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ACROBOND PU 253

Glue PU BI Component

Product code : PU 253

Applications Two-component polyurethane structural adhesive, for bonding traditional sandwich panels or aluminium honeycomb panels. This liquid glue has a very firm film and is particularly suitable for composite panels based on pre-painted metal coils, polyester laminates, thermal insulation (rigid PUR foam, sanded expanded or extruded polystyrene, mineral wool), plywood and certain rigid or thermosetting thermoplastic materials;The main applications are in transport, Railway, marine and automotive equipment, refrigerated vehicles, construction, cold room or cleanroom panels as well as in a wide range of industrial fields. According to LNE tests, Acrobond® PU 253 + Acrocure ISO 400 meet the IMO Resolution A.653 (16) of the International Maritime Organization; see Bureau Veritas Marine Division certificate N° 30507/A0 EC Characteristics Liquid polyurethane resin that can only be used with its isocyanate hardener Pot life 60 minutes Properties Liquid structural adhesive, 2-component PUR, rigid film. Very firm and cohesive. Excellent ageing and thermal resistance within a temperature range between -40°C and +80°C continuously, +120°C at peak over a short period of time.

Contact us by phone : +33(2) 41 56 08 94

Characteristics

  • Chemistry / Technology
  • Chemical base Resin: Polyol + additives; ISO 400 Hardener: Isocyanate + Additives
  • Color Light beige for resin, brown for hardener
  • Consistency liquid, easily applied by dosing / mixing machines, roller gluing machine, spatula or by casting.
  • Density ~ 1,65 g/cm3 p for resin, ~ 1,23 g/cm3 for hardener
  • Viscosity ~ 25000 mPa.s for resin, ~ 8000 mPa.s mixed with hardener
  • Open time ≤ 60 minutes with the standard Acrocure ISO 400 hardener, ≤ 70 minutes with Acrocure ISO 50.
  • Pressing time ≥ 8 heures at +23°C
  • Mix Ratio Weight = 5:1 Volumetric = 3.7:1
  • Elongation at break Up to 18 N/mm² or MPa at room temperature for specimens made of pre-painted epoxy aluminium or cataphoresis sheet.
  • Hardness class 83 Shore D after 7 days
  • Storage condition +10°C to +25°C
  • Packaging

    Buckets of 5, 10 and 30 kg net, drums of 300 kg net in standard packaging for resin. 1, 5, 6 and 30 kg net canisters, 250 kg net drums in standard packaging for the hardener. Pre-dosed kits available on request.

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    Produits complémentaires

    ACROBOND PU 221 D3
    Two-component polyurethane resin specially designed for densification/edging of sandwich panels Aluminum honeycomb.

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