3d-Cam: The Cutting Edge in Rapid Prototyping, Rapid Tooling, Stereolithography 3d-Cam: The Cutting Edge in Rapid Prototyping, Rapid Tooling, Stereolithography


Tech Support: Materials

SLA Resins
 

RFD 75

PRODUCT DESCRIPTION:

RFD 75 is a  very low viscosity,  rapid setting, rigid urethane compound. This system will cure quickly to a hard, tough, impact resistant casting. RFD 75  is non-sensitive to moisture after cure and will readily bond to itself if stage pours are required. The one to one volume mix ratio makes the system readily adaptable for machine mixing and dispensing. RFD 75 is recommended in applications where a "thermoplastic feel" is desired.

PHYSICAL PROPERTIES

Hardness, ASTM D-2240 75±2
Specific Gravity (gm/cc), ASTM D-792 cured 1.05
Displacement (cu.in./lb) 26.4
Tensile Strength (psi) ASTM D-638 5,850
Tensile Modulus, (psi) ASTM D-638 0.2X106
Elongation(%) ASTM D-638 4.1
Flexural Strength (psi) ASTM D-790 7,567
Flexural Modulus ASTM D-790 0.2X106
Linear Shrinkage (in./in.) (3/8-1/2in ) ASTM-D-2566 0.0087
Coefficient of Thermal Expansion (in/in/0F) ASTM D-696  13.2X10-5
Heat Deflection Temperature ASTM D-790 1350F(570C)
Izod Impact (ft.lbs./in.) ASTM D-256 0.42

HANDLING PROPERTIES

Mixed Viscosity  @ 770F(250C) (cps) 240
Color Creamy white
Work Life @ 770F(250C), 100 gr.mass 2-2.5 minutes
Demold Time 770F(250C)  20-60 minutes
Cure Schedule 5-7 days@ ambient temperature
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