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Best Expanding Foams - Holiday Sale

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Last Updated - 16.12.2025

Best Choice

01

PRITEX

PRITEX Building Foam Mega Set of 12 x 750 ml Gun Foam Includes 2 x Gun Cleaner 500 ml and Foam Gun - Mounting Foam for Filling, Insulating & Sealing

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9.8

Exceptional

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Product details: 12 x 750 ml gun foam, 2 x 500 ml gun cleaner and a foam gun. 750 ml of building foam yield a foam yield of up to 45 litres (free foam)
Practical accessories: the gun is made of metal and has a rubberised handle for optimum grip. The gun cleaner is perfect for rinsing PU mounting guns and removing fresh PU foam dirt
For various surfaces: the foam adheres excellently to concrete, plaster, masonry, wood and many plastics (polystyrene, PU hard foam, polyester, hard PVC, except PE/silicone) as well as on damp surfaces

85,95 €
Value for Money

02

Soudal

12 x Soudal Soudafoam 2K, 400 ml, building material class B2, aerosol can - ready-to-use, two-component frame foam for quick and secure installation of door frames and window elements

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9.7

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

The high dimensional stability of the PU foam prevents shrinkage and re-stretching, allowing for durable, reliable application - ideal for precise work
Thanks to the outstanding insulation value for heat and sound insulation as well as excellent adhesive properties, ideal for filling cavities, sealing all openings in the roof construction as well as optimising insulation in cooling systems
Due to the fast curing and high adhesion, it is particularly suitable for mounting windows and doors as well as for placing bath and shower tray supports

66,00 €
03

Pattex

Pattex 1996887"Classic" Assembly Foam, White, 500 ml

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9.6

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Intended use: filling and insulating door and window frames; filling and insulating wall openings and cavities, e.g. pipe feedthroughs, roller shutter boxes, etc.
Insulation of components against heat, cold, sound and draughts
Foam volume: 500 ml makes 22 litres; temperature resistance: -40 °C to + 110 °C
Fast curing; can be cut after 1 hour; good dimensional stability: no volume shrinkage and only low post-stretching
Excellent adhesion to almost all building surfaces; resistant to ageing (not UV resistant)

9,62 €
04

fischer

fischer Rapid Installation Foam PU S 750, Construction Foam for Backfilling, Insulation and Damping, Polyurethane (PU) Foam, incl. Instant Use Adaptor 750 ml

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9.5

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Ready for use: The quickly-mounted adapter allows for immediate use. No additional processing devices are required
Contents: 1 x fischer foam PU S 750 B2 (750 ml) with an adapter, without protective gloves, only suitable for commercial use
Building materials: Adheres to all standard building materials, e.g. Concrete, anodised layer, plasterboard, wood, sand-lime brick, PVC materials (including resins with high degree of polymerisation – HPVC), masonry, metals, plaster
Applications: For insulating and filling window connection joints around window sills as well as roller shutter boxes, finished elements, wall connections, wall openings and cavities and much more
All-rounder: The rapid installation foam with proven high level of sound insulation and water pressure resistance is suitable e.g. for window joints or for bonding concrete shaft rings

13,59 €
05

BOSTIK

BOSTIK P741 Mounting B2 – Single-Component Polyurethane Foam, for Mounting, Gluing, Insulating, Filling, Good Adhesion Properties, Can Be Used Immediately, 500 ml

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9.3

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Extremely durable: insoluble after curing, waterproof, rot resistant and permanently elastic.
Can be used immediately: can be used immediately without special preparation, processing using adapter tubes.
Can be plastered, pasted, putty or painted over.
Box contents: 1 x BOSTIK P741 mounting B2, capacity: 500 ml, colour: beige, item number: 30613651

9,71 €
06

Soudal

Soudafoam B2 Gun Foam Mounting Foam PU Foam Set of 6 with Cleaner 500 ml

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9.2

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Excellent adhesion to almost all building surfaces

39,86 €
07

Sika

SIKA - Mounting foam - SikaBoom-163 Evolution white - PU foam for filling cavities and spaces - 300 ml incl. adapter

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9.1

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Sound-insulating: perfect for joints on window and door frames, for effective sound insulation, as well as thermal insulation can be used as insulation foam
Safety: the PU foam has a very low content of free monomeric isocyanates, EMICODE EC1 Plus certified (very low emission)
Ready to use: 1 component and therefore very easy to use polyurethane based construction foam
Modelable: after curing, the mounting foam can be cut, sanded and painted over
Insulating, filling: ideal for cavities and gaps indoors and outdoors, effective against cold and draughts, can also be used as a mounting foam for windows

14,39 €
08

Soudal

Soudafoam B2 Pistol Foam Set of 6 with Foam Gun Compact + Cleaner

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9.0

Excellent

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Main highlights

Soudafoam B2 Pistol Foam Set of 6 with Foam Gun Compact + Cleaner

44,90 €
09

Soudal

Soudafoam 2K B2 400 ml (adapter attachment) economy set (3)

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8.8

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

You will receive a set consisting of 3, 6, 9 or 12 bottles of Soudafoam 2K B2 400 ml
With very good sound and heat insulation, excellent dimensional stability and extreme adhesion.
Soudafoam 2K is a ready-to-use, two-component, self-expanding polyurethane foam
Building material class B2 or B3 (Austria)
- Attention: adapter attachment (no foam gun required)

20,82 €
10

Uncosinb

Foam Bags for Shipping 8 Pack Handy Foam Room Temperature Expansion Foam Packaging Bags Instant Pack Quick Expandable Packaging Filler - Packaging and

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8.7

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

【Superior Product Protection】The upgraded packaging foam protects small and medium items of almost any shape and weight, virtually eliminating 99% of shipping damage during transportation. Our expanding foam bags are widely used in logistics transport to protect high-quality, fragile items, etc.
【Instructions】: Spread the bag flat --- Squeeze the liquid in range A to area B --- Press to mix the liquid --- Wait for the liquid to expand and break through the A/B area, then quickly and evenly distribute the liquid into the whole bag (in this step and next steps you need to be faster as the liquid expands and becomes firm) --- Put the bag quickly into the box and place the articon the bag and wait for it. Completely new and shape full protection
【Fast Expansion】: Our expanding mailing foam expands in seconds to form form form fitting protective foam cushions with high efficiency. Anyone can become a packaging expert - instantly, confident, professional, requires no additional equipment.
【8 Pack】: We provide 8 advanced foam packaging bags, enough for you to pack at least 4 packages, saving you the trouble of repeated purchases. #10 (14" x 16"), recommended for box size 8" x 8" x 8". (If the box you use is relatively large, two or more foam bags can be used at the bottom and top of the box to expand and solidify until the items are fully packaged.)
COMPACT & CONVENIENT This stretchy foam packaging bag is quite thin and lightweight, folds up like a small wallet, easy to carry. Compared to traditional mailing foam, it takes up little space and is completely mobile, so you can use it anywhere.

20,62 €