Smooth-On Smooth-Cast 327

Smooth-On Smooth-Cast 327

The Smooth-Cast® 325, 326 & 327 ColorMatch® Series plastics are fast-cast 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 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). 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.

Data At-A-Glance

Mix Ratio By Volume 1A:1B
Mix Ratio By Weight 115A:100B
Specific Gravity 1.07 g/cc
Specific Volume 25.9 cu. in./lb.
Color Clear Amber
Pot Life 2.5 minutes
Cure Time 10 minutes
Tensile Strength 3,170 psi
Elongation @ Break 10 %
Compressive Modulus 36,500 psi
Shrinkage 0.01 in. / in.
Tensile Modulus 140,000 psi
Flexural Strength 3,690 psi
Flexural Modulus 101,000 psi
Compressive Strength 3,500 psi
Shore Hardness 72 D
Heat Deflection Temp 120 °F
Mixed Viscosity 100 cps

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