Opaque pigments transform clear casting resin into solid, vibrant color. Castin' Craft formulates these concentrated dispersions specifically for polyester and epoxy resins, eliminating the translucency that standard dyes create. A few drops produce pastel tones; more pigment builds toward complete opacity. This control lets you dial in exact color density for each project, from softly tinted pieces to fully saturated castings that block all light transmission.

Polyethylene squeeze bottles with dispensing spouts deliver precise drop control. You add pigment directly to measured resin, stirring thoroughly to eliminate streaks before catalyzing. Colors blend cleanly when combined, enabling custom shade mixing without muddiness. The 1-ounce bottles provide enough pigment for multiple small to medium castings while maintaining freshness between projects.

These pigments handle everything from decorative embedments to functional parts where opacity matters. Jewelry makers use them for solid-color bezels and backings. Model builders create opaque components that won't show interior structure. Craft resin users achieve the dense, saturated colors that clear resin alone cannot deliver, whether casting individual pieces or producing matched multiples.