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Gelest WIA-SRA

Gelest Titanium Dioxide SR (WIA-SRA) is a white powder with polymethyl silsesquioxane and trimethylsiloxysilicate. The hydroxyl-terminated silsesquioxane network in the coating improves adhesion to skin and hair, making it ideal for use in color cosmetic formulations. This pigment is the best candidate for use in long-wearing and water-resistant makeup.

INCI Name: Polymethylsilsesquioxane, Trimethylsiloxysilicate

Pigment Treatment Type: Silicone & Silane Treatment

Pigment Treatment Family: Hydrophilic Treatments

Labeling Claims: Clean at Sephora, Credo Clean Standard, Ulta Beauty's Conscious Beauty

Knowde Enhanced TDS

Identification & Functionality

CI Number
Pigment Treatment Family
Pigment Treatment Type
Cosmetic Ingredients Functions
Chemical Structure

Gelest WIA-SRA - Chemical Structure

Features & Benefits

SR Treatment Benefits
  • Superior skin adhesion
  • Water repellency
  • Low oil absorption
  • Provides long wear
  • Higher loading capacity
Performance Benefits

SR pigments and fillers are coated with a hydroxyl terminated silsesquioxane network that improves adhesion to skin and hair. SR pigments are well suited for use in eye make-up formulations. They are hydrophobic, yet are not overly sensitive to oils including sebum.

  • Water repellency
  • Low oil absorption
  • Forms high solids dispersions
  • Improves wear
  • Improves skin adhesion
  • Improves compressibility
  • Recommended for long wearing eye area products
Product Highlights
  • Trimethylsiloxysilicate (SR)-Treated Pigments and fillers provide superior adhesion to skin and hair.
  • SR pigments are best candidates to be used in long-wearing and water-resistant makeup.
  • They are hydrophobic yet are not overly sensitive to oils including sebum.

Applications & Uses

Application Format
Color Cosmetic Applications
Recommended Uses
  • Long-wearing lipsticks
  • Long-wearing foundations
  • Long-wearing eyeshadows
  • Long-wearing eyeliners
  • Long-wearing mascaras

Properties

Physical Form
Appearance
White powder
Odor
Slight characteristic
Typical Properties
ValueUnitsTest Method / Conditions
HydrophilicityPasses (1 gram floats on 50 ml still deionized water for one hour)
Loss on Drying (at 105°C, 3 hours)max. 1%
Microbiological Values
ValueUnitsTest Method / Conditions
Microbial Content (No Pathogens)max. 100cfu/g
Composition
ValueUnitsTest Method / Conditions
Titanium Dioxide Content96 - 99%
Trimethylsiloxysilicate Content1 - 4%
Heavy Metals
ValueUnitsTest Method / Conditions
Antimony Contentmax. 2ppm
Arsenic Contentmax. 1ppm
Cadmium Contentmax. 1ppm
Lead Contentmax. 10ppm
Mercury Contentmax. 1ppm

Technical Details & Test Data

Skin Adhesion and Wear Resistance

Gelest WIA-SRA - Skin Adhesion And Wear Resistance

Gelest WIA-SRA - Skin Adhesion And Wear Resistance - 1

∆L* Values of Eyeshadow Regression

TiO₂ Dispersion in Diethicone

Gelest WIA-SRA - Tio₂ Dispersion in Diethicone

Packaging & Availability

Packaging Information
  • 75g
  • 300g
  • 1kg
  • 10kg
  • 25kg