ASLONG Semi-Conductive Self-Adhesive Tape for Cables — Professional Cable Shielding & Jointing Tape

ASLONG Semi-Conductive Self-Adhesive Tape for cables is a specialty cable shielding and jointing tape designed to control the electric field, provide a reliable conductive interface between cable insulation and metallic screens, and seal cable joints and terminations. The tape typically combines a semi-conductive compound (carbon-filled or conductive polymer) with a pressure-sensitive adhesive backing. When wrapped around cable interfaces, it creates a smooth, conformal semi-conductive layer that eliminates local field enhancements, reduces partial discharges, and ensures stable long-term performance in medium- and high-voltage cable accessories.

This tape is widely used for cable jointing and termination, stress control in medium- and high-voltage power cables, shield restoration, splice insulation transition layers, and accessory insulation. Typical industries include power utilities, renewable energy (wind/solar farms), industrial power distribution, rail and metro systems, oil & gas and petrochemical plants, and telecommunications infrastructure. ASLONG's solutions are engineered to meet the demanding conditions of these sectors, offering robust performance for indoor and outdoor installations.

Key features of a high-quality semi-conductive self-adhesive tape include: a controlled semi-conductive surface to manage electric stress; stable pressure-sensitive adhesion for long-term contact with common cable insulations (XLPE, EPR, PVC); good conformability and elongation for complex shapes; resistance to aging, moisture, and hydrocarbons; and a wide operating temperature range suitable for field conditions. ASLONG manufactures tapes with multiple thickness and width options and can provide material data, test reports, and customized formulations to meet specific electrical and environmental requirements.

Best-practice installation steps: 1) Prepare the surface by cleaning and drying the cable insulation to remove contaminants, grease, or moisture. 2) Start wrapping from the cable insulation edge, applying the tape under moderate tension to ensure intimate contact—typically with 30–50% overlap. 3) Build the required number of layers for stress grading or shield restoration as specified by the cable/accessory design. 4) Smooth each wrap to eliminate air pockets and wrinkles; finally apply a protective overwrap or insulating tape if required. In cold weather, condition the tape at room temperature before application for optimal tack. Always follow the cable manufacturer and accessory supplier instructions and ensure the shield is properly grounded after installation.

ASLONG (Welllink Guangdong New Material Co., Ltd.), founded in 2000, offers global supply, customization, and technical support for semi-conductive self-adhesive tape for cables. We provide multiple widths, thicknesses, and roll lengths, and can tailor formulations, adhesive strengths, and packaging to project needs. ASLONG operates a modern 10,000+ m² production base and exports to Europe, North America, Asia and Africa. For technical datasheets, sample requests, certifications (tests available on request: electrical, aging, RoHS/REACH compliance), pricing, or to discuss agency opportunities, contact us via our website https://www.aslong.cc or email king@aslong.cc. Our engineering team can advise on selection, installation guidance, and acceptance testing to meet your project specifications.