Does the sealing liquid silicone have adhesive properties
Time:2024-07-04
Views:90
The epoxy resin sealing material is transparent and odorous, and the hardness after curing can reach a Shore A hardness of 90 degrees. However, after curing for a long time, epoxy resin can cause corrosion to circuit boards and electronic components. Furthermore, after the curing of epoxy resin, due to its hard texture, it is impossible to repair electrical appliances by peeling off the epoxy resin sealing adhesive.
Sealing liquid silicone is a two-component room temperature curing material with a ratio of 10:1 and 1:1. It can be cured at room temperature according to a certain ratio. The main function of two-component sealing liquid silicone is to seal, waterproof, moisture-proof, dustproof, and confidential insulation for circuit boards, power boxes, and circuit boards.
So Does two-component sealing liquid sillicone have adhesive properties?
Liquid silicone sealant, also known as electronic sealant, does not have strong adhesive properties and only has slight adhesion to the material. Due to the fact that electronic sealing silicone is a thermal insulation sealing material, the material itself contains a large amount of thermal conductive powder to meet the needs of heat transfer and dissipation. Electronic sealed silicone has the characteristics of low viscosity and good fluidity, but after curing, it does not have tear resistance, tensile strength, and elongation. Because the main function of liquid electronic sealing silicone is to seal against moisture, it is determined that silicone itself does not require performance. Another advantage is that when sealed electrical appliances require maintenance, it is more convenient to peel off the cured electronic sealing adhesive with tools. This is due to the poor tear resistance and zero adhesive performance of electronic sealing silicone. It can better protect electrical circuit components from damage.
Due to the lack of adhesive properties and low viscosity of electronic sealing liquid silicone, it is not suitable for use as an adhesive and can only be used for dispensing and sealing within a fixed power box.
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