Directions for use: Surface to be coated should be thoroughly cleaned prior to coating in order to ensure that satisfactory adhesion to the substrate is achieved. It should be free of moisture, flux residues, dirt, wax, grease, oil and other contaminants. Contamination under the coating may become corrosive and lead to assembly failure.
SILICOAT can be applied by spraying, brushing or dip coating. The liquid is in ready to use condition. However, over a period of extended time, viscosity change can occur due to solvent evaporation. In such a case, the viscosity can be adjusted by addition of Thinner/Stripper 'CTS 05'. The thickness and uniformity of the coating depends on the operator's technique and must be determined by trials with the method concerned.
Spraying - Bulk: SILICOAT is suitable for use in manual spray guns as well as selective coating equipment
Spraying - Aerosol: The can should be held at an angle of not more than 45° from the vertical and at a distance of 20 to
25 cm from the surface to be coated.
Brushing: Use a brush having soft nylon bristles. Care must be taken not to re-apply on partially cured surface in order to avoid bristle marks.
Dip coating: The board assemblies should be immersed in the dipping tank in the vertical position for approximately 10
seconds and then withdrawn at a suitable rate (to be determined by trials) to ensure that an even film covers the entire
surface.
Curing Process: The coating will air dry tack free in 15 to 20 minutes, curing fully in 24 hours. The curing time can be accelerated by curing at room temperature for 2 hours followed by curing in an air circulating oven @80°C for 1 hour. This process will also ensure that maximum coating properties are achieved.
Repair: The cured coating may be removed by soaking and cleaning with Thinner/Stripper 'CTS 05'. Component replacement may be accomplished by localized desoldering/soldering directly through the coating. Re-apply the coating on the repaired area.
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