Wurth Bond and Seal Flexible PU Adhesive / Sealant WHITE 300ml

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Wurth Bond and Seal Flexible PU Adhesive / Sealant WHITE 300ml

Elastic PU adhesive and sealant for a wide range of applications

    • Chemical basis: Single component polyurethane
    • Density/conditions: 1.25 g/cm³ / prior to hardening, DIN 53479
    • Min./max. skin-formation time: 45-60 min
    • Min./max. skin-formation time /conditions: 45-60 min / at 23°C and 50% relative humidity
    • Full curing speed/conditions: 3 mm/d / 23°C and 50% relative humidity, moisture curing
    • Min. tensile strength: 1.8 N/mm²
    • Conditions for tensile strength: in accordance with DIN 53504
    • Min. longitudinal resistance to tearing: 6 N/mm
  • Conditions for resistance to tearing: in accordance with DIN 53515
  • Elongation at break/conditions: 500 % / in accordance with DIN 53504
  • Min./max. processing temperature: 5 to 35 °C
  • Max. short-term temperature resistance: 120 °C
  • Min. flashing point: 70 °C
  • Glass transition temperature/conditions: -45 °C / in accordance with DIN 53445
  • Max. change in volume: -5 %
  • Shelf life from production/conditions: 12 Month / at 10°C to 25°C
  • Silicone-free: Yes
  • Resistance against: Water, Lime water, Public sewage, Weak acids, Weak lyes, Salt water
  • Short-term resistance against: Fuels, Mineral oils, Animal fat, Animal oils, Vegetable fat, Vegetable oils

Bond and Seal For universal use

Outstanding adhesive strength on a wide range of materials and surfaces

Approved for use with foodstuffs (ISEGA certificate)

  • Harmless to humans in its hardened state
  • Suitable for adhering and sealing in food processing plants

Highly elastic

  • Can be used for joining different materials and materials of the same type
  • Compensates different material expansions
  • Dampens vibrations and noise

Long skin formation time

  • Allows complex components to be bonded and sealed
  • Also ideal for large surfaces
  • Joint parts can be repositioned

Can be sanded and painted over

Following skin formation, it can be mechanically machined and painted over without surface activation (perform preliminary tests to check paint compatibility).


Prevents metal corrosion



  • Not suitable for glass groove sealing or adhesive bonding on other transparent materials with risk of UV back reflection.
  • Direct exposure to sunlight can result in slight surface yellowing and crack formation.
  • Not suitable for expansion joints in construction applications.
  • PVC-based paints and paints that dry by oxidation (oil and alkyd resin-based paints) are not suitable for painting over the adhesive.
  • The use of Würth sealant smoothing agent can cause yellowing.
  • Caution: Contact with solvents or solvent residues should be avoided, in particular during processing and the curing phase. This can lead to permanent damage of the Bond + Seal.
  • Caution: In the case of high surface moisture, very wide adhesive bead application, and/or cavities/air pockets created, backfill foams in the application, there is a risk of bubble formation in the adhesive compound.

Wurth Bond and Seal Flexible PU Adhesive / Sealant WHITE 300ml

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