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Desmomelt® U 320 P

Aliphatic high-molecular-weight polyester polyurethane. Desmomelt® U 320 P is a solid, non-yellowing, heat activation adhesive raw material in the form of granules and is therefore particularly suitable for thermoplastic processing (films, filaments, coextrusion). Desmomelt U 320 P is well suited for applications with low thermal activation temperatures, such as automotive, textile, footwear and furniture.

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General Characterization

Desmomelt U 320 P is an aliphatic high-molecular-weight polyester polyurethane. It is a solid, non-yellowing, heat activation adhesive raw material in the form of granules and is therefore particularly suitable for thermoplastic processing (films, filaments, coextrusion). Desmomelt U 320 P is well suited for applications with low thermal activation temperatures, such as automotive, textile, footwear and furniture.

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.

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Technical Properties & Datasheets

Characteristics

Property Name Test Method Unit Value
Minimum extrusion temperature °C 120
Heat resistance °C approx. 50
Density g/cm^3 approx. 1.2
Hot tack life (Depends on application conditions) min 2 - 5
Minimum activation temperature °C 55 - 65
Recommended processing temperature for automated application °C 200 - 260

Specifications

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

Downloads

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

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