Soudal Fire Foam Gun Grade Rated B1

Soudal Fire Foam Gun Grade B1 – Professional Fire‑Rated Expanding Foam for Safe, Airtight Sealing

The Soudal Fire Foam Gun Grade Rated B1 is a professional‑quality, fire‑resistant expanding foam designed for safe and reliable sealing around service penetrations, joints and gaps where enhanced fire protection is required. Formulated to meet B1 fire rating standards, this one‑component polyurethane foam expands and cures to form a robust, semi‑rigid structure that helps slow down the spread of fire, smoke and toxic gases.

Engineered specifically for use with a foam applicator gun, Soudal Fire Foam Gun Grade B1 delivers exceptional control and accuracy. The gun‑grade formulation allows you to dispense the foam exactly where it’s needed, with a consistent bead and far less overspray compared with straw‑applied foams. This means cleaner workmanship, reduced waste and faster installation times on site.

Once applied, the foam expands to fill and seal cavities, providing excellent thermal and acoustic insulation. It significantly reduces heat loss and unwanted draughts around window and door frames, service conduits and pipe penetrations. At the same time, it improves sound insulation by blocking air gaps through walls, floors and ceilings.

The cured foam exhibits strong adhesion to most common building substrates including brick, concrete, stone, plaster, wood, metal and many plastics (excluding PE, PP and Teflon). It is easy to cut, shape, sand and over‑paint once fully cured, allowing for a neat, professional finish that integrates seamlessly with surrounding building materials.

Ideal for fire‑stopping and sealing in both residential and commercial projects, Soudal Fire Foam Gun Grade Rated B1 supports compliance with UK and EU building regulations when used as part of an appropriate fire‑stopping system. It is widely used by builders, electricians, plumbers, HVAC installers and other trades who require dependable, professional‑grade fire foam.

Whether you are sealing pipework penetrations through fire‑rated walls, filling gaps around window and door frames, or insulating awkward voids that are difficult to access with traditional materials, Soudal Fire Foam Gun Grade B1 provides a safe, efficient and durable solution.

Always follow local building regulations, manufacturer’s installation instructions and relevant fire‑stopping standards. Fire performance depends on correct application and construction details.

Typical Applications

– Fire‑resistant sealing of cable and pipe penetrations through walls and floors
– Filling and insulating gaps around fire doors and fire‑rated windows
– Sealing joints in partition walls, stud walls and ceiling voids
– Filling cavities around ductwork, ventilation and mechanical services
– General purpose gap filling, insulation and soundproofing where a B1 fire‑rated foam is required

Key Technical Details
(Values are typical and may vary by batch; always refer to the latest Soudal technical data sheet.)

– Type: One‑component, moisture‑curing polyurethane foam
– Fire Class: B1 fire rating (according to relevant test standards)
– Application: For use with PU foam gun (gun‑grade)
– Colour: Typically pink / off‑white (may vary by region)
– Skin Formation: Approx. 8–12 minutes (depending on temperature and humidity)
– Cutting Time: Approx. 65 minutes for a 30 mm bead
– Full Cure: 12–24 hours (depending on bead thickness and conditions)
– Density: ~40 kg/m³ (cured foam)
– Temperature Resistance (cured): Approx. -40°C to +90°C
– Application Temperature: Typically +5°C to +25°C
– Paintable: Yes, once fully cured; compatible with most standard paints
– Shelf Life: Typically 12 months in unopened packaging, stored upright in a cool, dry place

Important: Soudal Fire Foam Gun Grade B1 is part of a fire‑stopping solution and should be used in conjunction with appropriate design details, collars, wraps or seals as required by the fire strategy and test data.

Soudal Fire Foam Gun Grade B1 Features with Customer‑Focused Benefits

– B1 Fire‑Rated Formula
Specifically designed to help limit the spread of fire and smoke, supporting safer compartmentation in buildings and helping you meet fire safety requirements.

– Gun‑Grade for Professional Control
Used with a PU foam applicator gun for accurate dosing, cleaner application and reduced foam wastage, ideal for repetitive, large‑scale installation work.

– **High Expansion & Gap‑Filling Capacity**
Expands to fill large voids and irregular gaps, ensuring **complete sealing** even in hard‑to‑reach areas for better insulation and fire protection.

– Excellent Thermal & Acoustic Insulation
Once cured, the foam provides effective thermal and sound insulation, improving energy efficiency and reducing noise transfer between rooms or property boundaries.

– **Strong Adhesion to Common Building Materials
Bonds firmly to brick, concrete, masonry, plaster, wood, metals and many plastics, giving a durable, long‑lasting seal that stays in place.

– Fast Curing & Easy Finishing
Quick skin formation and cutting time help speed up project completion. The foam can be easily trimmed, sanded and painted for a clean, professional finish.

– Versatile Internal Applications
Suitable for a wide range of fire‑stopping, sealing and insulating tasks, making it a highly versatile product to keep on the van for multiple trades.

Soudal Fire Foam Gun Grade B1 Questions & Answers

Q1. What does the B1 fire rating mean for Soudal Fire Foam Gun Grade?
A: The B1 fire rating indicates that the foam is fire‑resistant, helping to reduce the spread of flames and smoke. It is suitable for use in fire‑stopping applications when installed correctly and in line with tested systems and building regulations. DIN 4102 Part 1, Class B1

Q2. Can Soudal Fire Foam Gun Grade B1 be used around pipes and cables?
A: Yes. This foam is commonly used to seal gaps around pipes, conduits and cable trays passing through walls and floors. For critical fire‑stopping penetrations, always follow the tested system details and use any required fire collars, wraps or additional fire‑stopping components specified in the fire strategy.

Q3. Is the foam paintable and can it be plastered over?
A: Once fully cured, Soudal Fire Foam B1 can be cut, sanded and painted with most conventional paints. It can also be plastered over or covered with other finishing materials as part of the wall or ceiling build‑up, ensuring a tidy, discreet appearance.

Q4. Do I need a special gun to apply this foam?
A: Yes. This is a gun‑grade expanding foam, designed for use with a PU foam applicator gun. The gun allows you to control the output precisely, making it more suitable for professional use than straw‑applied foams. Always clean the gun according to the manufacturer’s instructions after use.

Q5. Is Soudal Fire Foam Gun Grade B1 suitable for outdoor use?
A: It can be used in sheltered external locations, but fire‑stopping is typically carried out internally as part of the building fabric. The cured foam must be protected from prolonged UV exposure (sunlight) by covering with render, sealant, paint or other suitable finishes.