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Flurine® M series fluoroelastomer

Flurine®  M series fluoroelastomer

Flurine® M series fluoroelastomer

Commonly used in the automotive, hydraulic, electrical and chemical industries.
CategoriesFluoroelastomer FKM
BrandZheflon PVDF & Flurine FKM Manufacturer
ModelM228,M728,M928
FeaturesNarrow molecular weight distribution
UsesShaft seals, gaskets, O-rings, extruded shapes
FormsWhite or light-yellow flake
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Update TimeJun 14,2024
Detail Information
Description
Flurine® M series is a relatively narrow molecular weight fluoroelastomer copolymerized with vinylidene fluoride (VF2) and hexafluoropropylene (HFP). 

It is commonly used in the automotive, hydraulic, electrical and chemical industries. It has outstanding mechanical properties, very low compression set rate and moderate scorch time. It has excellent resistance to oils, fuels, aliphatics, aromatic hydrocarbons, lubricants and most inorganic acids.
Technical Specifications
General
Features
Narrow molecular weight distribution
Uses
Shaft seals,gaskets,O-rings,Extruded shapes
Forms
White or light-yellow flake
Items
Typical Value
Test Method
M228
M728
M928
Physical Properties
Fluorine Content(mass%)
66
66
66
Density(g/cc
1.78~1.84
1.78~1.84
1.78~1.84
ASTM D297
Mooney Viscosity
20~45
60~85
≥100
ASTM D1646 ML 1+10 at 121°C
Water content(%)
<0.15
<0.15
<0.15
ASTM D 5668
Vulcanization Properties
T10(s)
<110
<90
<70
ASTM D5289
T90(s)
<240
<210
<180
ASTM D5289
Mechanical Properties
Tensile strength(MPa)
14.0
14.5
15.0
ASTM D412 Method A
100% Modulus
5.0
5.2
5.4
STM D412 Method A
Elongation at Break(%
190
180
170
ASTM D412 Method A
Tearing Strength(KN/m)
21
22
22
ASTM D624
Hardness, Shore A
70~80
70~80
70~80
ASTM D2240, Type A
Compression Set
16
15
15
ASTM D395, Test B 70 hours at 200℃
Air-oven aging
ISO 188 After Dry Heat Aging;70 hours at 230℃
Tensile strength change rate(%)
-10
-8
-5
ASTM D412 Method A
Elongation at Break change rate(%)
-8
-6
-6
ASTM D412 Method A
Hardness change, Shore A
-1
-1
-1
ASTM D2240, Type A 
Thermal Properties
TR10(℃)
-17
-17
-17
ASTM D1329
Brittleness Temperature(℃)
-30
-30
-30
ASTM D2137
Chemical resistance Properties
Resistance to liquids
3 # standard oil
Volume change rate(%)
+2
+2
+1
ASTM D471 72 hours at 150℃
Mass change rate(%)
+1
+1
+1
ASTM D471 72 hours at 150℃
Formulation
Curing condition
Polymer            100      MT carbon black,N990   30
Calcium hydroxide    6        Magnesium oxide         3
Fluorocure-5#        2.5
Press
Oven
6min at 177°C
24h 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.

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