Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Clariant KCB Fluorescent Brightener

Clariant KCB is an odorless yellow-green powder (purity ≥98%), insoluble in water. It has excellent light/heat resistance, no reaction with foaming agents, no exudation, and works well at 370nm. It delivers bright blue-white whitening at low dosage and enhances color of colored plastics.

Features Of Clariant KCB Fluorescent Brightener

  1. Excellent light/heat resistance, suitable for high-temperature plastic processing and outdoor applications.

  2. Good compatibility with foaming agents/crosslinking agents, no side reaction risk.

  3. No exudation/extraction, ensuring long-term appearance stability of products.

  4. Dual effect of whitening and color enhancing, effective for white/colored plastics.

  5. Special effect on EVA/PE foam plastics, fitting foam product processing.

Typical Applications Of Clariant KCB Fluorescent Brightener

  1. Suitable for whitening polyolefins, PVC, TPR, EVA and other general plastics.

  2. Fits optical optimization of plastic films, laminated/injection molded products.

  3. Used to improve whiteness and gloss of PU foam and synthetic rubber.

  4. Applied in whitening coatings and natural lacquers with uniform natural effect.

  5. Special whitening effect on EVA/PE foam plastics, suitable for foam products.

Specifications Of Clariant KCB Fluorescent Brightener


ParameterSpecification / Value
AppearanceYellow-green powder
ShadeBright blue-white
Volatile Content≤ 0.5 %
Melting Point237 - 239 °C
Fineness≥ 100 mesh
Purity≥ 98 %
OdorOdorless
Water SolubilityInsoluble in water
Max Absorption Wavelength370 nm
Recommended Dosage5 - 50 g per 100 kg material
Special ApplicationEVA / PE foam plastics








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