1-component gun foam PURLOGIC® Flex
1-component gun foam PURLOGIC<SUP>® </SUP>Flex - 1
1-component gun foam PURLOGIC<SUP>® </SUP>Flex - 2

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1-component gun foam PURLOGIC® Flex

1C premium foam for elastic joint insulation

  • Chemical basis: Single component polyurethane
  • Colour: Pebble grey
  • Smell/fragrance: Characteristic
  • Moulded density: 24 kg/m³
  • Cell structure: Medium - fine
  • Cell structure conditions: tested in accordance with Würth test methods
  • Tack-free after: 6 min
  • Conditions for being tack-free: at 23°C and 50% humidity
  • Can be cut after: 20 min
  • Conditions for ability to cut: at 23°C and 50% relative humidity
  • Full resilience: 12 h
  • Conditions for full resilience: at 23°C and 50% relative humidity
  • Min. processing temperature: 5 °C
  • Max. processing temperature: 25 °C
  • Min. ambient processing temperature: -15 °C
  • Max. ambient processing temperature: 25 °C
  • Min. surface processing temperature: -15 °C
  • Max. surface processing temperature: 25 °C
  • Min. processing temperature for can: 0 °C
  • Min. temperature resistance: -40 °C
  • Max. temperature resistance: 90 °C
  • Building material class: B2 - Normally inflammable
  • Building material class conditions: in accordance with DIN 4102
  • Heat conductance λ: 0.034 W/(m*K)
  • Heat conductance λ conditions: in accordance with DIN 52612
  • Water absorption (%): 0.3 Vol-%
  • Min. tensile strength: 5 N/cm²
  • Conditions for tensile strength: in accordance with DIN 53571
  • Acoustic insulation for joints: 60 dB
  • Conditions for acoustic insulation of joints: with 10-mm and 20-mm wide joint
  • Ultraviolet resistance: No
  • Min. breaking force: 20 N
  • Yield (volume) approx.: 18 l
  • Conditions for yield: at 23°C and 50% humidity, in released form
  • Contents: 500 ml
  • Container: Can
  • Number per pallet: 825 PCS
  • Weight of content: 581 g
  • Resistance against: Aging
  • HCFC-free: Yes
  • CFC (fuel gas) free: Yes
  • HFC-free: Yes
  • Shelf life from production: 12 Month
  • Conditions to maintain shelf life from production: at 20°C
  • Sustainability: Low-pollution

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You can refine your search by selecting different attributes

Art.-no. Chemical basis Colour Smell/fragrance Moulded density Quantity PU
Single component polyurethane Pebble grey Characteristic 24 kg/m³

Packaging unit

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Structure of our article number

The article number is made up of the following: VVVVAAABBB
VVVV = 4 digits for prefix number (please note that the first digit is currently always 0)
AAA = 3 digits for dimension part 1
BBB = 3 digits for dimension part 2

Example article number structures:
Example 1: Screw with dimensions of 4x10 mm:
00574 10 (2 spaces between the 4 and the 10)

Example 2: Screw with dimensions of 10x20 mm:
005710 20 (1 space between the 10 and the 20)

Example 3: Flat washer with an internal diameter of 6 mm:

Information on price display

Price per packaging unit (PU):
The displayed price is always in line with the displayed packaging, if the PU is 250 the price for 250 units, if the PU is 300 the price for 300 units.

Price with price key representation (PSL):
The price always applies to a quantity ruled through the price key:
Price for 1 unit
Price for 100 units
Price for 1000 units


The quantity shows the number of pieces or units of measure contained in the order or delivery for the respective article.
In contrast to sales packaging and secondary packaging, the disposal costs for chemical-technical products are shown separately. The breakdown of the individual costs can be found on the relevant products and also in the shopping cart, as well as in our General Terms and Conditions (GTC).
Art.-no. Cust. Mat. No.

Hazardous Material

Product information

Würth Catalogue

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Technical information

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Recommended by experts and leading window manufacturers

Extremely high degree of elasticity

  • Extremely flexible, thereby significantly preventing the risk of a break in the foam bead. (Approx. 3 times the flexibility of commercially available PU foams).

  • Prevents heat bridges

Suitable for use in winter

  • Down to -15°C surface and ambient temperature

  • Down to 0°C can temperature

  • Even elastic at minus temperatures

Tested product features

  • Component testing

  • Joint sound insulation

  • Thermal conductivity

  • Air permeability

  • Water vapour permeability

  • Tested energy-saving properties

  • General test certificate issued by construction authorities

  • EMICODE-certified

Fine-celled and uniform foam structure

Resistant to ageing

High degree of emptying of residual product


Adheres to concrete, stone, hard PVC, metal and wood. Does not adhere to polyethylene, silicone, PTFE and grease. PURLOGIC FLEX can be applied with PURLOGIC Xpress and PURLOGIC COMBIpress. Primer should be applied to porous and absorbent surfaces. Unhardened foam must not come into contact with wet adhesive.

Perimeter sealing systems according to ift certification programme QM360: 2014, Reg. no. 188 7050098

EMICODE EC1plus: Very low emissions: The EMICODE classification system distinguishes the environmental and health compatibility of construction products. The lowest-emission products bear the EC1plus mark.

The usage instructions are recommendations based on the tests we have conducted and our experience; carry out your own tests before each application. Due to the large number of applications and storage and processing conditions, we do not assume any liability for a specific application result. Insofar as our free customer service provides technical information or acts as an advisory service, no responsibility is assumed by this service except where the advice or information given falls within the scope of our specified, contractually agreed service or the advisor was acting deliberately. We guarantee consistent quality of our products. We reserve the right to make technical changes and further develop products.