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FKM Precompound

FKM Precompound

FKM Precompound

FKM Precompound is the copolymer of Hexafluoropropylene (HFP) and Vinylidene Fluoride, with curing system.
CategoriesFluoroelastomer FKM
BrandZheflon PVDF & Flurine FKM Manufacturer
ModelFLC Precompound
FeaturesNarrow molecular weight distribution
FormsWhite or light-yellow flake
UsesO-ring,Shaft seals, gaskets, extruded shapes
FOB portShanghai or Ningbo
Terms of PaymentL/C, D/A, D/P, T/T
Update TimeApr 24,2025
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Detail Information
Product Specification
Process safety instructions
Packaging and storage

General

Features

               Medium molecular weight distribution

Uses

Shaft seals, gaskets,O ring, extruded shapes, molded tubing

Forms

White or light-yellow flake

Items

Typical Value

Test Method

FLC-20

FLC-40

Physical Properties

Fluorine Content（mass%）

66


66

 

Density（g/cc）

1.78~1.84


1.78~1.84

ASTM D297

Mooney Viscosity

20~30


40-50

ASTM D1646 ML 1+10 at 121°C

Water content

0.15


0.15

ASTM D 5668

Solubility

Soluble in lower ketones and esters

 

Vulcanization Properties

T10（s）

<80


<100

ASTM D5289

T90（s）

<150


<270

ASTM D5289

Mechanical Properties

Tensile strength（MPa）

16.0


16.5

ASTM D412 Method A

100% Modulus

5.0


5.0

ASTM D412 Method A

Elongation at Break（%）

210


190

ASTM D412 Method A

Tearing Strength（KN/m）

21


21

ASTM D624

Hardness, Shore A

76


76

ASTM D2240, Type A

Compression Set

16


16

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


-10

ASTM D412 Method A

Elongation at Break change rate（%）

-8


-8

ASTM D412 Method A

Hardness change, Shore A

-1


-1

ASTM D2240, Type A 

 


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.. 

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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