RU-440 A/B by Silpak is a low viscosity, liquid, 100% solids, easy to process, two-component urethane RTV elastomer. Offers excellent strength and excellent library shelf-life. Designed to make molds or rubber parts to cast concrete, wax and plaster parts. Shelf life of RU-440 A/B is 6 months at 65-85°F. Available as 100:50 mix ratio by weight.
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RU-440 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 |
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 |