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Product

FKM pre-compound

Detailed description

FKM pre-compound is a functional masterbatch produced by pre-mixing fluorocarbon elastomer (FKM) gum with bisphenol AF (vulcanizing agent) and BPP accelerator. It contains no acid acceptor, reinforcing filler or processing aid, and is a "semi-finished" pre-dispersed intermediate.

 

Key Advantages

Excellent dispersion – Pre-disperses the small amounts of curing agent and accelerator into the rubber matrix, solving the problems of dusting and poor dispersion common with powder additives during mixing.

Simplified batching – In plant compounding, simply add this pre-compound together with additional gum, acid acceptors (MgO, Ca(OH)₂), carbon black, etc. into the internal mixer to quickly prepare a full compound.

Consistent batches – The precise ratio of curing agent/accelerator in the pre-compound ensures consistent cure characteristics for each batch of the final compound.

Scorch safety – The pre-dispersed masterbatch design helps improve processing safety.

Convenient storage – Stable for long-term storage; ready to use with the complementary components after opening.

 

Typical Applications
As an intermediate for FKM compounds, used to produce various products such as automotive oil seals, O-rings, fuel system seals, chemical gaskets, etc.

 

Curing Type Polymer Type Product F% S.G.  Mooney Viscosity Tensile Elongation Compression set  TR10  Application
g/cm3 ML1+10 @ 121℃ Mpa % 200℃*70hr  ℃
Bisphenol curing precompound O-ring and gasket grade
Copolymer TA-201C 66 1.81  20 12.90  180 18 -17 O-ring or gasket
Copolymer TA-251C 66 1.81  25 13.50  200 17 -17 O-ring or gasket
Copolymer TA-301C 66 1.81  30 14.40  206 17 -17 O-ring or gasket
Copolymer TA-401C 66 1.81  40 14.10  190 16 -17 O-ring or gasket
Copolymer TA-451W 66 1.81  45 14.00  200 16 -17 O-ring or gasket
Copolymer TA-551W 66 1.81  55 14.30  180 15 -17 O-ring or gasket
Copolymer TA-601C 66 1.81  65 14.20  190 18 -17 O-ring or gasket
Copolymer TA-601W 66 1.81  65 13.90  210 18 -17 O-ring or gasket
Terpolymer TB-201C 68.5 1.85  25 13.70  245 27 -14 O-ring or gasket
Terpolymer TB-401C 68.5 1.85  41 14.60  230 25 -14 O-ring or gasket
Terpolymer TB-401F 69 1.87  45 14.00  180 25 -13 O-ring or gasket
Terpolymer TB-601C 68.5 1.85  61 14.50  210 27 -14 O-ring or gasket
High Fluorine Terpolymer
Terpolymer TF-201C 70.00  1.90  25 13.10  232 30 -7 O-ring or gasket
Terpolymer TF-601C 70.00  1.90  55 15.90  170 28 -7 O-ring or gasket
Metal bonding grade
Copolymer TAI-201C 66 1.81  20 12.50  240 19 -17 Oil seal, O-ring or gasket
Copolymer TAI-251C 66 1.81  25 14.20  300 32 -17 Oil seal, complicated bonding product
Copolymer TAI-351C 66 1.81  35 14.50  240 22 -17 Oil seal, complicated bonding product
Copolymer TAI-351T 66 1.81  35 13.80  270 27 -17 Oil seal, complicated bonding product
Copolymer TAI-401C 66 1.81  45 14.30  280 20 -17 Oil seal, complicated bonding product
Copolymer TAI-601C 66 1.81  65 15.50  320 33 -17 Oil seal, complicated bonding or thick product
Terpolymer TBI-201C 68.5 1.85  25 14.60  260 27 -14 General compression molding product
Terpolymer TBI-401C 68.5 1.85  45 15.30  190 23 -14 General compression molding product
Low temperature
Terpolymer TAL-271C 65.5 1.79  27 15.60  200 20 -20 Extrusion and  molding product
Terpolymer TAL-551C 65.5 1.79  55 17.50  180 16 -20 General compression molding product
Fuel line hose
Copolymer TAE-251C 66 1.80  25 12.90  300 18 -17 fuel line hose
Terpolymer TBE-151C 69 1.83  15 10.30  290 23 -12 Low permeability fuel line hose bonded with THV
Terpolymer TBE-251C 69 1.87  25 13.90  330 21 -12 Low permeability fuel line hose