RU-448 A/B by Silpak is a 100% solids, two-component, easy to process urethane RTV elastomer. It is available as 100:100 mix ratio by weight. Designed for creating molds & large rubber parts where dimensional stability is required to avert distortion. Molds are used to cast cement, wax and plaster parts. Provides semi flexibility, good abrasion resistance, good elongation and easier demolding. Shelf life of RU-448 A/B is 6 months at 65-85°F.
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RU-448 A/B properties
Mechanical properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Hardness, Shore | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Tensile Elongation | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Tensile Strength | 0.0 Visible After Login | Visible After Login | Visible After Login |
Other properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Tear Strength | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Viscosity | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Viscosity | 0.0 Visible After Login | Visible After Login | Visible After Login |
Physical properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Gel Time | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Specific Gravity | 0.0 Visible After Login | Visible After Login | Visible After Login |