SILAS,a highly weatherproof water-base coating material, put on the market in February 1997

  • SILAS is a water emulsion for highly weatherproof paint, aiming at "being friendly to the environment" and "protecting base materials from the severe environment".
  • SILAS can be widely used not only for inorganic materials, such as concrete, tiles, and ALC, but also for metals, plastics, and wood.

Typical properties of SILAS PC-100

Soild content pH Viscosity
(cps)		 Ionicity MFT
45％ 8-10 5-50 Anion 35℃

Curing reaction and working mechanism of SILAS

Evaporation of water from the emulsion causes the particles to adhere, which in turn results in the reaction between the alkoxysilyl group (Si-OR), which has been stable in the polymer, and water to form silanol group (Si-OR).

≡Si-OR ＋ H2O → ≡Si-OH ＋ R-OH

The silanol groups thus formed react with each other to form a cross linked structure, resulting in the formation of durable film excellent in adhesion to the base material.

Si-OR ＋ Si-OR → ≡Si-OR≡ ＋H2O