IsoMold CMR 4002 is a two-part polyurethane molding system. It is mixed one-to-one by volume and cures at room temperature. IsoMold CMR 4002 cures to a medium (Shore A 40 ± 2), gray rubber. This product is used to make molds of detailed masters that do not contain undercuts. IsoMold CMR 4002 physical properties make it ideal for making concrete patterns and form liners.
Applications
- Pigmented and Unpigmented Concrete Moldings
- Point of Purchase Displays
- Precast Concrete Moldings
- Sculpture Repoductions
Advantages
- Convenient mixing ratio (s)
- Excellent release characteristics
- Low shrinkage
- Picks up fine detail in molding/casting applications
Product Types
Concrete Mold Rubber
Product Testing
| Test Performed | Test Results |
| Color - ISO | Amber |
| Color - POL | Amber |
| Demold Time | 16-24 Hours |
| Elongation - ASTM D412 | 745 % |
| Full Cure | 7 Days |
| Hardness - ASTM D2240 - Shore A | 38-42 Shore A |
| Initial Cure Time | 24-48 Hours |
| Mix Time - by Hand | 1-2 Minutes |
| Ratio by Volume - ISO:POL | 0.96:1 |
| Ratio by Weight - ISO:POL | 1:1 |
| Tear Strength - ASTM D624, Die C | 92 pli |
| Tensile Modulus - ASTM D412 | 118 psi |
| Tensile Modulus - ASTM D412 - 100% | 113 psi |
| Tensile Modulus - ASTM D412 - 200% | 186 psi |
| Tensile Modulus - ASTM D412 - 300% | 245 psi |
| Tensile Strength - ASTM D412 | 555 psi |
| Weight per gallon - ISO | 8.25-8.75 |
| Weight per gallon - POL | 8.25-8.75 |