Cable Compound: Low Smoke Zero Halogen LSZH Materials for Cable Jacket

What Is LSZH Low Smoke Zero Halogen Materials?

Low Smoke Zero Halogen LSZH materials are high-performance flame-retardant materials composed of polyolefin blend resins mixed with flame-retardant hydroxide fillers, and they do not contain halogen elements. LSZH materials produce minimal smoke when burned and are free from halogens, making them safer in fire situations by reducing the generation of toxic smoke, thereby enhancing escape and rescue possibilities.

·Low Smoke Zero Halogen LSZH compounds are widely used as cable sheathing materials globally.

·LSZH stands for "Low Smoke Zero Halogen" a commonly used halogen-free flame-retardant material in cable sheathing.

·LSZH materials produce little smoke, are low in toxicity, and have minimal corrosiveness, demonstrating excellent fire safety performance.

·LSZH cables are commonly used in densely populated areas such as office spaces and public transportation systems.

Since 2011, Angreen has been developing low smoke halogen-free (LSOH) materials for various applications, including B1 cables, rail transit, building decoration, and data communication, in accordance with the requirements of the CRP (Construction Products Regulation) in Europe.
Angreen's low smoke halogen-free materials support cable compliance with CPR EN50575 classifications (B2ca, Cca, Dca, Eca) for burning tests.
LSZH sheath materials feature higher flame-retardant ratings and drop test ratings, exhibiting excellent processing characteristics and quality even under high flame-retardant performance.

Angreen's high-voltage Low Smoke Zero Halogen cable material solutions fully meet the low-friction LSZH requirements for temperature resistance and flame retardancy in high-voltage harnesses, satisfying ISO 6722 at 125℃.

Characteristics Of Low Smoke Zero Halogen Cable Material

Low Smoke: Produces minimal smoke during combustion, helping to maintain visibility during emergencies.

Halogen-Free: Free from chlorine, bromine, and other halogens, preventing the release of toxic gases during combustion.

High Flame Retardancy: Typically exhibits excellent flame retardant properties, slowing the spread of flames.

Eco-Friendly: Minimizes environmental impact during production and use.

Applications of LSZH Materials

Cables in Public Areas: Subways, airports, hospitals, schools, etc.

Cables for Electronic Devices: Such as computers, communication equipment, servers, etc., to reduce fire risks.

Cables for Transportation: Including airplanes, trains, cars, etc., to enhance passenger safety.

When selecting cables, LSZH materials are often used for sheathing and insulation layers to ensure that cables do not become sources of toxic smoke and gases during fires. The development and application of these materials represent a significant contribution to improving safety and environmental protection in the cable industry.
LSZH materials are extensively used in high-safety environments such as airplanes, trains, ships, data centers, and public places, where smoke and toxicity generated during combustion pose serious threats to personal safety. LSZH materials are made from special polymers without halogen additives, which are the main source of smoke and toxic gases in traditional materials. In contrast, LSZH materials utilize flame-retardant chemical formulations that significantly reduce smoke and toxic gas emissions during fires.
Low Smoke Zero Halogen LSZH compounds are widely used in cable sheathing. Cable manufacturers require materials that not only meet basic safety, flame-retardant, and mechanical performance criteria but also provide higher cost-effectiveness in large-scale production.

Cross-Linked Low Smoke Halogen-Free Materials and Categories

Cross-linked low smoke halogen-free flame-retardant composite polyolefin cable materials significantly enhance the mechanical properties, heat resistance, and environmental stress crack resistance of materials, broadening their application fields and improving reliability and service life, fully meeting the requirements of low smoke halogen-free regulations.

Radiation Cross-Linked Low Smoke Halogen-Free Materials: After radiation cross-linking, temperature ratings significantly increase, supporting high-temperature cables to meet 150℃ temperature rating flame retardant and long-term aging test requirements.

UV Cross-Linked Low Smoke Halogen-Free Materials: UV exposure of low smoke halogen-free materials is suitable for large-scale, efficient production of thin-walled cable insulation.

Silane Cross-Linked Low Smoke Halogen-Free Materials: A new cross-linking process developed based on silane cross-linking, which is not only highly efficient but also allows for convenient and rapid cross-linking.

Advantages of Angreen's Low Smoke Zero Halogen Materials

Excellent Flame Retardant Performance:
Fully supports fiber optic cables, power cables, and network cables in passing EN 50575 (B2ca, Cca, Dca) and GB31247 (excluding A) fire tests (different product names meet different fire test levels).

Higher Safety Performance:
Fully supports environmental testing for low smoke halogen-free cables, including crack and aging tests at high temperatures, and winding and impact tests at low temperatures.

Outstanding Abrasion Resistance:
Exhibits superior abrasion and scratch resistance compared to other materials under the same low smoke halogen-free testing conditions.

Good Processing Performance:
Meets high-speed extrusion requirements, ensuring consistent roundness and stability of wire diameter, minimal stringing, good color stability, and higher yield rates, guaranteeing batch stability and homogeneity.

Angreen's LSZH Sheath Material Solutions

We offer professional LSZH sheath material solutions designed for various application scenarios, with primary product offerings including:

High Flame Retardancy LSZH: Compliant with EU CPR regulations and China GB31247;

High Hardness LSZH: Hardness ≥65D or ≥98A; supports a wide operating temperature range of -40℃ to 125℃;

Low Friction LSZH: Low friction coefficient for easy on-site handling;

High-Temperature Resistant LSZH: Non-stick at 125℃ for 1000 hours;

High-Temperature Anti-Shrinkage LSZH: High-temperature cyclic shrinkage ≤5‰ at 85℃; low-temperature cyclic shrinkage ≤5‰ at -40℃;

High-Low Temperature Shrinkage LSZH: High-low temperature cyclic shrinkage ≤5‰ between -40℃ and 85℃; supports long-term use in a wide temperature range of -40℃ to 125℃.