D4926 Two-component silicone sealant

D4926 Two-component silicone sealant

Details

D4926 Two-component silicone sealant

 

Product features:

D4926 is a kind of double component silicone rubber, which is cured at room temperature and can be heated quickly. Its characteristics are as follows:

Before curing, good fluidity, the operation time is moderate, good self-decoration, convenient operation and use;

good resistance to high temperature and low temperature performance, after curing can be used under -50℃~+200℃;

good electrical insulation, arc resistance and shock resistance, long time protection of electronic components and welding points;

Good water resistance, ozone resistance, earthquake resistance, aging resistance, can effectively prevent the infiltration of water vapor, to maintain long time sealing performance;

good thermal conductivity, can guarantee the effective heat dissipation of electronic components and batteries.

 

Application:

Widely used in the new energy automotive power lithium battery PACK, electronic components, waterproof, heat sealing cushion;

Used in various electrical equipment potting, bonding, positioning, sealing and waterproof.

 

Typical product performance (not used as a product standard)

No

Item

Technical index

Inspection method

Before curing

1

Appearance

A component  B component

/

White fluid    Dark gray fluid

2

Viscosity (mPa.s,25℃)

A component   1000-1200

B component   1000-1200

GB/T 2794

3

Applicable period (min,25℃)

≥90

/

4

Curing time (min,>45℃)

≤50

/

5

Curing time (h,25℃)

≤4

/

After curing (After 24 hours at room temperature)

6

Appearance

Dark gray black elastic rubber

/

7

Density(g/cm3)

1.35±0.05

GB/T 13477

8

Shore A hardness

42-50

GB/T 531.1

9

Tensile strength (Mpa)

≥0.35

GB/T 528

10

Volume resistivity ( ΩNaN)

1x1014

GB/T 1692

11

Breakdown voltage strength (Kv/mm)

18

GB/T 1695

12

Dielectric constant /1MHz

2.8

GB/T 1693

13

Thermal conductivity (W/(m.K)

≥1.0

/

14

Flame retardant grade

V-0

GB/T 2408

 


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