• Adhesives

Desmocoll® 540/4

Predominantly linear, flexible hydroxyl polyurethane with a exremly high crystallisation rate. It has outstanding adhesion on PVC substrates, high green strength and heat resistance of the bonds.

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Product Types

  • PU resin


Solventborne, Heat activated

General Characterization

Predominantly linear hydroxyl polyurethane.
Desmocoll® 540/4 is a flexible polyurethane with an extremely high crystallization rate and very low thermoplasticity. It is characterised by its high green strength and the heat resistance of the bonds.
Desmocoll® 540/4 has outstanding adhesion on PVC substrates and high resistance to the most commonly used PVC plasticizers.

Storage Conditions

- Storage in original sealed Covestro containers.

Recommended storage temperature: 10 - 25 °C.

- Protect from direct sunlight, moisture, heat and foreign material.


No data available

Packaging Type

No data available

Technical Properties & Datasheets


Property Name Test Method Unit Value
Solution viscosity, 15 % inbutanone-2 (MEK) at 23 °C, Haake DIN EN ISO 3219/A.3 mPa*s 1,800 ± 300


Property Name Test Method Unit Value
Density DIN EN ISO 2811 g/ml approx. 1.2
Minimum activation temperature DIN EN 12961 °C approx. 60
Heat resistance ASTM D 816 °C approx. 80
Hot tack life DIN EN 12961 min approx. 4
Crystallization DIN 53 505 min approx. 10
Hydroxyl content DIN 53 240 % < 0.1
Bondability of materials containing plasticizers DIN EN 15307 excellent


Technical Data Sheet
Safety Data Sheet
No direct download available, please visit www.productsafetyfirst.covestro.com