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RD 85 FR: RIGID 78 SHORE D POLYURETHANE CASTING SYSTEM FIRE RETARDED

PRODUCT HIGHLIGHTS:

  • Rapid demolds
  • Ideal for part production
  • Does not contain MOCA, MDA, or TDI
  • Execellent tear strength and toughness

PRODUCT DESCRIPTION:

Flex 50 is a production oriented fast gel and fast de-mold material. It features a working time which allows time to mix, vacuum de-gas, and pour air-free parts. Flex 50 can be demolded in as little as one hour depending on part size and configuration.

PHYSICAL PROPERTIES

Hardness, shore D ASTM D-2240 78±2
Density (g/cc) ASTM D-792 1.26
Displacement (cu.in./lb) 22.6
Color/Appearance White/Opaque
Tensile Strength (psi) ASTM D 638 6,100
Elongation(%) ASTM D 638 5
Flexural Strength, (psi) ASTM D-790 8,600
Flexural modulus, (psi) ASTM D-790 2.3X105
Shrinkage (in./in.) linear 12″X1/2″X1/2″ 0.005
Tensile Modulus(psi) ASTM D 638 2.3X105
Izod Impact (Notched ft.lb./in.) ASTM D-256 0.62
Heat Deflection Temperature ASTM D-648:
@66 psi
@264 psi
1950±50F(910±30C)
1800±50F(820±30C)

HANDLING PROPERTIES

Mixed Viscosity (cps) @ 770F(250C) 400
Work Life @ 750F(240C) 5 minutes
Demold Time 3-4 hours
Cure Schedule For ultimate heat distortion the material should be post cured at 1600F(710C) for 6 hours. This gives a HDT of 1500F(680C)