A, LED transparent silicone purposes

This product is dedicated to the high power LED device of the filling and sealing, high light transmittance, high flexibility and good ultraviolet aging resistance, suitable for high power LED and SMD LED potting glue and lens populated, is an ideal production of high-power LED packaging products.

Second, the LED transparent silica gel properties

RXD301 bonus is the type of the average refractive index of silicon rubber products, has the features:

1. Do not contain solvents, environmental pollution-free;

2. Excellent high and low temperature resistance, can be used for a long time under - 50-250 ℃;

3. The product has good liquidity, potting to fine point, quick curing deep;

4. Excellent product after curing pervious to light performance;

5. Ultraviolet performance products.

Three, LED transparent silicone technology index

Product model 3300 1300 before solidification

A: B 10:1 1:1

Color transparent transparent appearance

Viscosity (Mpa) s) 3000 + 500 3000 + 500 A

B) 0.1 2000 + 500

Density (g/cm3) 0.98 0.98 A

0.9 0.98 B

Operating time (min) 50 plus or minus 10 to 50 + 10

Curing time (h) to 8 + 1 to 8 + 1

After curing Shore hardness to 18 + 2 to 30 + 2 A

Waterproofing of IPX6 - IPX8 IPX5

Tear strength (1.8 1.0 KN/m)

Tensile strength (Mpa) 1 + / - 0.2 0.2

The elongation at break (%) 150 + 30, 110

The electrical characteristics of the flame retardant grade UL94 - VH UL94 - VH

Coefficient of thermal conductivity (W/(m K) 0.3 or 0.3 or higher

Heat resistance (℃) - 50-250

Volume resistivity (Ω. Cm) 1014 or more

The breakdown voltage (kv/mm) of 15 or more

Dielectric voltage (50 hz), 2.7 to 3.3

Dielectric loss (50 hz) of 0.02 or less

Note: the parameters in the table colloid viscosity, color, transparency, hardness, etc according to the customer's demand.

The four, LED transparent silica gel using method

(1) according to usage accurately according to A certain quality of > > A part A and part B > quality such as;

(2) A and B beautiful foot points mixed in dry container, stir well let stand after defoaming or vacuum removing air bubbles;

(3) to be encapsulated original clean, dry, mixed plastic strain, make its infiltration completely;

(4) will be encapsulated chip curing in the oven. Can be change by changing the temperature curing speed, recommended conditions as follows: first, curing 2 h under 100 ℃, then curing 4 h under 150 ℃.

Five, the attention LED transparent silicone

1. This kind of product is a non-dangerous goods, according to general chemical transportation;

2. Please store the product in a cool and dry place, shelf life for six months;

3. Part A and part B must be kept sealed, after opening has not used up still must cover letter, avoid contact with moisture in the air.

4. Before packaging, should maintain the LED chip drying;

5. The product is prohibited to contact oxygen, phosphorus, sulfur, acetylene, peroxide and metal compounds, such as lead, tin, cadmium avoid cause catalyst poisoning effect curing effect.