PVAC DISPERSION ADHESIVES

Water-based polyurethane adhesives are mainly used for laminating 3D molds with thermoplastic decorative films, textiles, and other surfaces. The lamination takes place in a so-called hot sealing process.

First, the PUR dispersion is sprayed onto one side of one of the materials to be bonded, usually the most absorbent one, such as wood or wood-based materials like particle boards. This is where the hygroscopic properties of wood-based materials come in useful: they help the adhesive components to penetrate deeply into the material, thus generating the best bonding results.

The PUR dispersion is then usually left to dry off completely. Afterwards, the material to be bonded and the PUR-pre-coated surface are joined using a heated vacuum and/or membrane press. Heat and pressure reactivate the pre-dried adhesive, causing the decor material to adapt and bond to the 3D surface of the workpiece.

The resulting bonds are extremely resilient to heat and moisture. This heat sealing process has been a standard in furniture panel and automobile mold manufacturing for many years. KLEIBERIT 1C or 2C PUR dispersions can be used, depending on the individual needs and specifications.

Industries

Furniture making

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©Christian Hillebrand - stock.adobe.com


- 3D thermoforming lamination of furniture panels for use in bathrooms, kitchens, living rooms and bedrooms

Building and construction elements

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- 3D thermoforming door lamination

Automotive

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© Cyprych Kalienke


- arm rests - windscreen pillars - door side trim panels - backrests

Products

Furniture / doors

KLEIBERIT 430.7.00 1C PUR dispersion adhesive
  • single-component, with integrated hardener
Base
PUR
Certificates
Applications
  • 3D film lamination for all standard films
KLEIBERIT 431.7.00 1C PUR dispersion adhesive
  • THE high-gloss expert
  • suitable for automated spraying systems
Base
PUR
Certificates
  • FIRA certified according to BS 6222 Part 3 1999
Applications
  • 3D film lamination for high-gloss and thin films
KLEIBERIT 433.2.00 Supratherm - 2C PUR dispersion adhesive
  • all-round product for all standard deep-drawing processes
Base
PUR
Certificates
Applications
  • 3D film lamination for all standard films, usable with or without a hardener
KLEIBERIT 436.3.00 2C PUR dispersion adhesive
  • laminating dispersion for temperature-sensitive materials (for deep-drawing)
Base
PUR
Certificates
Applications
  • 3D film lamination for all standard films, usable with or without a hardener. Very high heat resistance

Automotive

KLEIBERIT 457.7.00 special dispersion
Base
PUR
Certificates
Applications
  • laminating vehicle interiors
KLEIBERIT 457.9.00 special dispersion
Base
PUR
Certificates
Applications
  • laminating vehicle interiors

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