Wholesale HR-70 70℃ PVC Flame Retardant Flexible Sheath Plastic Suppliers, Factory

HR-70 70℃ PVC Flame Retardant Flexible Sheath Plastic

HR-70 70℃ PVC Flame Retardant Flexible Sheath Plastic is a high-quality material based on PVC (polyvinyl chloride) specially designed for cable protection. Combined with flame retardant additives, it ensures stable performance at high temperatures of 70°C. The material is soft and has good flame retardant properties, which can effectively isolate external heat and fire sources and ensure the safe operation of the cable. Excellent flexibility allows the cable to be laid flexibly in complex environments.

Flame retardant PVC sheath material for wire and cable is a granular material prepared by mixing, plasticizing and granulating with polyvinyl chloride resin as the base material and adding plasticizers, stabilizers, flame retardants and other additives.

Model, brand, name, implementation standard and use

Model	trademark	Maximum core operating temperature (°C)	name	Enforce the standard	use
ZH-70	7031	70	70°C PVC flame retardant soft layer plastic	GB/T8815-2008	Core working temperature 70°C flame retardant PVC wire and cable sheath plastic
HR-70	7032	70	70°C PVC flame retardant soft layer plastic		Core working temperature 70°C flame retardant PVC flexible wire and cable layer layer plastic
ZH -90	9031	90	90°C PVC flame retardant soft layer plastic		Core working temperature 90°C flame retardant PVC power cable sheath layer plastic

Note: The relative density index and color are determined by the supply and demand sides through negotiation

Mechanical, physical and electrical properties

Pilot project	unit	Standard value
Pilot project	unit	7031	7032	9031
Tensile strength	≥MPa	15.0	12.5	16.0
Tensile strain at break	≥%	180	200	180
Impact embrittlement temperature	≤℃	-25	-30	-20
Volume resistivity at 20°C	≥Ω.m	1.0 X10⁸	1.0 X10⁸	1.0 X10⁹
Dielectric strength	≥MV/m	18	18	18
Thermal deformation	≤%	50	65	40
200°C thermal settling time	≥min	50	60	80
Oxygen index	%	26~36	26~32	26~36
Heat-aging properties
Thermal aging temperature	℃	100±2	100±2	100±2
Thermal aging time	h	168	168	240
Tensile strength after aging The maximum rate of change in tensile strength	≥MPa	15.0	12.5	16.0
	≤%	±20	±20	±20
Tensile strain at break after aging The maximum rate of change of tensile strain at break	≤%	180	200	180
	≤%	±20	±20	±20
Loss of quality	≤g/m²	23	25	15

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	140	160	170	175	180	175

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.

Coming From China, Marketing To The World.

Hangzhou Meilin New Materials Technology Co., Ltd. is China Wholesale HR-70 70℃ PVC Flame Retardant Flexible Sheath Plastic Suppliers and HR-70 70℃ PVC Flame Retardant Flexible Sheath Plastic Factory, we were 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.

Certifications