Supply of high-power LED lens filled silicone potting

?? Project Technical parameters before curing (A component) Appearance colorless liquid Viscosity mPa s (25 ℃) 1500 before curing (B component) Appearance colorless liquid Viscosity mPa s (25 ℃) 1000 than the column using 1: 1 mixture viscosity mPa? s (25 ℃) 1200 typical curing conditions 25 ℃ × 12h or 80 ℃ × 1h operating time (25 ℃) 90min after curing refractive index (25 ℃) 1.41 transmittance (%, 450 nm)> 95 cone penetration (mm / 10) 130 ~ 180 Second, the recommended process: different packaging processes, suggested a different ratio, it will get better results. 1, the weight ratio of A: B = 1: 1 ratio with glue, for 8 minutes. 2, vacuum degassed for 10 minutes. 3, prior to dispensing, please stand and a lens at 130 ℃ preheat 60 minutes in addition to wave. 4, the first 80 ℃ bake 1 hour and then heated to bake 120 ℃ 2 hours curing segment bubbles can effectively solve the problem to improve the yield.