Wurth Bond and Seal Flexible PU Adhesive / Sealant 300ml

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Colour: Black
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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

White 08901001

Grey 08901002

Black 08901003

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).
  • Non-corrosive
  • Prevents metal corrosion
  • Low-odour
  • Silicone-free
  • Notice
  • 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.
Application area
  • For a range of bonding and sealing tasks
  • Suitable for adhering and sealing in food processing plants
  • For the permanently elastic sealing of spot weld seams

The application surfaces must be clean, dry and free of grease. For pre-treatment, please refer to the optimisation table in the technical data sheet.

Cut off the thread cap, screw on the nozzle and cut it to the required width. Apply the adhesive using a suitable application gun. A minimum adhesive layer thickness of 3 mm is recommended to harness the benefits of thick-coat bonding.

Technical Data sheet

For more information, please refer to the technical data sheet.


300 ml



Chemical basis

Single component polyurethane


Black / Grey /White


1.25 g/cm³ / prior to hardening, DIN 53479

Shore hardness A/conditions

40 / in accordance with DIN 53505

Full curing speed/conditions

3 mm/d / 23°C and 50% relative humidity, moisture curing

Min./max. processing temperature

5 to 35 °C

Min./max. temperature resistance

-40 to +90 °C

Short term temperature resistance max. /conditions

120 / after 8 hours

Min. tensile strength

1.8 N/mm²

Min. combined tension and shear resistance

1 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

Max. change in volume

-5 %

Glass transition temperature/conditions

-45 °C / in accordance with DIN 53445

Short-term resistance against

Mineral oils
Animal fat
Animal oils
Vegetable fat
Vegetable oils

Shelf life from production/conditions

12 Month / at 10°C to 25°C

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