| BELSIL® TMS 803 is the co-hydrolysis product of tetraalkoxysilane (Q unit) and trimethylethoxysilane (M unit). The chemical structure of BELSIL® TMS 803 can be seen as a three-dimensional network of polysilic acid units, which are endblocked with trimethylsilyl groups. Some residual ethoxy and hydroxy functions are present. BELSIL® TMS 803 is a white powder manufactured in such a way that it is substantially free of aromatic solvents such as toluene. In keeping with its low content of fine dust particles and its uniform particles, BELSIL® TMS 803 exhibits excellent rheological properties (flowability). BELSIL® TMS 803 can be compounded with polydimethylsiloxanes. Application: This highly cross-linked silicone resin is primarily used for its film-forming attributes. In sunscreen, skincare and color cosmetic applications, the Trimethylsiloxysilicate BELSIL® TMS 803 is an excellent water-resistant additive and helps to hold pigments in place. It prevents agglomeration and maintains free-flowing characteristics in loose powder products. In haircare compositions, the silicone resin provides volume and body, while imparting humidity resistance to the hair. INCI name: Trimethylsiloxysilicate Information provided by Wacker Chemie AG. |
