Why manufacturers rely on a dense opaque white for plastics and cosmetic bases
A 1 kg pack of white pigment suits workshops, small cosmetic labs and craft studios that need a reliable amount for repeated batches rather than a single test run. In terms of function it sits close to the titanium dioxide category, uniting white opacifying colorants known for strong coverage and stable tone under heat and long storage.
Globally, the largest demand for this type of pigment comes from plastics, coatings, rubber and paper production, where it delivers whiteness and opacity to raw materials before molding or printing. In decorative cosmetics the same pigment is blended into powders, foundations, pressed eyeshadow bases and lipstick formulas that require a light, neutral base before further tinting. For pale and pastel lip shades it is often paired with White Lipstick Pigment, formulated specifically for wax and fatty lip bases.
Craft and resin work is another strong application area: white pigment is used for epoxy resin pours, marble-effect coasters, candle wax coloring and plaster casting. For smoother color transitions in liquid systems, many formulators combine it with White Liquid pigment, which disperses instantly thanks to its ready liquid form. When a glowing accent under UV light is needed alongside a light overall tone, a small portion of White Fluorescent Pigment is added without shifting the base shade too far from white.
Dosage depends on the density of the host material: cosmetic emulsions and decorative blends typically need about 1 to 5 percent of the total mass, while plastics, rubber and dense resin castings may require up to 8-10 percent for full opacity. It is best introduced during active mixing, at a temperature suited to the base material: waxes and fats accept the pigment well at around 60-80 degrees Celsius, while cold resins and gels are best handled with mechanical dispersion without heating. Sifting or grinding the pigment before use helps avoid clumping and uneven color distribution across the batch.
Keep the container tightly sealed in a dry place away from direct sunlight and strong odors, since the pigment can absorb moisture and cake over time. Proper storage preserves both the opacity and consistency of the color across repeated production runs.
White marble-effect resin coaster
Clear epoxy resin 300 g
Hardener 150 g
White pigment 4 g
Silver mica powder 2 g
Mix
the resin and hardener slowly for about three minutes until fully combined,
then divide the mixture into two cups, tinting one with the white pigment until
fully opaque and leaving the other clear with a pinch of mica powder for
shimmer. Pour the white layer into a silicone mold first, swirl in the
shimmering layer with a thin stick to create marble veins, then let the coaster
cure undisturbed for at least twenty four hours before demolding.