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SRD 65
PRODUCT DESCRIPTION:
SRD 65 is a medium viscosity, economical and easy to handle two component urethane compound. This system cures relatively fast at room temperature producing tough, impact resistant castings. SRD 65 is recommended in applications where a resilient surface hardness is desired while maintaining good flexibility.
PHYSICAL PROPERTIES
| Hardness, ASTM D-2240 | 65 |
| Specific Gravity, ASTM D-792 cured | 1.15 |
| Displacement (cu.in./lb) | 24 |
| Elongation(%) ASTM D-638 | 70 |
| Tensile Strength (at Break) psi, ASTM D-638 | 2475 |
| Tensile Modulus, (psi) ASTM D-638 | 45,000 |
| Tear Strength (pli) ASTM D-624 | 585 |
| Linear Shrinkage (in./in.) | 0.002 |
| (16″ length X 1/2″ thickness) | 0.0035 |
HANDLING PROPERTIES
| Mixed Viscosity (Brookfield) @ 750F (cps) | 1400 |
| Work Life @ 770F(250C), 1 lb.mass | 10 minutes |
| Demold Time 770F(250C) | 3 hour minimum, 1/2″ thick sections 2 hour or less in mass cast |
| Cure @ 770F(250C) | 3 days |