What is the function of circuit board sealing adhesive? How to use it?
Apr 07,2023 Hanast
Circuit board sealing adhesive, also known as electronic sealing adhesive, can be used for electronic devices or components that require packaging protection. It has stable dielectric insulation and is an effective guarantee to prevent environmental pollution. At the same time, it can eliminate stress caused by impact and vibration in a large temperature and humidity range, and stabilize the normal operation of the equipment.
To understand the basic performance, if misoperation occurs during use, it can affect its performance. Here are the correct methods for using circuit board sealing adhesive:
1. Before mixing: First, thoroughly stir component A and component B in their respective containers;
2. When mixing: the weight ratio of component A to component B should be followed at 1:1, and the mixture should be stirred evenly;
3. Defoaming: After mixing the rubber material, it should be vacuumed for 3-5 minutes; (Note: A small amount of bubbles remaining on the surface of the adhesive solution when vacuum pumping is stopped is a normal phenomenon, and will naturally disappear under normal pressure);
4. Sealing: The mixed adhesive should be poured into the poured product as soon as possible to avoid thickening and poor fluidity of the adhesive in the later stage;
5. Curing conditions: Store at room temperature for 24-48 hours