25WC783-G_TDS.pdf

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eo . SB ALIPHATIC & WATER CLEAR URETHANES
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WATER CLEAR RIGID 82 SHORE D JS
URETHANE CASTING SYSTEM RoHS
WC-783 A/B is an impact resistant, rigid, 82 Shore D material that is commonly used to make clear or tinted castings of all kinds.
The standard work time is 15 minutes, however 6 additional work speeds are available. A mild post-cure is recommended for best
results.
Exceptional clarity Noodor
Impact resistant UV light and oxidation resistance
e Good exterior weatherability, light stable
PHYSICAL PROPERTIES TEST METHOD RESULTS
Hardness, Shore D ASTM D2240 82+2
Density (g/cc. ASTM D792 1.05
Cubic Inches per Pound 26.4
Color/Appearance Sight color/Clear
Tensile Strength (psi ASTM D638 6,650
Tensile Modulus (psi; ASTM D638 2.6 x 10
Elongation (%; ASTM D638 65
Flexural Strength (psi, ASTM D790 11,000
Flexural Modulus (psi: ASTM D790 3.2 x 10
Shrinkage (in/in) linear 15-minute work time 12 x1/2″x1/2″ 0.002
Shrinkage (in/in) linear 30-minute work time 12″x1/2″x1/2″ 0.002
Izod Impact, notched (ft-lb/in ASTM D256 1.0
Heat Deflection Temperature @ 66psi ASTM D648 158 F (70 C)
Compressive Strength (psi ASTM D695 8,350
Compressive Modulus (psi ASTM D695 3.5 x 10
Coefficient of Thermal Expansion (in./in./F ), -4 to 266 F
(20 to 130 C) ASTM D3386 gx 105
HANDLING PROPERTIES Part B
Mix Ratio by weight 90
Mix Ratio by volume 94
Specific Gravity @ 77 F (25 C) 1.03
Color Colorless
Viscosity (cps) @ 77 F (25 C) Brookfield | (iOC~C i CS: 550
Mixed Viscosity (cps) @ 77 F (25 C) Brookfield 650 + 50
Work Time, 100g mass @ 77 F (25 C: 15 minutes*
Demold Time @ 77 F (25 C) 6 8 hours
Properties above are typical and not for specifications.
*The 15-minute work time is the standard in-stock product. Products with 30, 60, 90, and 180-minute work times are available on
a special-order basis.
WC-783 A/B. Page | of 2 Date: 03/21/2022
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929
www. bjbenterprises.com