Professional China Vdf Copolymers - Low Temperature Resistant FKM – Huaxia Shenzhou

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Professional China Vdf Copolymers - Low Temperature Resistant FKM – Huaxia Shenzhou Detail:

Fluoroelastomer FKM Terpolymer Gum-246 series are the terpolymer of vinylidenefluoride, tetrafluoroethylene and hexafluoropropylene.Because of its high fluorine content, its vulcanized rubber has excellent anti oil property and high thermal stability.It also has good mechanical property and can be used in 275℃ for a long time, in 320℃ for a short time.The property of antil oil and anti acid is better than FKM-26, resistance of FKM246 to oil, ozone, radiation, electricity and flamer is similar with FKM26.

Execution standard:Q/0321DYS 005

FKM246-(2)

Quality Specification

Item	246D	Test Method/Standards
Density,g/cm³	1.82±0.02	GB/T533
Mooney Viscosity,ML(1+10)121℃	55-62	GB/T1232-1
Tensile Strength,MPa≥	12	GB/T528
Elongation at break,％≥	180	GB/T528
Compression Set(200℃,70h),％≤	25	GB/T7759
Fluorine Content,％	66	/
Characteritics and Application	Best low temperature flexibility and sealing,-20℃	/

Note:The above vulcanization systems are bisphenol AF

Product Use

FKM246 is widely used in aerospace, automotive, machinery, petrochemical, and other fields.For example, the aircraft static/ dynamic seals materials of hydraulic system and lubrication system;used in drilling equipment and oil pipelines;the chemical industry for equipment, flexible pipe connections, liner of pump or corrosion-resistant sealing material, made of pipes to carry solvents or other media, such as corrosion.

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Attention

1.Fluoroelastomer terpolymer rubber has good heat stability under 200℃.It will generate trace decomposition if being put at 200-300′C for a long time, and its decomposing speed accelerates at above 320℃, the decomposition products are mainly toxic hydrogen fluoride and fluorocarbon organic compound.When raw fluorous rubber encounters fire, it will release toxic hydrogen fluoride and fluorocarbon organic compound.

2.FKM cannot be mixed with metal powder such as aluminum powder and magnesium powder, or over10% amine compound, if that happens, temperature will arise and several element will react with FKM, which will damage the equipment and operators.

Package, Transportation and Storage

1.FKM is packed in PE plastic bags, and then loaded into cartons, the net weight of each carton is 20kg.

2.FKM is stored in clean, dry and cool warehouse.It is transported according to non-hazardous chemicals, and should keep away from pollution source, sunshine and water during transportation.

FKM246-(3)
FKM26-(4)

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