Color | Clear Amber | Off White |
Compressive Modulus | 36,500 psi | 45,800 psi |
Flexural Modulus | 101,000 psi | 132,000 psi |
Smooth-Cast™ 325 | Smooth-Cast™ 320 | |
---|---|---|
Product Type |
|
|
Mixed Viscosity | 100 cps | 80 cps |
Mix Ratio By Volume | 1A:1B | 1A:1B |
Mix Ratio By Weight | 115A:100B | 100A:90B |
Pot Life | 2.5 minutes | 3 minutes |
Cure Time | 10 minutes | 10 minutes |
Shore D Hardness | 72 | 70 |
Specific Gravity | 1.07 g/cc | 1.05 g/cc |
Specific Volume | 25.9 cu. in./lb. | 26.4 cu. in./lb. |
Color | Clear Amber | Off White |
Tensile Strength | 3,170 psi | 3,000 psi |
Tensile Modulus | 140,000 psi | 138,000 psi |
Elongation @ Break | 10 % | 10 % |
Compressive Strength | 3,500 psi | 3,650 psi |
Compressive Modulus | 36,500 psi | 45,800 psi |
Flexural Strength | 3,690 psi | 4,500 psi |
Flexural Modulus | 101,000 psi | 132,000 psi |
Shrinkage | 0.01 in. / in. | 0.01 in. / in. |
Heat Deflection Temp | 120 °F | 140 °F |
The Smooth-Cast™ 325, 326 & 327 ColorMatch™ Series plastics are urethane resins that were developed specifically for adding color pigments and fillers to achieve true color representation or filler effect. The ColorMatch™ Series is formulated “color neutral”. Small amounts of pigment will yield accurate, vivid colors from cured castings using So-Strong™ tints, UVO™ pigments or Ignite™ color pigments. The ColorMatch™ Series offers the convenience of a 1A: 1B mix ratio by volume and has a very low viscosity. Demold times range from about 10 minutes to 2-4 hours (depending on product, mass and mold configuration). Note: Large mass castings will get very hot and shrink more, depending on mold configuration.
The ColorMatch™ Series also readily accept fillers (such as URE-FIL™ 3 from Smooth-On). Because of its neutral color, Smooth-Cast™ 325 is ideal for creating marble and wood grain casting effects, or duplicating the look of real metal by adding bronze, brass or other metal powder. Applications for the ColorMatch™ Series plastics include making pigmented prototype models or figures, special effect props, reproducing small to medium size sculptures, decorative jewelry, etc.
The Smooth-Cast™ 320 Series consists of ultra-low viscosity casting resins that yield virtually bubble-free off-white castings. The Smooth-Cast™ 320 resins are sister products to our popular Smooth-Cast™ 300 Series of bright white plastics, but are easier to color using SO-Strong™ or Ignite™ color tints. Smooth-Cast™ 320 series is easy to mix and pour, offering the convenience of a 1A:1B by volume or 100A : 90B by weight mix ratio.
The Smooth-Cast™ 320 Series resins readily accept pigments and fillers (such as URE-FIL™ 3, 5 and 7 from Smooth-On). Fully cured castings are tough, durable, machinable and paintable. They resist moisture and mild solvents. Applications for Smooth-Cast™ 320 Series resins include reproducing small to medium size sculptures, making prototype models, special effect props, decorative jewelry and taxidermy (bones, antlers, teeth etc.).