Pouring sealant was
A, product characteristics
Pouring sealant for organic silicone rubber two-component bonus system heat conduction potting glue, has the following features:
1, plastic materials in normal temperature conditions for a long time after mixing, but in heating conditions can be fast curing, especially to the use of automatic production line.
2, no corrosion of metal, resistant, high temperature resistant aging the gender is good. After curing in at a wide temperature range (60 ~ 280 ℃) hold in the elastic rubber, insulation performance is excellent.
3, curing process not contracting, have better waterproof and anti-aging properties.
4, with flame retardancy, flame retardant performance to UL94-V0 level, UL
Two, the typical application
For a high power electronic components, to heat and heat resistance to demand higher module power and circuit board potting protection. Such as switching power supply, drive power supply, automobile HID lamp module power supply system, ignition module power supply, home appliance controller, etc.
Three, use technology
1, according to 1:1 ratio weighing two components into the mixture mixing tank even, error can't more than 3%, otherwise, it will affect after curing performance.
2, will mix good glue material perfusion in need of the potting within the device, usually don't TuoPao vacuum pumping, if need to get high thermal conductivity, the proposal TuoPao vacuum after reperfusion. Room temperature or heat cure all can. Glue the solidifying velocity and curing temperature has the very big relations, in winter take a long time to curing, suggested the heating mode curing, under 80 ℃ curing 15 to 30 minutes, at ambient temperature normally takes 6-8 hours or so curing.
3 and temperature on the A/B is the mixture of operation has certain influence on stage. At high temperature environment is to shorten the operation period
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