Understanding the Construction Process of Electronic Silicone Adhesive
(1) Pretreatment: The surface of the substrate must be sandblasted to reach Sa2.5 level.
(2) Clean the surface of the workpiece with a diluent.
(3) Adjust the coating viscosity with a dedicated matching diluent. The amount of diluent used is roughly as follows: airless spraying – about 5% (based on the weight of the coating); air spraying – about 15-20% (based on the weight of the coating); brush coating – about 10-15% (based on the weight of the coating).
(4) Construction methods for electronic silicone adhesive: airless spraying, air spraying, or brush coating. Note: During construction, the temperature of the substrate must be 3℃ above the dew point, but not higher than 60℃.
(5) Curing of electronic silicone adhesive coating: After application, it can be put into use after natural curing at room temperature, or dried at room temperature for 0.5-1.0 hours, then baked in an oven at 180-200℃ for 0.5 hours, and taken out to cool for later use.
Other construction parameters: - Density: approximately 1.08g/cm³; - Dry film thickness (one coat): 25μm; Wet film thickness: 56μm; - Flash point: 27℃; - Coating dosage: 120g/m²; - Painting interval: 8-24 hours at below 25℃; 4-8 hours at above 25℃. Storage period of the coating: 6 months. Beyond this period, it can still be used if qualified through inspection.
