25TC808-F_SDS.pdf

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TC-808 A/B
78 SHORE D URETHANE yg
CASTING SYSTEM RoHS
TC-808 A/B is a low viscosity, rapid setting, and rigid urethane compound. This system will cure quickly to a hard, tough
casting. TC-808 A/B is generally insensitive to moisture during and after cure and will readily bond to itself if stage pours are
required. TC-808 A/B is recommended in applications where a thermoplastic feel” is desired.
PHYSICAL PROPERTIES RESULTS
Hardness, Shore D 7842
Density (g/cc) 1.08
Cubic Inches per Pound 25.7
Color/Appearance White/Opaque
Tensile Strength (psi) 6,000 _
Tensile Modulus (psi) 190,000
Elongation (%) 7
Flexural Strength (psi) 6,225
Flexural Modulus (psi) 170,000
Shrinkage (in/in) linear 0.004
Izod Impact, notched (ft-Ib/in) 0.52
Heat Deflection Temperature, 66 psi 170 F (76.7 C)
Dielectric Constant, 1 MHz 3.447
Dissipation Factor, 1 MHz 0.0176
Ball Pressure Test (mm) 167 F (75 C) 17
HANDLING PROPERTIES Part B
Mix Ratio by weight [ tOt Cs i*zCY 400
Mix Ratio by volume a 100
Specific Gravity @ 77 F (25 C) 1.02
Color White
Viscosity (cps) @ 77 F (25 C) Brookfield a | 300
Mixed Viscosity (cps) @ 77 F (25 C) Brookfield 200
Work Time, 100g mass @ 77 F (25 C) 22.25 minutes
Demold Time @ 77 F (25 C) 10 20 minutes (see Note 1)
Properties above are typical and not for specifications.
TC-808 A/B Page | of 2 Date: 11/05/2020
For more information call BJB Enterprises, Inc. (714) 734-8450 Fax (714) 734-8929
www.bjbenterprises.com