Fire Mastic – Your Go-To Fireproofing Sealant for Safety

If you’re looking to fireproof a building and stay on top of safety regulations, fire mastic is a must-have. At SSL, we stock a variety of fireproofing sealant products, including top-quality fire mastic sealants from trusted brands. In this guide, we’ll break down what fire mastic is, how it works, and why it’s an essential part of your fire protection plan.

What is Fire Mastic?

Fire mastic, also called intumescent mastic, is a fire-resistant sealant that stops fire, smoke, and toxic gases from spreading through joints, gaps, and openings in buildings. When exposed to high temperatures, this smart sealant expands, sealing gaps and keeping fire-rated walls, floors, and ceilings intact.

How Do These Products Work?

Fire rated mastics contains intumescent compounds that react to heat. When flames hit, it expands dramatically, creating a thick barrier that slows down fire and smoke. This buys crucial time for people to get out and for emergency crews to take action.

Why Use Fire Mastic?

• Strong Fire Resistance – Can provide up to 4 hours of protection, depending on the product.
• Seals Out Smoke and Gas – Stops dangerous smoke and gases from spreading.
• Versatile Application – Works around pipes, cables, ducts, and expansion joints.
• Durable and Long-Lasting – Sticks to a range of materials, including concrete, plasterboard, and steel.
• Meets Fire Safety Standards – Many products are tested to BS EN 1366-4 and other key standards.

Where Can You Fire Rated Sealants?

Fire rated sealants are widely used in both homes and commercial spaces, including:

• Fire-rated walls and partitions – Sealing seams and joints to maintain fire barriers.
• Penetration seals – Filling gaps around pipes, cables, and ducts.
• Expansion joints – Fireproofing movement joints in buildings.
• Doors and frames – Boosting the protection of fire-rated doors.

Choosing the Right Mastic For Your Project

We stock a range of industry leading fire rated sealants from the most reputable brands on the market. However, if you are struggling to selecta fire sealant for your project, here’s what to think about when picking the right one:

• Fire Rating – Make sure it offers the level of fire resistance you need.
• Material Compatibility – Choose a mastic that bonds well with your surfaces.
• Indoor vs. Outdoor Use – Some mastics are designed for external conditions.
• Extra Features – Some offer acoustic insulation and airtight sealing too.

Our Range of Products

We carry a variety of fire mastic options, including:

• Water-based mastics – Low-odour, easy to apply, and eco-friendly.
• Silicone-based mastics – Great flexibility and weather resistance.
• Graphite-based intumescent mastics – High-performance fire stopping around services.

Need Help? We’ve Got You Covered

Choosing the right fire mastic can be tricky, but our expert team is here to help. We offer great prices, bulk discounts, and friendly advice to make sure you get the best solution for your project.

Stay Safe with High-Quality Fire Mastic

Fire safety is non-negotiable, and the right fire mastic can make all the difference. Check out our range today or get in touch with our team for expert advice on the best fireproofing products for your needs.

Contact Us

Want to know more about fire mastic or place an order? Browse our range of fire protection and foam products, or talk to our fireproofing experts today!