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FFKM FF500B

KM-FF500B

Description:  

FF500B has excellent heat resistance, extensive medium resistance, low compression set and strong seal retention at extreme temperatures. It is copolymerized by tetrafluoroethylene monomer(C₂F₄), perfluoromethyl vinyl ether monomer(PMVE) and crosslinked monomer. The monomer at vulcanization point contains cyano group, which can be vulcanized with BOAP triazine.


Specification

ML(1+10)@121℃: 46-75
Fluorine: 72.2%
Density: 2.05g/cm3
Appearance: Transparent
Feature

Extensive oil resistance Extensive solvent resistance
Excellent plasma resistance
Excellent compression set
Excellent heat resistance, applicable temperature: -10 ℃~315 ℃


Product properties:  

Items Unit FF500B Test Method
Curing condition: 185*15min


(TS2)Scorch time
Sec
190 GB/T 16584
(TC50)Time to 50%cure
Sec
217 GB/T 16584
(TC90)Time to 90%cure
Sec
320 GB/T 16584
(ML)Minimum torque
lbf-in
0.55 GB/T 16584
(MH)Maximum torque
lbf-in
7.85 GB/T 16584
Press cure, test button:185℃*15min

Press cure, test button:175℃*30min

Post cure, test sheet:290℃*16H

Post cure, test sheet:290℃*16H

Shore A hardness
Point 73 GB/T 531
Tensile strength
Mpa 18.9 GB/T 528
Elongation
% 152 GB/T 528
Specific gravity
g/cm3 2.05 GB/T 533
Compression set 200℃@70hrs
% 18 GB/T 7759.1
Heating Aging, 70hrs@250℃, 70hrs@300℃



Hardness change
Shore A        -2 GB/T 3512
Tensile strength change
% -15 GB/T 3512
Elongation at break change
% +13 GB/T 3512

Standard formula:  

Recipe PHR
FF500B 100
N990 20
BOAP 1.2


Typical physical properties:  

Resistance to various chemical media reference table

Compound Code Test Method
Volume Expansion
Inorganic Acids ASTM D-573
A
Organic Acids
ASTM D-573 B
Alkalis
ASTM D-573
B
Alcohols
ASTM D-573
A
Aldehydes
ASTM D-573
A
Amines (RT)
ASTM D-573 B
Hot Amines(>70℃)
ASTM D-573
C
Ethers
ASTM D-573
A
Esters
ASTM D-573
A
Ketones
ASTM D-573 A
Steam
ASTM D-573
D
Strong oxidants
ASTM D-573
B
Hydrocarbons
ASTM D-573
A
Sour Gas
ASTM D-573
A
Lubricants
ASTM D-573
A
Tetrahydrofuran
     ASTM D-573    
    A    
Rate of volume change
A Rate of change<10%
B Rate of change<20%-30%
C Rate of change<30%-50%
D Rate of change>50%
Attention: C,D is not recommended.

Recommended process: 

FF500B can be mixed with a standard water-cooled two roll open mill. During the mixing process, the environment must be clean and the roller must be cooled sufficiently. After mixing, the rubber should be cooled as soon as possible.


Product Package:
Packed with aluminum plastic film, and each box weighs 1kg.


Attention:
The information provided by our company is as of the document registration date. The company and its related enterprises have not made any explicit or tacit guarantee and agreement on their liability for such information and use. All the above data and materials are obtained by professional laboratories through professional testing, and are the technical specifications of our products. This does not mean that our customers use different production processes for product inspection.

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