IOTA 4926 Silicone sealant for new energy automotive safety power
Product features:
IOTA 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 (Ω.cm)
|
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.
