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Desmomelt® U 320

Aliphatic high-molecular-weight polyester-polyurethane adhesive raw material. Desmomelt® U 320 is a solid raw material for the formulation of non-yellowing, thermally activated adhesives. Desmomelt® U 320 is particularly well suited for applications with low thermal activation temperatures as e.g. in automotive trim, textile, footwear and furniture applications. Desmomelt® U 320 can be used as a hotmelt applied as a filament, foil or powder, as well as a raw material for non-yellowing solvent-based contact and/or heat activated adhesives.

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Product Types

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Material

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General Characterization

Aliphatic high-molecular-weight polyester-polyurethane adhesive raw material.
Desmomelt® U 320 is a solid raw material for the formulation of non-yellowing, thermally activated adhesives. Desmomelt® U 320 is particularly well suited for applications with low thermal activation temperatures as e.g. in automotive trim, textile, footwear and furniture applications. Desmomelt® U 320 can be used as a hotmelt applied as a filament, foil or powder, as well as a raw material for non-yellowing solvent-based contact and/or heat activated adhesives.

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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Packaging Type

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Technical Properties & Datasheets

Characteristics

Property Name Test Method Unit Value
Recommended processing temperature for automated application °C 200 - 260
Heat resistance °C approx. 50
Minimum extrusion temperature °C 120
Hot tack life (Depends on application conditions) min 2 - 5
Density ISO 1183 g/cm^3 approx. 1.2
Minimum activation temperature DIN EN 12961 °C 55 - 65

Specifications

Property Name Test Method Unit Value
Solution viscosity 15 w% in butanone-2 (MEK) / water (95:5 w/w) at 23°, (30 rpm) M001 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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