PHS Airtight Foam

PHS Airtight Foam is a gun grade expanding foam formulated to seal construction joints.

PHS Expanding Foam Icons

Acoustic Insulation
EN ISO717-1: 62dB

Airtight DIN 18542
<0.02 m³/h/m² at 100 PA

Tensile Strength
107 kPa (wet), 90 kPa (dry)

FEICA 750mm Can Yield, TM1007-2013
36-40 Litres

Thermal Conductivity
EN 12667:2001 : 0.039 (W/(m-K))

Water Vapour Transmission (sd)
EN 12086: 2023 : 0.31m



SKU: AR9065A1


PHS Airtight Foam

PHS Airtight Foam is and airtight expanding foam, specially developed to form an airtight, thermal and sound insulating interface between construction components.

• Heat Insulating
• Sound Insulating
• Highly Elastic
• Airtight


• Adheres to all common building materials, with the exception of polyethylene, silicone, oils and greases, mould release agents, etc.
• Can be processed at temperatures from +5°C to +30°C.
• Hardened foam is elastic, predominantly closed-cell, rot-proof, moisture-proof, temperature-resistant from -50°C to +100°C.
• Resistant to aging, but not to UV radiation.
• Offers excellent thermal and sound insulation values.

• The adhesive surfaces must be free of dirt, dust and grease.
• Slightly moisten the building connection joint with a water spray.
• The optimal processing temperature is +20° C to +25°C.
• Shake the can thoroughly before use.
• Fill the joint no more than halfway, because the fresh foam expands to 2-3 times the initial volume.
• Foam layers thicker than 5cm in several steps and allow each layer to harden.
• The curing of the foam is supported and accelerated by additional moisture in the substrates (moistening of the substrates).
• For all joints, moistening is recommended after each layer of foam.
• Insufficient supply of moisture or excessive moisture can lead to unwanted shrinkage of the foam.
• Never press the partially hardened foam into the joint.
• Remove fresh foam stains immediately with foam cleaner. This can only be done in the tack-free period. Hardened foam can only be removed with special cleaner or mechanically.

Technical Details

Application Area: Up to 45 meters
Joint-cross section approx. 10×1.5cm: Up to 13m
Cellularity: Good
Tack free time: Approx. 5-10min
Can be cut according to (20mm strand): Approx. 10-12min
Cured after (20mm strand): Approx. 12h
Processing temperature: +5C to +30C
Optimal processing temperature: +20C to +25C
Tensile strength (DIN 53430): 5-6N/cm2
Stretching (DIN 53430): Approx. 30%
Shear strength (DINF 53427): 3-4N/cm2
Strain at 10% compression (DIN 53421): 1-2N/cm2
Water absorption (DIN 53433): 1.4Vol.-%
Thermal conductivity (DIN 52612): 0.035W/mK
Air permeability: airtight up to 1000 Pa
Temp. resistance of curesd strand: -50C to +80C
Bonding: -50C to +100C
Acoustic isolation: Up to 62dB
Building materials class (DIN 4102 part 1): B3
Shelf life: 12 months


 • PHS Spray Sealing Foam is suitable for windows, attic conversion, doors, walls, corner joints, air conditioning and ventilation systems, pipelines, wooden structures.
• Designed to fill and seal around gaps, cracks and penetrations in the building envelope to stop air infiltration, maintain thermal integrity and reduce the transfer of noise.
• Very versatile, therefore it can be used on various substrates like masonry, pla- ster, wood, concrete, aerated concrete, bricks, clinker, plasterboards, fiberbo- ards, various plastics, corrosion protected metals, styrofoam, various other in- sulating materials, rigid foam panels, ceramics, tiles, stone.


Product Code:  Sizes:  Barcode: 
 AR9065 750ml Can 5391536370237