Desmocoll® 621/2 by Covestro is a predominantly linear hydroxyl polyurethane. It provides benefits such as a high crystallization rate, low thermoplasticity, good adhesion on many flexible PVC substrates, and long tack life after thermal activation. Desmocoll® 621/2 is used in the formulation of adhesives for use on various materials like leather, rubber, textiles, wood, many plastics, including PU elastomers, plastic films, and aluminum foils. It has a shelf life of six months.
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Desmocoll® 621/2 properties
Other properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Activation Temperature | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Crystallization Temperature | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Density | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Heat Resistance | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Hot Tack Life | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Hydroxyl Content | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Viscosity | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Solubility Properties | Element | Condition | Method |
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