Flurine®PC series is peroxide-cured fluoroelastomer, copolymerized with vinylidene fluoride (VF2), hexafluoropropylene (HFP), and bromine-containing or iodine-containing fluoroolefin monomers. Usually used in automotive, hydraulic applications, electrical and chemical industries. It has excellent processability and mechanical properties, excellent resistance to high-temperature steam. In addition, only a very short curing time is required.

General

Features

Peroxide vulcanization. Short second cure time. High liquidity

Uses

Shaft seals, oil seals, gaskets, O-rings. Extrusion or calendering

Forms

White or light-yellow flake

Items

Typical Value

Test Method

P228

Physical Properties

Fluorine Content（mass%）

66

Density（g/cc）

1.78~1.84

ASTM D297

Mooney Viscosity

20~45

ASTM D1646 ML 1+10 at 121°C

Water content

0.15

ASTM D 5668

Vulcanization Properties

T10（s）

<60

ASTM D5289

T90（s）

<240

ASTM D5289

Mechanical Properties

Tensile strength（MPa）

16

ASTM D412 Method A

100% Modulus

5.0

ASTM D412 Method A

Elongation at Break（%）

200

ASTM D412 Method A

Tearing Strength（KN/m）

22

ASTM D624

Hardness, Shore A

73

ASTM D2240, Type A

Compression Set

38

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（%）

-20

ASTM D412 Method A

Elongation at Break change rate(%)

-20

ASTM D412 Method A

Hardness change, Shore A

2

ASTM D2240, Type A 

Thermal Properties

Glass Transition Temp, Tg（℃）

-20

ASTM D1329

Brittleness Temperature（℃）

-30

ASTM D2137

Chemical resistance Properties

Resistance to liquids

3 # standard oil

Volume change rate（%）

+10

ASTM D471 72 hours at 150℃

Mass change rate（%）

+2

ASTM D471 72 hours at 150℃

Formulation

Curing condition

Polymer            100       

MT carbon black,N990    30

DPB25（45%）      3.0 

TAIC（70%）      4.3

HT290             0.5

Press

Oven

6min at 177°C,0.5°

4h at 230°C