Pib Self Amalgamating Tape

Pib Self Amalgamating Tape Material: PIB rubber Color: black Structure: non-adhesive self-fusing Thickness: 0.50 mm / 0.75 mm Width: 19 mm / 25 mm / 38 mm / 50 mm Use: cable sealing and pipe protection Contact Us

PVC Electrical Tape Company is a manufacturer of pib self amalgamating tape for cable joint sealing, telecom moisture protection, outdoor connector waterproofing, and metal pipe corrosion protection. Made from PIB rubber, the tape contains no pressure-sensitive adhesive. After controlled stretching and half-lap wrapping, the layers self-fuse into a continuous moisture barrier around PE-sheathed cable sleeves, low and medium voltage cable repairs, pipe welds, and exposed electrical connection points where water entry is a long-term risk.

Product Photos

Applications

• Telecommunication cable moisture sealing around outdoor and underground joint areas.
• PE-sheathed communication cable sleeve end wrapping where water entry must be reduced.
• Low voltage insulation sealing for cable jacket repair and electrical maintenance work.
• Medium voltage cable sealing support where application thickness and test requirements are confirmed.
• Waterproof wrapping for antenna cables, feeder cables, sensors, and exposed connectors.
• Inner moisture barrier layer for cable joint kits before outer mechanical protection.
• Metal pipe corrosion protection around welds, joints, fittings, and local repair sections.
• Waterproofing support for electrical components used in damp industrial environments.

Benefits

1. Fuses into a continuous PIB rubber layer without pressure-sensitive adhesive.
2. Helps reduce water paths at splice shoulders, PE sleeves, and exposed connectors.
3. Leaves less residue risk because sealing comes from rubber fusion, not glue transfer.
4. Wraps closely around uneven cable jackets, lugs, pipe welds, fittings, and joint transitions.
5. Supports electrical insulation with dielectric strength and volume resistivity reference testing.
6. Uses 50% half-lap wrapping to build a controlled double-layer moisture barrier.
7. Helps protect pipe joints and weld areas from corrosion caused by outdoor moisture.
8. Works as an inner sealing layer before outer mechanical protection is added.

Product Overview

PIB rubber gives this tape a different working behavior from adhesive-coated electrical tape. The roll is supplied with a removable interleave film to keep the surface clean before use. Once the tape is stretched and overlapped, the polyisobutylene rubber flows into the previous layer and forms one sealed rubber mass. There is no glue line to dry, lift, or transfer onto the cable jacket after cutting.

Thickness selection depends on the shape of the joint and the sealing thickness required. The 0.50 mm grade is easier to stretch around smaller telecom joints, antenna cable connections, PE sleeve ends, and uneven connector shoulders. The 0.75 mm grade builds rubber mass faster on larger cable joints, pipe welds, outdoor fittings, and repair sections where a stronger moisture barrier is needed. In both cases, correct tension and overlap usually matter more than simply adding extra turns.

For production control, we do not only check appearance and roll dimensions. Typical factory reference tests include dielectric strength around 32-40 kV/mm, volume resistivity >=1 x 10^13 ohm.cm, elongation at break >=700%, tensile strength around 1.8-2.5 MPa, and water absorption <=0.06%. These values help support telecommunication cable moisture sealing, low voltage insulation sealing, and medium voltage cable sealing when the final application thickness and system requirement are confirmed.

How does PIB self amalgamating tape create a moisture seal?

PIB tape does not seal well by loose wrapping. It needs stretch. During application, the tape is normally stretched to about 2x its original length, or until the width narrows visibly while the rubber remains intact. Each turn should cover about half of the previous turn. This 50% overlap builds wall thickness and avoids a straight channel where moisture can travel through the wrap.

For cable joint sealing, the wrap should begin before the exposed section and continue 25-50 mm beyond the protected area. That extra end coverage helps reduce edge water entry. The cable jacket or pipe surface should be free from oil, loose dust, standing water, and sharp edges. If the tape is relaxed, poorly overlapped, or applied over contamination, small air gaps can remain and reduce long-term sealing performance.

Technical Data Sheet

When should PIB rubber tape be selected instead of ordinary self amalgamating tape?

PIB rubber tape is the right choice when the main task is moisture sealing with electrical insulation support. Many self-amalgamating tapes look similar before use, but the compound decides where the tape performs best. A non-adhesive self-fusing tape made from PIB is well suited to cable jackets, PE sleeves, outdoor connectors, and pipe joints where water resistance and conformability are more important than color marking or simple bundling.

It should not be treated as standard PVC electrical tape for outer wrapping only. It is also different from silicone self-fusing tape used mainly for high-temperature flexible repair, and different from EPR-focused materials used in high-voltage termination systems. This grade is better matched to cable joint sealing, waterproof electrical connection wrapping, telecom cable moisture protection, and metal pipe corrosion protection.

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FAQ

Is PIB self amalgamating tape adhesive?

No. It does not use a normal pressure-sensitive adhesive. The PIB rubber fuses to itself after stretching and overlapping, forming a sealed rubber layer.

What overlap ratio is recommended?

A 50% half-lap overlap is recommended for most sealing work. Each turn should cover half of the previous wrap to build a uniform waterproof barrier.

Can it be used for telecom cable joints?

Yes. It is suitable for telecom cable joint moisture sealing, PE-sheathed cable protection, and outdoor connector waterproofing when applied with proper stretch and overlap.

Is it the same as PVC electrical tape?

No. PVC electrical tape usually uses adhesive and is often used for outer insulation, bundling, or color identification. PIB tape is a self-fusing rubber sealing layer for moisture protection.