Average Physical Properties of R-Cast® Material
Physical Property Test Criteria English Units SI Units   Physical Property Test Criteria English Units SI Units
Mechanical ASTM       Thermal      
Specific Gravity D-792 1.19 1.19    Thermal Expansion      
Tensile Strength         -22° F to 60° F D-696 3.0(in/in°Fx10-5) 54(mM/MM°C)
(a)Ultimate Strength D-638 10,500 PSI 72.4 Mpa   -22°F to 80°F D-696 3.2(in/in°Fx10-5) 57.6(mM/MM°C)
(b) Elongation at Break D-638 4.0% 4.0%   -22°F to 100°F D-696 3.7(in/in°Fx10-5) 57.6(mM/MM°C)
(c)Modulus of Elasticity D-638 480,000 PSI 3.01Gpa   Deflection Temp of Plastics Under Flexure D-648 210°F 99°C
Ultimate Flexure Strength D-790 16,000 PSI 110.3 MPa   Optical Properties      
Compressive Yield Strength D-695 17,500 PSI 120.7 MPa   Refractive Index D-542 1.49 1.49
Compressive Modulus D-695 480,000 PSI 3.01 GPa   U.V. Light Transmittance
(290-330nm)		 E-308 1% 1%
Compressive deformation under load
(4,000 Lbs/in-122°F-24 hrs)		 D-621 0.45% 0.45%   Luminous Transmittance D-1003 91.0% 91.0%
Shear, Ultimate Strength D-732 10,000 PSI 68.9 Mpa   Visual Clarity D-702 Passed Passed
IZOD Impact Strength D-256 .32 FT lb/in 17.1J/m   Other
R-Cast® material is crossed-linked and UVA stabilized unless otherwise requested
Rockwell "M" Hardness D-785 103 "M" 103 "M"  
Water Absorption (24 hr) D-570 0.11% 0.11%