FKM Precompound
► For bonding
► Good physical and processing properties
► High resilience, fast curing speed and good fluidity, which is more suitable for bonding with VMQ and making composite hose.
- Product Introduction
Technical Data
|
Suggested applications |
Product type |
Fluorine content |
S.G |
Mooney viscosity ML (1+10') at 121 ℃ |
TR10 |
Tensile strength |
Elongation at break |
M100 |
Hardness |
Compression set, 70 h at 200 ℃ |
Product description |
|
Unit |
% |
g/cm³ |
MU |
℃ |
MPa |
% |
MPa |
Shore A |
% |
||
|
O-ring Grade |
CT621 |
66 |
1.83 |
25 |
-17 |
14.7 |
170 |
7.1 |
75 |
15 |
Low Mooney, good compression set. |
|
CT641 |
66 |
1.83 |
42 |
-17 |
15.1 |
170 |
7.3 |
75 |
15 |
Good compression set. |
|
|
CT661 |
66 |
1.83 |
60 |
-17 |
15.4 |
170 |
7.3 |
75 |
15 |
For big product. |
|
|
CT753 |
68.5 |
1.86 |
50 |
-15 |
16.2 |
210 |
4.3 |
72 |
21 |
Increased fluorine content, better fuel and temperature resistance. |
|
|
CT853 |
69 |
1.87 |
50 |
-13 |
15.6 |
220 |
6.1 |
79 |
30 |
Balance fuel resistance and PV3307. |
|
|
CT945 |
70 |
1.9 |
45 |
-10 |
15.3 |
210 |
7.3 |
80 |
35 |
Excellent fuel resistance. |
|
|
General Mold |
CT643 |
66 |
1.83 |
41 |
-17 |
16.2 |
190 |
7.2 |
78 |
17 |
Balance process and compression set. |
|
CT655 |
66 |
1.83 |
52 |
-17 |
17.5 |
210 |
6.1 |
75 |
20 |
Better molding rhelogy. |
|
|
CT645 |
66 |
1.83 |
43 |
-17 |
16.2 |
250 |
5.1 |
71 |
22 |
Better release and hot tear properties, can be used for transfer and compression. |
|
|
CT637 |
66 |
1.83 |
33 |
-17 |
14.2 |
290 |
4.1 |
72 |
35 |
Better demolding. |
|
|
CTL635 |
66 |
1.83 |
27 |
-19 |
15.8 |
200 |
6.2 |
74 |
17 |
Better low temperature property. |
|
|
Bonding |
CT634 |
66 |
1.83 |
33 |
-17 |
14.9 |
220 |
5.7 |
72 |
30 |
First choise for bonding. |
|
CT754 |
68.5 |
1.85 |
42 |
-14 |
15.9 |
240 |
5.1 |
72 |
32 |
Better fuel resistance. |
|
|
CT654 |
66 |
1.83 |
55 |
-17 |
16.1 |
230 |
5.8 |
75 |
27 |
Better molding rhelogy. |
|
|
Fuel Hose Tubing |
CT835 |
69 |
1.87 |
27 |
-12 |
14.4 |
270 |
5.1 |
82 |
40 |
Better fuel resistance. |
|
CT625 |
66 |
1.83 |
27 |
-17 |
12.2 |
240 |
4.4 |
75 |
28 |
General grade. |
|
|
Peroxide |
CTG500 |
70 |
1.91 |
50 |
-6 |
21.2 |
230 |
4.8 |
76 |
24 |
Peroxider curable high fluorine gum with low swell in aggressive fluids. |
|
CTGL500 |
64 |
1.78 |
50 |
-30 |
20.5 |
220 |
2.8 |
70 |
25 |
Peroxider curable low temperature flexibility. |
|
|
CTGA200 |
66 |
1.81 |
25 |
-18 |
18.8 |
280 |
2.5 |
70 |
25 |
Peroxider curable gum with high elongation. |
Usage
► Mixing: first re-mix several times on the two-roll mixer, add vulcanizing agent, after absorb it set thickness to 0.5 mm-1 mm pass 8-10 times then film and store.
► Vulcanization: remix the rubber compound with vulcanizing agent and then produce pieces or cut into the required shape, and then press and vulcanize on the molds.
Package
► 20 kg per carton
► 500 kg per pallet
Storage
► Shall be put in dry and ventilate places. Validity is 1 year.
Details
The FKM compound rubber is obtained by adding MgO, Ca(OH)2, carbon black and accelerators to the FKM precompound and then mixing them. Therefore, we can regard the fluororubber precompound as a semi-finished product of the compound rubber. Like the FKM compound, the FKM precompound can also be divided into bisphenol vulcanization and peroxide vulcanization according to the different vulcanization methods, and can be divided into copolymer or terpolymer according to the different components of the raw rubber. The fluorine content of the copolymer is generally 66%, while the fluorine content of the terpolymer is generally not less than 68%. The performance of peroxide vulcanized rubber is generally better than that of bisphenol vulcanized rubber, and of course the price is more expensive. Like the compound rubber, the precompound rubber has excellent physical and mechanical properties, high temperature resistance, corrosion resistance, etc.
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