Gun Foam Wurth

1C gun foam B3

1C gun foam B3: used for installation and filling foam for gun application. Excellent adhesion to virtually all construction substrates (with the exception of PE, PP, PTFE and silicone). Better sound and heat insulation properties than mineral wool, cork and fibreglass.

Dimensionally stable

No volume shrinkage and only minimal post-expansion once the product has fully hardened.

Quick to fully harden

Fine-celled and uniform foam structure

Resistant to ageing

Resistant to a large number of solvents, paints and chemicals

Notice

Primer should be applied to porous and absorbent substrates. PURLOGIC® TOP can be applied with the PURLOGIC® Xpress, art. no. 08911524 and PURLOGIC® COMBIpress, art. no. 08911526 foam guns. Other guns are not compatible.

The usage instructions are recommendations based on the tests we have conducted and on 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 ensure the consistent quality of our products. We reserve the right to make technical changes and further develop products.

Application area

Secure insulating and filling of window joints, pipe openings, joints, wall joints, wall openings and cavities, such as wall openings, roof finishings, pipe ducts, roller shutter boxes etc. Adheres to concrete, stone, hard PVC, metal and wood. Does not adhere to polyethylene, silicone, PTFE and grease.
Instructions

Shake can vigorously 20 times before use. Substrates must be clean, solid and free from dust and grease. Pre-treat highly absorbent substrates. Adhesion surfaces must be moistened with water before the foam is applied. Moisten again if several foam beads are applied. Screw the can all the way into the gun can support - do not screw too far or tilt. Foam continues to expand after application. Immediately remove splashes of foam with PURlogic Clean, art. no. 0892160. Thoroughly clean the gun and valve after use. Always leave the open can screwed onto the gun.

Chemical basis

Moisture curing polyurethane prepolymer

Colour: Yellow

Smell/fragrance: Characteristic

Moulded density: 25 kg/m³

Conditions for moulded density: in accordance with DIN EN ISO 845 (average)

Tack-free after: 7 min

Conditions for being tack-free: at 20°C and 65% humidity with 30-mm adhesive line

Can be cut after: 30 min

Conditions for ability to cut: at 20°C and 65% relative humidity at 30-mm adhesive line

Final spreading possible after: 2 h

Conditions for final spreading: at 20°C and 65% relative humidity at 30-mm adhesive line

Full resilience: 12 h

Conditions for full resilience: at 20°C and 50% relative humidity

Min. processing temperature: 5 °C

Max. processing temperature: 30 °C

Min. surface processing temperature: 5 °C

Max. surface processing temperature: 35 °C

Min. temperature resistance: -40 °C

Max. temperature resistance: 90 °C

Building material class: B3 - Of high flammability

Building material class conditions: in accordance with DIN 4102

Heat conductance λ: 0.032 W/(m*K)

Heat conductance λ conditions: in accordance with DIN 52612

Compression strength: 0.3 N/mm²

Compression strength conditions: in accordance with DIN 53421

Conditions for acoustic insulation of joints: in accordance with DIN 52210

Acoustic insulation for 10 mm-wide joint: -1 dB

Acoustic insulation for 20 mm-wide joint: -6 dB

Ultraviolet resistance: No

Breaking elongation: 25 %

Breaking elongation conditions: in accordance with DIN 53571

Flexural strength: 0.7 N/mm²

Conditions for flexural strength: in accordance with DIN 53423

Shear strength: 0.17 N/mm²

Conditions for shear strength: in accordance with DIN 53427

Yield (volume) approx.: 40 l

Conditions for yield: Foam yield (free foaming)

Contents: 750 ml

Container: Can

Weight of content: 735 g

Shelf life from production: 12 Month

Conditions to maintain shelf life from production: at 20°C