Lestosil SM solution is used in making (un)filled protective and antiadhesive elastic coats for various structures, pipes, devices, articles and parts employed within a broad rage of and at sharp drops in temperatures.
Lestosil SM-based varnishes, i.e. 40-50% solutions in toluene, ethyl acetate and oth., are used as protective coats in medicine and food industries.
- Trade name
- Siloxane block-copolymer LESTOSIL SM
- Standard documentation
- Specs.38.03.1.006-90
- Appearance
- Hard powder, totally soluble in toluene, butyl acetate and ethyl acetate.
- Technical specification
- 38.03.1.006-90
- Specifications
Key indices Values Intrinsic viscosity, dl/g 0,1-0,6 Density, g/cm3 1,05-1,06 Tensile strength, MPa 4-6 Elongation at break, % 250-600 Service temperatures, oC Минус 60 – плюс 250°С (кратковременно 300°С) Rubber-metal bond strength, MPa/cm2 2-3 Electric properties -dielectric strength, kV/mm 37-45 initial state 0.001 – 0.0011 weathered* 0.002 – 0.0023 dielectric constant initial state 2,0 – 2,9 dielectric constant weathered* 3,0 – 3,1 - volume resistivity, Ohm.cm initial state (1,4 – 1,7)•E15 - volume resistivity, Ohm.cm weathered* 2,6•E15 Water swell, % 0,04 High selectivity in liquid gas media separation Bioinertness may be implanted into live body Heat capacity, kJ/kg.K, approx. 1,5-1,8 Thermal conductivity h20, W/m.K 0,14-0,16 - Application manual
- Coat is brushed, sprayed on or formed by dipping from solution. It takes at least one day to cure at room temperature. The surface should be degreased or sandblasted before coating. Dry powder consumption rate approx. 200 g/m2. Can be laaded with metal oxides etc. up to 500%.