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Soudal Genius Gun Fire & Acoustic Expanding Foam 600ml B1

4.1 (57 reviews)
SKU: 240609120603009 EAN: 5411183154247

Compare 1 price for Soudal Genius Gun Fire & Acoustic Expanding Foam 600ml B1 — from £10.39 across 1 UK seller including Toolstation.

£10.39 10h ago
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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.\nThe 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.\nIf 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.\n• Genius Gun applicator for accurate trigger control and one-handed application\n• Excellent thermal and acoustic insulation properties\n• Reusable for up to six weeks if bung attached after use\n• Impressive adhesion on most construction materials\n• Fire resistance, up to 4 hours depending on joint configuration\n• Suitable for interior and exterior use\n• Fire class DIN 4102 B1\n• Acoustic rating - 58 dB\n• Insulation factor - 36mW/mK
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Customer Reviews 57

4.1
57 reviews
5 star
37
4 star
7
3 star
3
2 star
2
1 star
8
Product
5.0
December 16, 2025
Izzydiot Verified Purchase

This product was in stock, did exactly what it said on the can, easy to use and was competitively priced

Rubbish product.
1.0
October 9, 2025
Redd_Rocket Verified Purchase

This is totally rubbish. Hard to shake and the squeeze design is terrible. It snapped as i was pressing to fill in the corners.

Gun works well and foam is good and blue
5.0
October 7, 2025
DJR8967 Verified Purchase

Easy to control and apply foam. The foam is blue and forms a good skin with a flexible slightly soft cure. I used around a fireplace to provide adhesion and insulation in a zone with modest heat exposure (50c max). Went on well and appears to be good for the job.

It did what it said on the bottle
5.0
June 26, 2025
Chris Shef Verified Purchase

Excellent - does what you expect and can reseal it for later

Great foam
5.0
June 5, 2025
Mish12 Verified Purchase

Great price needed for a job at home and available from my local store

B1 Fire resistant expanding foam.
5.0
March 13, 2025
Mohummed Inam Verified Purchase

Great air tight seal, B1 Fire resistance rating was very important to me.

Easy to use
5.0
March 5, 2025
Richc88 Verified Purchase

Does what it’s supposed to, I used separate gloves as I know the ones that come with the product aren’t great. I used the whole lot in one job so never had to reseal it, easy to control the output. Just watch for drips out the end afterwards

Acoustic insulation
5.0
January 4, 2025
Pub name Verified Purchase

Indeed it insulate the acoustics. It's a bit sticky.

Rubbish.
1.0
November 16, 2024
John2m Verified Purchase

Staff brilliant.
Used once followed the instructions, tried to use it a week later valve stuck solid .
Expensive mistake.

good product.
4.0
October 26, 2024
Enthusiastic DIYer No1 Verified Purchase

Works great, good that gloves are provided, blue foam, safety catch for the trigger broke off the first time I used the gun. How long are the contents good for whilst in storage after initial use ?

Good intumescent foam and doesn’t expand too much.
5.0
October 4, 2024
mkrdeeping Verified Purchase

Easy to use and can be re-used for a short time after first use. Doesn’t expand too much like some other foams and is a necessity for making a fire barrier where cables pass through walls etc.

Ok, but.
2.0
October 1, 2024
Citizen Verified Purchase

Fills gaps. Limited control of the 'rate of deployment' either it's on or off, so completely ran out in about 10 seconds. It also gets everywhere so you may need to tidy it up after applying. Expensive. Stinks of chemicals.

Never again
1.0
September 22, 2024
DIY boy 2 Verified Purchase

I've bought the same product last year as well. That time it worked. It was not easy to press the trigger that time as well, but it worked. However, yesterday I tried the same Soudal Genius Gun but it did not work at all. I've tried everything but the trigger did not work. I was so desperate to finish the work so I pressed the end of the trigger with the screw driver which worked. However, I was not able to keep pressing it while I was aiming it. I've lost £10 , plus 30 minutes to drive there and back, plus petrol and my time of trying to operate it. Never again

Excellernt product
5.0
September 16, 2024
Rural Hobbit Verified Purchase

Excellent product, easy to use and does what it says on the tin.

Does what it says and easy to use
5.0
August 28, 2024
Barrie 27 Verified Purchase

Easy to use -Does exactly what it says on the tin!

Foamtastic
5.0
August 18, 2024
Jack60 Verified Purchase

Really good stuff try it you’ll notice the difference 👍👍

Brilliant product
5.0
August 17, 2024
Christopher S Verified Purchase

I have used this numerous times to improve soundproofing of walls as i have renovated our house and it is brilliant. Simple to use, easy to keep clean and actually works in blocking sound and draughts

Does the job
5.0
August 2, 2024
rsitch Verified Purchase

Quick and easy to use. Not tested its ability to withstand fire though !

Great for fillling gaps and flame retardant too
5.0
July 28, 2024
Alletrope Verified Purchase

Great for fillling gaps and B1 flame retardant too

Great product
4.0
July 15, 2024
Elliot bb Verified Purchase

Great product good price, will buy again for sure.

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