Glue Foam 52

Very low expansion polyurethane gun foam for welding & filling

Suitable for plasters, bricks, asphalt, wood, gypsum, cardboard, and metallic surfaces. It is used for welding polystyrene thermal insulation boards on concrete, plaster, and masonry surfaces.


  • Excellent adhesion on most materials
  • High thermal and acoustic insulation
  • Low expansion
  • For interior and exterior use
  • Easy application



General Information

KRAFT GLUE FOAM 52 is a one-component, solvent-free polyurethane foam of low expansion, for professional use. The glue dries when exposed to air humidity. It is used for welding polystyrene thermal insulation boards on concrete, plaster and masonry surfaces. It features low expansion, and it is easy to use and apply. It also provides excellent adhesion on plasters, bricks, mortars, asphalt, wood, hardboard, gypsum, cardboard, and metallic surfaces. It is suitable for both interior and exterior use. When hardened it withstands temperatures between -40°C and +90°C.

How to Use

  • The surface must be clean and free of dust.
  • Before use, the canister must be kept at room temperature for 12 hours at least. Shaking is also required for about 15 seconds before use.
  • Apply using the dedicated professional gun for PU foams. Before use, grease the gun with lubricant or with Teflon spray. Place and screw the glue canister on the gun. Adjust the flow rate by twisting the screw at the back of the gun.
  • Apply the glue around the perimeter of the thermal insulation board, leaving a 5cm margin from the edges, in consecutive stripes of 10-12 mm width, keeping a 30 cm distance between them.
  • After use, twist the screw clockwise at the back of the gun until the flow stops. The dried residues can be removed mechanically. Attach a prepacked -in a canister- PU solvent on the gun and spray until all foam residues have been removed.
  • Never leave the gun unattached to the canister or uncleaned.
  • Store the product in shaded areas and at a temperature of 5°C to 35°C in an upright position. The shelf life of the product is 18 months when stored as recommended, in the original sealed packaging.

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