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Desmomelt® U 320 M

Aliphatic high-molecular-weight polyester polyurethane. Desmomelt® U 320 M is a fine powder for the production of non-yellowing, thermally activated hot melt adhesives. Desmomelt® U 320 M is well suited for applications with low thermal activation temperatures, such as automotive, textile, footwear and furniture applications. With Desmomelt® U 320 M, fast and environmentally friendly lamination processes can be realized, e.g. by powder scattering. Desmomelt® U 320 M has very good adhesion to textile substrates and to a variety of other materials such as soft PVC, rubber, wood, polyurethane elastomers.

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General Characterization

Aliphatic high-molecular-weight polyester polyurethane. Desmomelt® U 320 M is a fine powder for the production of non-yellowing, thermally activated hot melt adhesives. Desmomelt® U 320 M is well suited for applications with low thermal activation temperatures, such as automotive, textile, footwear and furniture applications. With Desmomelt® U 320 M, fast and environmentally friendly lamination processes can be realized, e.g. by powder scattering. Desmomelt® U 320 M has very good adhesion to textile substrates and to a variety of other materials such as soft PVC, rubber, wood, polyurethane elastomers.

Storage Conditions

Recommended storage temperatures: Temperatures higher than 30 °C should be avoided. Temperatures above 45 °C will lead to caking.
Protect from direct sunlight, heat, moisture and foreign material.

Sampling

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Technical Properties & Datasheets

Characteristics

Property Name Test Method Unit Value
Density ISO 1183 g/cm^3 approx. 1.2
Minimum activation temperature DIN EN 12961 °C 55 - 65
Heat resistance °C approx. 50
Hot tack life (Depends on application conditions) min 2 - 5

Specifications

Property Name Test Method Unit Value
Solution viscosity 15 w% in butanone-2 (MEK) / water (16:1 w/w) at 23°C, (30 rpm) M001 mPa*s approx. 100
Sieved over µm 500

Downloads

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

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