FireStop’s fire suppression canisters have a six-year effective life. After six years from the manufacturing date, the canisters must be replaced or removed.

What is fire caulking?

Fire caulking, otherwise referred to as fire-stop products, involves sealing joints, seams and other openings to ensure optimal fire safety for buildings. It is important to understand the importance and ensure your property is properly fire caulked to be able to properly control a fire if one were to occur.

Is fire caulking cancerous?

Chronic: Prolonged or repeated skin exposure may cause dermatitis (dry red skin). This product contains trace amounts of a suspected human carcinogen by inhalation: however, this hazard is not expected to be significant due to viscosity and consistency of the mixture.