Soudal's Genius Gun fire and acoustic expanding foam is a fast-curing B1 fire class foam that also has exceptional thermal and acoustic insulation properties. It adheres well to most materials and can be used for both indoor and outdoor applications including filling gaps from insulation board installation.
The expanding foam offers up to four hours of fire resistance (depending on the joint configuration). It conforms to fire class DIN 4102 (fire behaviour of building materials and elements) and has been graded B1, hardly flammable. The foam fills any irregular gaps between joints, forming a tight seal with an insulation factor of 36mW/mK.
If you need to prevent sound transmitting between areas, it also has an acoustic rating of 58 dB. Soudal's Genius Gun dispenser makes application easy. It has accurate trigger control, and can even be used one handed.
• Genius Gun applicator for accurate trigger control and one-handed application
• Excellent thermal and acoustic insulation properties
• Reusable for up to six weeks if bung attached after use
• Impressive adhesion on most construction materials
• Fire resistance, up to 4 hours depending on joint configuration
• Suitable for interior and exterior use
• Fire class DIN 4102 B1
• Acoustic rating - 58 dB
• Insulation factor - 36mW/mK

Delivery (UK mainland only)

 

Next Day: £5, or FREE over £40

- Order by 9pm Mon-Thu: next working day

- Order Fri to 5pm Sun: Monday

- Order after 5pm Sun: Tuesday

 

Pre-12pm: £10

- Same cut-offs as Next Day above

 

Saturday & Sunday: £10, or £5 over £40, or FREE over £75

- Saturday: order by 6pm Fri

- Sunday: order by 4pm Sat

 

Heavy items (over 30kg)

- Mon-Fri only. Order by 6pm and allow up to two working days

- Order after 6pm Thu: arrives after the weekend

 

Supplier items

- Sent directly by the supplier, so timings vary. Lead times appear on the product page in working days (Mon-Fri)

 

More about delivery 

Next Business Day Collection (eligible items)

- Order by 9pm Mon-Thu: collect next day

- Order after 9pm Thu to 5pm Sun: collect Monday

- Heavy items (over 30kg): allow up to two working days

 

Opening hours

- Weekdays vary by branch: open 6:30am-7am, close 6pm-8pm

- Saturday: 7am-6pm

- Sunday: 9am-4pm

 

Check your local store's hours and that it's open before visiting. Please wait for our text or email before collecting.

 

Holding your order
We'll hold it for 14 days, then automatically refund your original payment method.