A, use the transparent electronic potting glue

Transparent electronic potting glue is a kind of transparent type and molding curing two-component silicone potting products. Heat curing, has the characteristics of the faster the higher curing temperature. Don't produce any by-products in the curing reaction, for a variety of materials has good bonding effect. Used in electronic accessories fixed and insulation, electronic accessories and PCB substrate, moisture-proof, waterproof, LED display lights electronic product packaging, and other general insulation moulding.

Second, the transparent electronic potting glue features

1, rubber blend under the conditions of the storage time is longer, but under the condition of heating fast curing, especially for the use of automatic production line.

2, temperature resistance, good resistance to high temperature aging. After curing in the wide temperature range (60 ~ 250 ℃) to keep the rubber elasticity, excellent insulation performance.

3 no shrinkage, curing process, has better waterproof and anti-aging performance.

4, low viscosity, good fluidity, the bubble is good, can be cast to the subtleties, can be convenient to make potting complex electronic components.

After 5, detachable resistance, sealing components remoable for repair and replacement, and then use the pouring sealant for repair can be a trace.

Three, transparent electronic potting glue technical indicators

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.

Fourth, transparent electronic potting glue used method

Will A, B two groups from A weight than said above, mix and stir to mix well, after vacuum deaeration or stand for the electronic components, and about 1.5 hours after filling and sealing surface curing.

Five, transparent electronic potting glue matters needing attention

1, add molding silicone potting glue should be sealed storage. Mix good rubber should be finished in 8 hours, avoid to cause waste.

2, the following chemicals can make transparent adhesive solution contact electronic potting glue not curing:

1) containing heavy metals such as tin, lead, mercury, chromium ion of materials: such as tin catalytic condensation type silicone rubber and PU, PVC, containing tin solder, etc.;

2) materials containing nitrogen, phosphorus and sulfur compounds, such as sulfur and sulfide and sulfur rubber materials, amine compounds, and material containing amine.

In use process, please pay attention to avoid contact with the above material.