ML-H9001B1 90℃ Halogen-Free Low Smoke Flame Retardant Class B1 Sheath Compound

ML-H9001B1 is a high-performance, halogen-free low smoke flame retardant (HFFR) thermoplastic sheath compound, specifically engineered for the wire and cable industry. This material is formulated using advanced polyolefin resins as the base, integrated with precise concentrations of non-halogenated flame retardants and smoke suppressants. It is designed to meet the rigorous Class B1 combustion requirements under various national and international fire safety standards. Operating effectively at a continuous temperature of 90℃, ML-H9001B1 ensures structural integrity and electrical insulation safety for power and data cables. During combustion, the compound generates minimal smoke and zero corrosive halogen gases, significantly increasing safety margins in densely populated or enclosed environments. The material is supplied in a pelletized masterbatch or compound form, optimized for consistent extrusion and surface finish on high-speed cable production lines.

ML-H9001B1: 90℃ Halogen-Free Low Smoke Flame Retardant (HFFR) Class B1 Sheath Compound

Core Advantages

Fire Safety Compliance: Achieves Class B1 rating, providing high resistance to flame propagation and heat release.

Halogen-Free Composition: Eliminates the risk of toxic gas emission (such as HCl) during fire incidents, protecting both personnel and sensitive electronic equipment from corrosion.

Thermal Stability: Sustains long-term operation at 90℃, resisting thermal aging and mechanical degradation over the cable's service life.

Process Efficiency: Optimized rheology for stable extrusion, ensuring uniform sheath thickness and a smooth external texture.

Product Characteristics

Technical Property

Value / Specification

Continuous Operating Temperature

90℃

Flame Retardant Rating

Class B1 (GB 31247 / Equivalent)

Tensile Strength

≥ 10.0 MPa

Elongation at Break

≥ 150%

Smoke Density (Dm)

≤ 150 (Low smoke generation)

Halogen Acid Gas Emission

0 mg/g (pH ≥ 4.3, Conductivity ≤ 10µS/mm)

Application Scenarios

Public Infrastructure: Sheathing for power and control cables in subways, airports, and railway stations.

High-Rise Construction: Vertical shaft cables and emergency circuit wiring in commercial and residential skyscrapers.

Data Centers: Insulation and jacketing for telecommunication cables requiring strict low-smoke and non-corrosive properties.

Industrial Facilities: Wiring systems for power plants and chemical factories where fire safety protocols are mandatory.

Storage and Handling Guidelines

Moisture Control: The compound is hygroscopic. It must be stored in a dry, ventilated warehouse. If the packaging is breached, pre-drying at 65℃-75℃ for 2-4 hours is required before extrusion.

Stacking and Environment: Keep the material away from direct sunlight and heat sources. Limit stacking height to prevent pellet compaction and deformation.

Extrusion Temperature Settings: Recommended processing temperatures range from 140℃ to 170℃ across the extruder zones. Excessive heat may lead to premature decomposition of the flame retardant additives.

Safety Note: Ensure the extrusion area is equipped with adequate localized exhaust ventilation to manage any incidental vapors during high-temperature processing.

Halogen-free and low-smoke products

1. Halogen-free and low-smoke cable material for power cables

The halogen-free low-smoke sheath material for power cable is made of EVA and POE as the main substrates, adding inorganic flame retardants, lubricants, antioxidants, etc., and is processed by mixing. The performance of this kind of product meets the requirements of GB/T 32129 standard, and the finished cable products can meet the requirements of GB/T 19666 standard, of which B1 grade products can meet the requirements of GB 31247 B1 level, and the drip can reach d0. The product has the characteristics of halogen-free acid gas emission and low smoke generation and is a safe and environmentally friendly flame-retardant polyolefin material that meets ROSH and REACH standards.

Grade, name, and use

trademark	Product name	density	Ki Index	use
ML-H9001A	90°C halogen-free, low-smoke flame retardant Class A sheath material	1.54	40	The power is sheathed by Class A sheathing material and is burned in bundles through Class A without an oxygen barrier
ML-H9001B	90°C halogen-free, low-smoke flame retardant class B sheath material	1.50	36	The B-grade sheath material of the power rope is burned in bundles by Class B, and the oxygen barrier layer is burned in bundles by Class A
ML-H9002B	90°C halogen-free, low-smoke flame retardant class B sheath material	1.52	36	Class B sheath material for control cables, which can be burned in bundles by multi-core control cables Class B
ML-H9001C	90°C halogen-free, low-smoke flame retardant grade C sheath material	1.49	32	Class C sheath material for power junction, which is burned in bundles by Class C
ML-H9001G	Halogen-free, low-smoke flame retardant oxygen barrier inner protective material	1.60	45	The inner protective material of the oxygen insulation layer for power cables is burned in a high-grade bundle with the outer protection
ML-H9001B1	90°C halogen-free, low-smoke flame retardant B1 sheath material	1.54	40	The B1 sheath material of the power cable is burned in bundles through the B1 level with the oxygen insulation layer
ML-J9001	90°C halogen-free low-smoke flame-retardant insulating material	1.49	34	Insulating material, 2.5mm2 through a single vertical burning

