Silane Cross-linkable LSZH Compound Suppliers

Silane Cross-linkable LSZH Compound from Duoshang New Materials

Jiangsu Duoshang New Materials Technology Co., Ltd. is a Silane Cross-linkable LSZH Compound manufacturer based in Nantong City, Jiangsu Province, China. We specialize in polyolefin cable compounds rather than finished cables, supplying more than 50 formulations across eight product families from two production bases.

For cable plants that need low-smoke, halogen-free insulation with practical moisture-cure cross-linking, this range is designed for continuous production of long cable lengths on standard polyolefin extrusion lines.

Product Range and Application Fit

Silane cross-linkable LSZH compounds are supplied as a two-component system. Part A contains the silane-grafted polyolefin and halogen-free flame-retardant package; Part B is the catalyst masterbatch. After mixing and extrusion, the insulation cures through exposure to moisture, hot water or steam.

These formulations are part of our broader LSZH Compound line, which also includes irradiation cross-linked, UV cross-linked and thermoplastic LSZH options for different curing and service requirements.

Silane Cross-linking and Cable Line Integration

Silane cross-linkable LSZH compounds are processed with standard cable extrusion equipment. The main line requirements are accurate Part A/Part B metering, controlled melt temperature and a moisture-cure stage after extrusion.

• Metering: Part A and Part B should be dosed with gravimetric or calibrated volumetric feeders to maintain the specified masterbatch ratio.
• Extrusion: Standard polyolefin screws and insulation cross-heads are usually suitable; we review screw geometry, L/D ratio and temperature capability before confirming a recommendation.
• Cure: After extrusion, reeled cables are held in hot water, steam or a humid environment. Cure time is influenced by wall thickness, temperature and formulation.
• No accelerator required: Because cross-linking is moisture-initiated, the line does not depend on electron-beam equipment or radiation source capacity.
• Production flexibility: The same extruder can run different conductor sizes and long lengths without beam window restrictions, lowering overall production cost.

Material Selection, Storage and Configuration

We configure the compound around the applicable cable standard, conductor type, insulation wall thickness and required service temperature. For PV cables, for example, we supply a 125°C rated formulation. For building and grid cables, we supply Class B1/B2 grades with flame-retardant and low-smoke performance.

• Cable construction: conductor material, stranding, insulation thickness and core geometry affect extrusion speed and cure depth.
• Fire performance: B1/B2 projects require low heat release, reduced smoke toxicity, minimized corrosive emissions and no flaming droplets during combustion.
• Environmental performance: LSZH compounds are formulated without halogens and heavy metals, so combustion gases are less toxic and less corrosive than conventional PVC materials.
• Storage: Part B begins its reaction pathway after moisture exposure, so both components must be stored sealed and dry. We provide storage and shelf-life guidance with each supply.

Quality Assurance, Testing and Project Documentation

Our R&D center covers over 3,000 square meters and is equipped with more than RMB 35 million of R&D equipment. The team of more than 30 researchers includes doctors and provincial/municipal talent-program members, supporting formula development, material analysis, process testing and product optimization.

Production is located in two Jiangsu bases with a total area over 15,000 square meters and more than 10 compounding lines. We operate under 6S management and an ISO 9001 quality management system.

• Raw material inspection, compounding process control and final product testing.
• Mechanical, electrical, flame-retardant and smoke-performance evaluation according to the target cable standard.
• Test methods and sampling plans can be aligned with the customer before serial delivery.
• Delivery documentation: TDS, SDS, product specifications and relevant test/certification documents for project evaluation.

Information We Use to Configure Your Solution

Send the technical context with your enquiry, and we will recommend the grade, Part A/Part B ratio, processing window and trial plan.

• Target application and market: construction, power grid, PV or general industrial/infrastructure cable.
• Cable standard and fire classification, including B1/B2 requirements.
• Conductor size, insulation wall thickness and approximate line speed.
• Extrusion line configuration, including screw type, dosing/feeding system and temperature control.
• Cure facility available: hot water, steam sauna or humid environment.
• Service temperature requirement, such as the 125°C class for PV systems.
• Packaging and delivery requirements.

Frequently Asked Questions