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Overview
 3M's
8420, 8430 and 8440 Series Splice Kits are cold
shrink splicing products using 3M's unique cold shrink
delivery system. The
products are supplied as pre-stretched tubes on a
removable core for efficiency and ease of installation.
The tubes are open-ended, rubber sleeves, which are
factory expanded and assembled onto removable plastic
cores. The removable core is unwound after positioning
the splice, allowing the tube to shrink into position
and form a moisture resistant seal. The live memory
action of the specially formulated material ensures a
permanent, durable environmental seal and insulation.
3M's 8420 and 8430 Series
insulators are made from EPDM rubber. 3M's 8440 Series
Silicone Insulators are made from specially formulated
high-temperature silicone rubber.
Applications
- Primary electrical
insulation for all solid dielectric (rubber and
plastic) insulated wire and cable splicing rated to
1000 volts.
- Physical protection
and moisture sealing for couplings, hoses,
connectors, and terminal lugs.
- Cable jacket and
sheath repairs.
- Environmental
sealing for communication connectors and other
non-electrical applications.
- Repair of
non-pressurized hoses and conduit.
- Corrosion protection
for fittings and couplings.
- Resists ozone and
ultraviolet light*.
- Resists fire - will
not support flame*.
- Resists fluid
splashes*.
- Operating
temperature range -66°F (-55°C) to 500°F (260°C)*
* 8440 Silicone
Rubber Series only
8420
and 8430 Series Selection (0-600V)
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