Electronic cover rubber to ensure their safe and stable operation of organic silicone, but improper use may also play an adverse effect.
After using the coating adhesive on the circuit board are covered, sometimes you may find just with the circuit board cover good fault It is without rhyme or reason., the reason is because the work site has condensed water, so in the coating before, to determine whether the circuit board is dry, then use the coating glue coating, it is best to put the use of silicone resin coating, silicone coated adhesive has good electrical properties, good bonding, stable and flexible at -50 DEG --250 DEG, instantaneous high temperature resistance of 225 DEG C. There are a little more important is the electronic products in some places is not covered, such as CPU, BGA and some of the chips, the calorific value is large, if coated with a layer of protective film, equivalent to wear a coat, unfavorable on heat dissipation.
The circuit board has a high demand for electronic coating glue, need to have characteristics of non yellowing, environmental protection, no corrosion, no halogen, flame retardant, with PCB cladding after can keep components and lines in extremely harsh working environment in low stress and protection of circuit board from erosion environment.