Flurine® FKM Precompound
Flurine® FKM Precompound
FLC-20, FLC-40

Item specifics

Wide molecular weight distribution
Shaft seals, gaskets, O-rings, extruded shapes, mo
White or light-yellow flake



Flurine®FLC-20 and FLC-40 are medium molecular weight distribution Fluoroelastomer, which is comprised of vinylidene fluoride (VF2) and hexafluoropropylene (HFP) added vulcanising/accelerating agents. 

Typical applications are in the automotive, fluid power and chemical industries.

Flurine has excellent high temperature resistance, oil resistance, and good long term deformation properties. It is suitable for making seals, gaskets, oil seals, extruded tubes, anti-vibration gaskets and so on.
Technical Specifications
FeaturesMedium molecular weight distribution
UsesShaft seals, gaskets,O ring, extruded shapes, molded tubing
FormsWhite or light-yellow flake
ItemsTypical ValueTest Method
Physical Properties
Fluorine Contentmass%6666
Densityg/cc1.78~1.841.78~1.84ASTM D297
Mooney Viscosity20~3040~50ASTM D1646 ML 1+10 at 121°C
Water content0.150.15ASTM D 5668
SolubilitySoluble in lower ketones and esters
Vulcanization Properties
T10(s)<80<100ASTM D5289
T90(s)<150<270ASTM D5289
Mechanical Properties
Tensile strength(MPa)16.516.5ASTM D412 Method A
100% Modulus5.05.0ASTM D412 Method A
Elongation at Break(%)210190ASTM D412 Method A
Tearing Strength(KN/m)2121ASTM D624
Hardness, Shore A7676ASTM D2240, Type A
Compression Set1616ASTM D395, Test B 70 hours at 200℃
Air-oven agingISO 188 After Dry Heat Aging;70 hours at 230℃
Tensile strength change rate(%)-10-10ASTM D412 Method A
Elongation at Break change rate(%)-8-8ASTM D412 Method A
Hardness change, Shore A-1-1ASTM D2240, Type A
Process Safety Instructions
1)Store and use all fluoroelastomers only in a well-ventilated area.
2)Do not smoke in areas contaminated with dust from fluoroelastomers.
3)Avoid eye contact. After handling fluoroelastomers wash any skin that came in contact with the product with soap and water.
4)Potential hazards, including evolution of toxic vapors, exist during compounding or processing under high temperatures. 
5)Before processing the fluoroelastomers, read and consult the MSDS, and follow all label directions and operation cautions..
Packaging And Storage
1)Fluoroelastomers be packed in PVC bags in the shape of rubber film, each bag weight 5KGS, and finally be put into a carton. Each carton contains 5 bags with net weight 25KGS.
2)It must be stored in a clean, cool, and dry place. The storage life is one year from the date of production. It must be re-inspected if over one year and only can use if qualified.
3)It is transported as non-dangerous chemicals. Avoid excessive vibration and far away from pollution, sunshine and water during the transport.