Shin-Etsu Silicones Introduces Water-Based SPD-WT1

This high concentration dispersion of hydrophobic treated ultrafine TiO2 in water has an environmentally friendly profile.

The cosmetic industry’s “all natural” ingredients trend continues to grow.

Leading this natural trend is water − the most sustainable solvent chemists can use in cosmetics. Meeting this trend head-on, Shin-Etsu Silicones recently introduced its new SPD-WT1−a high concentration dispersion of hydrophobic treated ultrafine Titanium Dioxide (TiO2) in water.

SPD-WT1 touts sensorial benefits and SPF properties, in addition to its environmentally friendly profile by using water in lieu of organic or synthetic solvents−notably for sun care applications.

By utilizing SESE technology, SPD-WT1 provides high transparency and fluidity to formulations, per company officials. As a low viscosity dispersion, it is also easy to mix into water.

Key Features

SPD-WT1’s key features include aqueous dispersion of hydrophobic treated ultrafine TiO2 that can be added to the water phase; high-concentration TiO2 dispersion makes it easy to create high SPF products; achieves both water resistance and washability with soap; low viscosity and easy-to-use; and an ISO 16128 / Natural Origin Index of 76.5%.

It is ideally used in sun care products, and other skin care or color cosmetics that desire to claim sun protection.

“If you have a water-based formulation, you might assume it is not water resistant−but we have data showing that it is,” said SESE’s head of sales/cosmetics, Dr. Martin Kropfgans. “The data was the result of a test, where we applied each dispersion to synthetic leather and water resistance as well as washability were evaluated. As a conclusion, while being water resistant, it’s quite easily removable if you use soap−whereas other water-based formulations were not water resistant.”

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