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SIC 500 joint closures are the most advanced heat-shrinkable closures available for the protection of cable joints in a telephone network.
Based on the Sinil technology of heat-shrinkable composite materials, SIC 500 closures have an excellent split resistance and are very craft friendly.
The glass composite structure of the closure offers superior resistance to mechanical abuse both during and after installation.
An integral metal layer which shrinks with the sleeve protects the joint from moisture vapour transmission.
SIC 500 joint closures are available in an extended size range having a joint capacity up to 800 pairs.
The kit includes a variable liner, which insulates, shapes and compacts the joint bundle, and the unique three finger clip with hot melt adhesive, which allows up to 4 cables at each end.
The SIC 550 range of joint closures uses the same composite heat-shrinkable sleeve as the SIC 500 range and a metal canister having a joint capacity up to 3600 pair.
Both kits are suitable for non-pressurised cables, aerial, buried or ducted, non-filled or jelly filled, with lead or polyethylene sheaths.

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