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1-component expanding foam

1C assembly foam

Art.-no. 08921551

Prices for customers after login

1-component expanding foam

Art.-no. 08921551

Prices for customers after login



x1 pcs

Exclusively for trade customers

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1-component mounting and filling foam for single application
  • Outstanding adhesion to virtually all construction surfaces

  • Improved sound and heat insulation characteristics over mineral wool, cork and fibreglass

  • Quick to fully harden

  • Resistant to a large number of solvents, paints and chemicals

  • Resistant to ageing and not-rotting

Does not adhere to PE, PP, PTFE and silicone. Not UV-resistant.

The above application instructions are recommendations given on the basis of our own tests and experience. We recommend that you carry out your own tests before use. Due to the great variety of different applications and storage and processing conditions, we cannot guarantee a particular application result. We will not accept legal liability for any advice or technical information provided by our free customer hotline unless this advisory service and/or technical information is part of the contractually agreed performance owed by us, or the customer service employee acted willfully or intentionally. We guarantee the consistent quality of our products and reserve the right to make technical changes and improvements.

Product information

Würth Catalogue(X)

Catalogue page as PDF 1


Safety data sheet

Application area

Safe insulation, filling and insulating of window joints, roof finishing, door frames, pipe openings, joints, wall joints, roller shutter boxes, wall openings and cavities etc. Adheres to concrete, stone, hard PVC, metal and wood.


The surfaces must be clean, solid and free from dust and grease. Pre-treat highly absorbent surfaces. Adhesion surfaces must be moistened with water before the foam is applied.

Screw the enclosed adapter tube onto the valve and shake the can vigorously, with the valve facing downwards, approx. 30 times so that the contents of the can are well mixed and the foam quality is optimised. Only fill the joints or cavities to approx. 1/3 with foam because the foam will expand. Moisten again if several foam beads are applied. Immediately remove fresh foam splashes with PURLOGIC® Clean and remove foam residue that has already hardened with PURLOGIC® foam cleaner. Cut away excess, fully hardened foam with a knife.

Chemical basis

Moisture curing polyurethane prepolymer


Champagne coloured


25 kg/m³

Density conditions

in accordance with DIN EN ISO 845



Moulded density

25 kg/m³

Tack-free after

10 min

Conditions for being tack-free

at 20°C and 65% humidity with 30-mm adhesive line

Can be cut after

3 h

Conditions for ability to cut

at 20°C and 65% relative humidity at 30-mm adhesive line

Full resilience

24 h

Min. processing temperature

5 °C

Max. processing temperature

30 °C

Min. ambient processing temperature

0.01 °C

Min. surface processing temperature

5 °C

Max. processing temperature for can

0.01 °C

Min./max. temperature resistance

-40 to 90 °C

Max. short-term temperature resistance

120 °C

Heat conductance λ

0.01 W/(m*K)

Heat conductance λ conditions

in accordance with DIN 52612

Flexural strength

0.01 N/mm²

Conditions for flexural strength

in accordance with DIN 53423

Shear strength

0.01 N/mm²

Conditions for shear strength

in accordance with DIN 53427

Compressive strength

0.01 N/m

Compressive strength conditions

in accordance with DIN 53421

Breaking elongation

10 %

Breaking elongation conditions

in accordance with DIN 53571

Yield (volume) approx.

19 l

Conditions for yield

Foam yield (free foaming)


750 ml



Weight of content

10 g

Building material class

B3 - Of high flammability

Building material class conditions

in accordance with DIN 4102

Shelf life from production

12 Month

Conditions to maintain shelf life from production

at 20°C

Art.-no. Cust. Mat. No.

Hazardous Material

Product information

Würth Catalogue

Catalogue page as PDF  | 


Datasheets ()

CAD data  | 




Technical information