Flurine® High Mooney Fluoroelastomer
Flurine® High Mooney Fluoroelastomer

Item specifics

Peroxide vulcanization. Short second cure time. Hi
Shaft seals, oil seals, gaskets, O-rings. Extrusio
White or light-yellow flake



Flurine® 26120 and 26140 are high Mooney Fluoroelastomer, which is comprised of vinylidene fluoride (VF2) and hexafluoropropylene (HFP), frequently used in many industries including automotive, fluid power, appliance and chemical industries.

It has excellent mechanical strength, good demoulding properties and low compression set. It is resistant to oils, fuels, aliphatic series, aromatic hydrocarbons, lubricants, and most mineral acids.
Technical Specifications
FeaturesHigh Mooney viscosity
UsesGaskets, oil seals, diaphragm, sheets
FormsWhite or light-yellow flake
ItemsTypical ValueTest Method
Physical Properties
Fluorine Contentmass%6666
Densityg/cc1.80~1.821.80~1.82ASTM D297
Mooney Viscosity110~129130~160ASTM D1646 ML 1+10 at 121°C
Water content0.060.06ASTM D 5668
SolubilitySoluble in lower ketones and esters
Vulcanization Properties
T10(s)<80<70ASTM D5289
T90(s)<150<140ASTM D5289
Mechanical Properties
Tensile strength(MPa)14.014.5ASTM D412 Method A
100% Modulus5.86.2ASTM D412 Method A
Elongation at Break(%)170160ASTM D412 Method A
Tearing Strength(KN/m)2122ASTM D624
Hardness, Shore A7878ASTM D2240, Type A
Compression Set1716ASTM D395, Test B 70 hours at 200℃
Air-oven agingISO 188 After Dry Heat Aging;70 hours at 230℃
Tensile strength change rate(%)+4+2ASTM D412 Method A
Elongation at Break change rate(%)-3-3ASTM D412 Method A
Hardness change, Shore A0+1ASTM D2240, Type A
Thermal Properties
Glass Transition Temp, Tg(℃)-20-20ASTM D1329
Brittleness Temperature(℃)-30-30ASTM D2137
Chemical resistance Properties
Resistance to liquids3 # standard oil
Volume change rate(%)+1+1ASTM D471 72 hours at 150℃
Mass change rate(%)+1+1ASTM D471 72 hours at 150℃
FormulationCuring condition
Polymer 100 MT carbon black,N990 30
Calcium hydroxide 6 Magnesium oxide 3
Fluorocure-5# 2.5
6min at 177°C24h at 230°C
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.