Bis-Hydroxypropyl Dimethicone/SMDI Copolymer. Silmer® UR-5050 by Siltech is a 45% active, high molecular weight silicone urethane resin diluted in isododecane. It is used as silicone barrier and film former to impart water repellency and softness. It is suitable for transfer resistant lipsticks, cosmetics creams, shampoos and conditioners. The recommended shelf life of Silmer® UR-5050 is 48 months from date of manufacture.
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Silmer® UR-5050 properties
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| Properties | Value & unit | Test condition | Test method |
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| Boiling Point | 0.0 Visible After Login | Visible After Login | Visible After Login |
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| Flash Point, Closed Cup | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Refractive Index | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Solid Content | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Viscosity | 0.0 Visible After Login | Visible After Login | Visible After Login |