4926 Silicone sealant for new energy automotive safety power
Details
4926 Silicone sealant for new energy automotive safety power
Product features:
4926 is a kind of double component silicone rubber, room temperature curing, can be heated fast curing. Its characteristics are as follows:
Before curing, good fluidity, the operation time is moderate, good self deaeration, convenient operation and use;
good high and low temperature resistance, after curing can be used for a long time under -50℃ ～+200℃；
good electrical insulation, arc resistance and shock resistance, long time protection of electronic components and welding points；
good thermal conductivity, can guarantee the effective heat dissipation of electronic components and batteries.
Application:
Widely used in 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 800～1000 | GB/T 2794 |
B component 800～1000 |
/ | 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） | 1.25±0.05 | GB/T 13477 |
8 | Hardness (Shore A) | 30～40 | 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） | ≥0.8 | / |
14 | Flame retardant grade | V-0 | GB/T 2408 |
Note:
1. in the use of cylindrical 18650 battery will not affect the battery self pressure relief valve open.
2. in cylindrical 18650 when the battery is used with the reasonable module mechanism can play any position of a single battery failure does not affect the role of the surrounding batteries.
