BC-8009 Slo-Kast Gray Urethane Resin


BC-8009 is a two-part, urethane tooling resin that cures (RTV) to a gray, Shore D85 plastic. This resin offers a longer pot life (14-18 min.) compared to other products in the Kast Series, but still offers a relatively fast demold time (3-4 hr.) for fast turnaround of parts. BC-8009 is often used for filling larger closed mold cavities and for casting larger sections without the need for stage pouring. Common applications include; tracing models, core boxes, keller aids, patterns, core sticks, vacuum form tools, prototypes and display parts.

WARNING: This product can expose you to chemicals including Benzene, Cumene and Dibutyl Phthalate which are known to the State of California to cause cancer and/or reproductive harm. For more information, go to www.P65Warnings.ca.gov


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Technical Specifications

Mix Ratio by Weight:
Mix Ratio by Volume:
Shore Hardness:
Pot Life:
14-18 min.
Demold Time:
3-4 hr.
Cured Color:
Mixed Viscosity:
2,250 cP
Specific Gravity:
Specific Volume:
15 in³/lb
Linear Shrinkage:
0.0002 in/in
Heat Deflection Temp.:
Tensile Strength:
5,850 psi
Flexural Strength, 5% Strain:
6,900 psi
Compressive Strength:
8,800 psi
Shake or Stir Part A & Part B before use. Demold time varies with thickness of casting. The thinner the casting, the longer the demold time.

More Information

Material Calculator

Technical Bulletin

Safety Data Sheet - Part A

Safety Data Sheet - Part B

Kit Components
BC-8009 Components
5-lb kit includes: 2.5 lb of BC-8009 Gray Part A (~1 quart)
2.5 lb of BC-8009 Gray Part B (~1 quart)
20-lb kit includes: 10 lb of BC-8009 Slo-Kast Gray Part A (~1 gallon)
10 lb of BC-8009 Slo-Kast Gray Part B (~1 gallon)