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Desmocoll® 621/0

Predominantly linear, flexible hydroxyl polyurethane with a high crystallisation rate and low thermoplasticity. Good adhesion on PVC substrates. Suitable to formulate adhesives with a long tack life.

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Product Types

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Material

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General Characterization

Desmocoll® 621/0 is a predominantly linear, flexible hydroxyl polyurethane with a high rate of crystallization and low thermoplasticity. It has good adhesion on many flexible PVC substrates. Desmocoll® 621/0 is characterized in particular by its long tack live after thermal activation.

Storage Conditions

- Storage in original sealed Covestro containers.

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Recommended storage temperature: 10 - 25 °C.

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

Sampling

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Packaging Type

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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 1,250 ± 250

Property Name Test Method Unit Value
Minimum activation temperature DIN EN 12961 °C approx. 55
Hot tack life DIN EN 12961 min approx. 8
Bondability of materials containing plasticisers DIN EN 15307 very good
Heat resistance ASTM D 816 °C approx. 70
Hydroxyl content DIN 53 240 % < 0.1
Density DIN EN ISO 2811 g/ml approx. 1.2
Crystallization DIN 53 505 h approx. 2

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