Cable jelly (also known as filling compound, petroleum jelly, or cable gel) is a semi-solid, water-resistant substance used in coaxial and telecommunication cables to:
Prevent moisture ingress
Block water migration along the cable
Provide insulation and cushioning
Protect against corrosion
Material: Typically a petroleum-based gel or silicone compound, sometimes mixed with thixotropic agents to improve stability.
Texture: Thick, sticky, and semi-fluid; remains stable over a wide temperature range.
Color: Usually amber, clear, or yellowish.
Non-toxic and chemically inert, designed to be stable over decades.
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