Petroleum jelly for cable filling: protection against moisture and corrosion
Petroleum jelly is commonly use as a cable filling compound in telecommunication and electrical cables to provide effective moisture resistance and corrosion protection.
Its semi-solid, water-repellent nature makes it ideal for filling the spaces within cables, especially in underground or outdoor installations.
where environmental exposure can damage cable performance. By using petroleum jelly for cable filling, manufacturers ensure long-term insulation, stability, and signal integrity.
It is especially beneficial in coaxial and fiber optic cables, where even small amounts of water can lead to signal loss. Choosing high-purity petroleum jelly helps maintain the reliability of cable systems over time.
what is cable Jelly ?
Cable jelly, or cable filling compound or thixotropic jelly, is a thick, gel-like substance use inside telecommunication and electrical cables to protect them from moisture, corrosion, and physical stress.
It is typically apply during the manufacturing process to fill the empty spaces between wires or fibers, helping to block water ingress and maintain signal stability, especially in outdoor, underground, or aerial cable installations.
Cable jelly acts as a moisture barrier, prevents internal corrosion, cushions internal components, and increases the overall lifespan and reliability of the cable.
It is commonly use in fiber optic cables, coaxial cables, and power cables. Unlike petroleum jelly in cosmetics or healthcare, cable jelly is not intend for skin contact and is formula specifically for industrial use.
Key Functions of Cable Jelly:
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Moisture barrier to prevent water intrusion
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Protects against corrosion of conductors and metal parts
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Reduces mechanical vibration and movement inside the cable
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Improves cable lifespan and reliability
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in fiber optic cables, coaxial cables, and power cables
Important Notes about cable and petroleum jelly
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Not safe for skin contact (unlike petroleum jelly)
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Can be petroleum-base or synthetic
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May require special cleaning during splicing or installation
