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Fluorine rubber (FKM) is an elastomer composed of carbon (C) and fluorine (F) compounds and exhibits excellent performance such as heat resistance, ozone resistance, and chemical resistance

A copolymer of vinylidene fluoride (VDF), Hexafluoro propylene (HFP), and tetrafluoro ethylene (TFE) that is divided into binary (VDF+HFP) and ternary (VDF+HFP+TFE) depending on the number of monomers

Supplier

Huaxia Shenzhou社

We exclusively import and supply FKM of Huaxia Shenzhou, an affiliate company of Dongyue Group, which is the largest fluoropolymer manufacturer in China.

Product descriptions

Binary FKM (Copolymer)

The FKM Copolymer Gum-26 series is a binary copolymer of VDF and HFP with a fluorine content of 66% or more. After vulcanization, it has excellent mechanical performance, oil resistance, and heat resistance, and is used for gaskets, o-rings, and wire covering in aviation, rocket, missile, shipbuilding, and automobile fields.

ITEM 26 26M Test Method
Density 1.82±0.02 /
Mooney Viscosity,
ML(1+10),121℃ 		35-40 20-25 ASTM D1646
45-50 30-35
60-65 55-60
110-120 60-66
Tensile strength, MPa ≥ 13 ASTM D412
Elongation at break,% ≥ 180 190 ASTM D412
Compression Set (200℃, 70h),% ≤ 20 ASTM D395-03
Fluorine content,% 66 /
Characteristics General use Excellent workability such as extrusion and injection /

Ternary FKM (Terpolymer)

The FKM Terpolymer Gum-246 series is a ternary copolymer of VDF, TFE, and HFP. It has better heat resistance and chemical resistance compared to binary copolymer. It also has excellent mechanical properties and can be used for a long time at 275℃ and for a short time at 320℃. Oil resistance and acid resistance is better than FKM-26, and ozone, radiation, electrical, and flame resistance are similar to FKM-26.

ITEM 246 246G 246D Test Method
Density 1.86±0.02 1.89±0.02 1.82±0.02 /
Mooney Viscosity,
ML(1+10),121℃ 		25-30 50-60 55-62 ASTM D1646
45-50
55-60
65-70
Tensile strength, MPa ≥ 13 12 12 ASTM D412
Elongation at break,% ≥ 200 190 180 ASTM D412
Compression Set (200℃, 70h),% ≤ 25 30 20 ASTM D395-03
Fluorine content,% 68.5 70 66 /
Characteristics General use Excellent chemical resistance Excellent low-temperature flexibility /

Peroxide Curable FKM

Peroxide curable FKM has superior chemical resistance, acid resistance, steam resistance, etc. compared to bisphenol curable types with the same fluorine content.

ITEM 26L 246LD 246LG Test Method
Density 1.82±0.02 1.86±0.02 1.89±0.02 /
Mooney Viscosity,
ML(1+10),121℃ 		20-25 25-30 28-36 ASTM D1646
Tensile strength, MPa ≥ 15 ASTM D412
Elongation at break,% ≥ 190 180 180 ASTM D412
Compression Set (200℃, 70h),% ≤ 20 25 25 ASTM D395-03
Fluorine content,% 66 68.5 70 /
Characteristics Excellent steam resistance /

FKM Concentrated Dispersion (FKM-26MN)

FKM-26MN is a binary FKM dispersion and is also used for coatings or as an additive for plastic polymerization that require chemical resistance, oil resistance, and heat resistance.

Grade Apperarance Mooney Viscosity pH Solid Content Surfactant
Content
% %
26MN Milky liquid 27-33 6-8 30±3 3±0.3
52-58

FVMQ (1001/1002/1003/1004)

Fluorosilicon Rubber (FVMQ) is a fluorinated silicone rubber with a trifluoropropyl group in silicone rubber. It is characterized by improved resistance to fluids while having heat resistance and low-temperature flexibility of silicone rubber. It is an indispensable material for aviation, rockets, missiles, spaceflight, and other high-tech industries.

Category Unit 1001 1002 1003 1004 Test Method
Appearance / Transparent or yellowish Visual inspection
Molecular weight / (60±10)X10⁴ (80±10)X10⁴ (100±10)X10⁴ (120±10)X10⁴ ASTM D5296
Vinyl content mol% 0.2-0.8 GB/T 28610-2012
Low volatilization (150℃*3h) %, < 2 150℃*3h

FD2640(pre-compound)

FD2640 is a pre-compound rubber dispersed by adding a cross-linking agent BPA-F and a promoter BPP to FKM gum..

Category Unit Test Method Average Value
Moony's viscosity,
ML(1±10)121℃		 ML DIN53523 44
Shore A Shore A ASTM 2240 78
MH dNm DIN 53529 2.58
ML dNm DIN 53529 0.14
T10 Min:Sec DIN 53529 2:00
T90 Min:Sec DIN 53529 3:57
Ts2 Min:Sec DIN 53529 1:58
Density g/cm³ DIN EN ISO 1183 1.81
Elongation % DIN53504(S1) 191
Tensile strength MPa DIN53504(S1) 13