PMC™ -121/50 by Smooth-On is a wet, long lasting, durable polyurethane rubber. Exhibits exceptional strength and good abrasion resistance. It has a higher net shrinkage value than dry rubber. It exudes oil that aids in demolding hard plasters and concrete. Recommended for molds to reproduce sculpture and architectural elements & for making special effects, toys and prototypes. Also used in the reproduction of ornamental plaster, precast concrete and ceramic case molds. PMC™ -121/50 is mixed 1:1 solution by weight or volume.
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PMC™ -121/50 properties
Flammability properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Flash Point | 0.0 Visible After Login | Visible After Login | Visible After Login |
Mechanical properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| 100% Modulus | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Elongation at Break | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Hardness, Shore A | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Tear Strength | 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 |
|---|---|---|---|
| Viscosity | 0.0 Visible After Login | Visible After Login | Visible After Login |
Physical properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Cure time | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Density | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Linear Mold Shrinkage | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Pot Life | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Specific Volume | 0.0 Visible After Login | Visible After Login | Visible After Login |