Desmomelt® U 320 F
Aliphatic high-molecular-weight polyester polyurethane. Desmomelt® U 320 F is a particularly fine powder for the production of non-yellowing, thermally activated hot melt adhesives. Desmomelt® U 320 F is well suited for applications with low thermal activation temperatures, such as automotive, textile, footwear and furniture applications. With Desmomelt® U 320 F, fast and environmentally friendly lamination processes can be realized, e.g. by powder scattering, which require particularly small particle sizes. Desmomelt® U 320 F 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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About
Product Types
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Material
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General Characterization
Desmomelt U 320 F is an aliphatic high-molecular-weight polyester polyurethane. It is a particularly fine powder for the production of non-yellowing, thermally activated hot melt adhesives. Desmomelt U 320 F is well suited for applications with low thermal activation temperatures, such as automotive, textile, footwear and furniture applications. With Desmomelt U 320 F, fast and environmentally friendly lamination processes can be realized, e.g. by powder scattering, which require particularly small particle sizes. Desmomelt U 320 F 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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Packaging Type
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Technical Properties & Datasheets
Characteristics
| Property Name | Test Method | Unit | Value |
|---|---|---|---|
| Hot tack life (Depends on application conditions) | min | 2 - 5 | |
| Density | g/cm^3 | approx. 1.2 | |
| Minimum activation temperature | °C | 55 - 65 | |
| Heat resistance | °C | approx. 50 |
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 | |
| Sieved over | μm | 100 |
Downloads
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Technical Data Sheet
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Safety Data SheetNo direct download available, please visit www.productsafetyfirst.covestro.com