Processing technology

Processed by general extruder, L/D≥20, the recommended setting temperature of each extruder is as follows

Zone	District 1	2nd arrondissement	3rd arrondissement	4th arrondissement	5th arrondissement	Die head
Temperature °C	120	130	140	150	155	150

Marking, packaging, transportation, and storage

Logo: The packaging bag should be marked with: the name of the manufacturer, product variety and model, batch number, color, manufacturing date, net weight, this standard number, and affix the color mark;

Packing: (25.0±0.2) kg bag, polyethylene film inner bag, woven bag or kraft paper composite bag outer packaging, or other packaging quality (weight) quantity negotiated by both supply and demand;

Transportation and storage: cable materials should not be exposed to the sun and rain during transportation, and should be stored in a clean, cool, dry, and ventilated warehouse.

Typical values of halogen-free and low-smoke cable materials for
power cables

Item from		unit	index	ML-H9001A	ML-H9001B	ML-H9002B	ML-H9001C	ML-H9001G	ML-H9001B1	ML-J9001
density		g/cm3		1.54	1.50	1.52	1.49	1.60	1.54	1.49
Tensile strength		MPa	≥10.0	11.3	12.5	11.6	11.5	9.2	11.8	12.3
Elongation at break		%	≥160	117	188	182	213	86	175	186
hot old change sex Yes	Temperature x time	℃ xh		110±2°C X240h	110±2X X240h	110±2°C X240h	110±2°C X240h	110±2°C X240h	110±2°C X240h	100±2oC X168h
	Intensity changes Rate max	%	±30	15	12	12.1	13	18	11	7
	Elongation Rate of change max	%	±30	-10	-8	-10.8	-7	-10.5	-13	-6
热冲击试验 (130oC*1h)		--	No cracking	3kg passed	5 kg passed	3 kg passed	7kgil too	——	3 kg passed	——
Low-temperature impact embrittlement temperature		-25℃	15/30	Pass	Pass	Pass	--	-----	Pass
Low-temperature impact embrittlement temperature		-40℃	< 15/30	--	--	——	Pass	——	--	Pass
Thermal deformation 90°CMh		%	<50	5	6	8	5	8	10
Volume resistivity 20 °C		0. m	≥1X1010	4.3X10¹¹	8.3X10¹¹	8.9 X10¹¹	7.8 X10¹¹	7.1 X10¹¹	6.2 X10¹¹	5.2 X10¹²
Dielectric strength		MV/m	≥18	25	28	27	26	26	27	28
smoke dense degree	Flameless	--	≤350	273	294	286	319	223	258	332
smoke dense degree	There is a flame	--	≤100	79	84	69	84	57	69	88
Oxygen index		%	≥32	40	36	38	32	45	40	34
PH value		--	≥4.3	5.5	5.4	5.5	5.6	5.6	5.8	5.8
electrical conductivity		s/mm	≤10	1.9	1.3	1.1	1.4	1.5	1.7	1.7
Shao Di hardness HA		--	≥90	96	94	96	96	94	94	95

Processing technology

Processed by general extruder, L/D≥20, the recommended setting temperature of each extruder is as follows

Zone	District 1	2nd arrondissement	3rd arrondissement	4th arrondissement	5th arrondissement	Die head
Temperature °C	120	130	140	150	155	150

Marking, packaging, transportation and storage

Packing: (25.0±0.2) kg bag, polyethylene film inner bag, woven bag or kraft paper composite bag outer packaging, or other packaging quality (weight) quantity negotiated by both supply and demand;

Transportation and storage: cable materials should not be exposed to the sun and rain during transportation, and should be stored in a clean, cool, dry and ventilated warehouse.

Coming From China, Marketing To The World.

Hangzhou Meilin New Material Technology Co., Ltd. was established in July 1994 (formerly known as Zhejiang Lin'an Hongyan Plastic Factory). The company has two factories located at 619 Linglongshan Road and 259 Xingyu Street, Lingqiu Street, Linglong Industrial Park, Lin'an District, Hangzhou City. The registered capital of the company is 75 million yuan, covering an area of over 18000 square meters and a building area of over 30000 square meters. Currently, modern industrial factories and 18 advanced automated production lines have been built. The new factory area will be produced in 2021, making it the cleanest and most beautiful professional cable material manufacturer in the entire region, agreement conditions.

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