Smooth Cast 322

Unit Size	Net Weight
Pint Kit	1.9 lb
Gallon Kit	15.4 lb
Five Gallon Kit	77 lb

 

Smooth Cast 322 is a slow-setting ultra-low viscosity casting resin that yields virtually bubble-free castings. Smooth Cast 322 Series resins yield castings that are off-white and are sister products to our popular Smooth Cast 300 Series of Bright White Plastics.

Technical Properties

Mix Ratio by Weight	100A:90B
Mix Ratio by Volume	1A:1B
Pot Life	20 minutes
Cure Time	4 hours
Color	Off White
Shore Hardness	70D
Mixed Viscosity	80 cps
Shrinkage	0.007 in./in.
Specific Volume	26.4 cu. in./lb.
Specific Gravity	1.05g/cc
Tensile Strength	3,000 psi
Elongation @ Break	8%
Compressive Modulus	40,300 psi
Tensile Modulus	134,000 psi
Flexural Strength	3,500 psi
Flexural Modulus	110,000 psi
Compressive Strength	3,550 psi
Heat Deflection Temp	140¼F

 

Smooth Cast 322 Series resins are easier to color and tint using SO-Strong color tints. Easy to mix and pour these resins offer the convenience of a one to one mix ratio (one part A to one part B by volume). The Smooth Cast 322 Series resins readily accept pigments and fillers (such as URE-FIL 3, 5 and 7 from Smooth-On). These products are ideal for creating cold cast metal effects. Fully cured castings are tough, durable, machinable and paintable. They resist moisture and mild solvents. Applications for Smooth Cast 322 Series resins include: reproducing small to medium size sculptures, cold cast bronze, making prototype models, special effect props, decorative jewelry, etc.
How do I remove release agent from my cured urethane casting if I want to prime or paint the casting?
Removing a silicone-based release agent from your cured urethane casting is not easy. The most effective way is to sand blast or bead blast the surface of your casting. However, sand blasting removes a micro thin layer of the castingÕs surface. If not done properly, you can damage or remove fine detail. Soap Wipe or brush the casting with a soap that has high alkali content. Cascade brand dishwashing gel is highly alkaline and also contains baking soda, which is an advantage. Solvents Wipe or brush the casting with Acetone, Toluene, Isopropyl Alcohol or Mineral Spirits.
Important: follow all safety precautions when using flammable liquids. You can then prime and paint your casting.

Technical Bulletin

PRODUCT ADVISORY:
The products listed below are currently SPECIAL ORDER items and require pre order.
Lead times may vary - For more information please contact our staff.

796602 - Smooth Cast 322 - Five Gallon Kit