Smooth-Cast 325

Smooth-On's Smooth-Cast 325 are urethane resins that were developed specifically for adding color pigments and fillers to achieve true color representation or filler effect.

The ColorMatch® Plastic Series is formulated as “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.

Note: Large mass castings will get very hot and shrink more, depending on mold configuration.

Mix Ratio: 1A:1B
Color: Clear Amber
Pot Life: 2.5 minutes
Cure Time: 10 minutes
Shore Hardness: 72D

Safety Data

$35.00 /Each.

In Stock

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Smooth Cast 325

Trial Kit ($35.00)

Gallon Kit (15lbs) ($158.00)

5 Gallon Kit (75lbs) ($560.00)

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Applying A Release Agent - A release agent is necessary to facilitate demolding when casting into or over most surfaces. Use a release agent made specifically for mold making (Universal® Mold Release or Mann’s Ease Release™ 200 available from Smooth-On or your Smooth-On distributor). A liberal coat of release agent should be applied onto all surfaces that will contact the plastic.

NOTE: When adding SO-Strong™ RED tint to Smooth-Cast™ 326 or 327, the color will darken and change. For a better match when using SO-Strong™ RED, use Smooth-Cast™ 325 as your casting resin. This is only an issue with SO-Strong™ RED, all other SO-Strong™ colors will behave normally.