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FM365
B3 Expanding Foam Max

FM365 is a rapid curing, high yield, one component gun grade expanding polyurethane foam that is suitable for general gap filling, bonding and insulation applications.

Usage/Purpose

FM365 is suitable for general gap filling, bonding and insulation applications. These include the perimeter sealing and fixing of windows and doors, sealing of non-fire rated service penetrations and sealing around insulation panels.

  • Ideal for filling, sealing and insulating of joints and gaps in a variety of building and construction applications
  • High yield application – joint only requires filling to 60%, prior to post-expansion
  • Rapid cure formulation – foam is tack free within 8 minutes, and can be cut or trimmed within 45 minutes
  • Forms a strong bond to concrete, brickwork, stone, plaster, wood, fibre concrete, metal, PVC and polystyrene

Usage Guidelines

  • Shake the canister vigorously at least 20 times. Remove the protective cap and screw the gun carefully onto the canister. 
  • Invert can and direct nozzle into gap, pressing gently on the trigger to establish the correct flow rate.
  • Joints should be underfilled to allow for post expansion of the foam. Fill to approximately 60% of joint depth for optimum results. 
  • For best results always work with the canister in a vertical position and keep the valve pointed downwards.
  • On horizontal surfaces, always work away from the exuded bead and on vertical applications, start at the bottom, working upwards.
  • On deep joints, apply in layers, waiting until each layer has skinned and partially cured before applying the next.
  • Applying a light misting of clean water before applying each layer before subsequent application will assist adhesion and cure speed.

Technical data

PropertyTest MethodResults
Composition Polyurethane foam
Fire ClassificationDIN 4102-1B3
YieldFEICA TM100340 litres
Water AbsorptionEN 16090.2 kg/m²
DensityLAB 01510  - 15 kg/m³
Tack Free TimeFEICA TM 10148 minutes
Cutting TimeFEICA TM 100545 minutes
Loading Time 24 hours
Compressive Strength (10%)FEICA TM 101121.7 kPa wet
  23.5 kPa dry
Elongation at BreakFEICA TM 101869% wet
  35% dry
Thermal ConductivityEN 1266736 mW/m.K
Application TemperatureCanister:+20°C
 Ambient:+5°C to +35°C
Service Temperature Short Term:  -40°C to +130°C 
  Long Term:  -40°C to +90°C
StorageStore in shaded dry conditions between +10°C and +25°C.  Store canisters upright. The product is contained in a pressurised container - observe storage instructions and do not apply heat.
Shelf Life18 months when stored as recommended in original unopened containers.
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