..\image\CG_LOGO_G.gif (5281 bytes) Fluoroelastomer Precompounds

                 

Technical Information

 

Description: curatives incorporated fluoroelastomer copolymers or terpolymers

Appearance: off-white, non-transparent slabs
Main grades and Applications
CG-A361C:
Excellent mold flow, good metal bonding and scorch safety
Improved mold release, less mold fouling
Recommended for compression or transfer molding of O-rings, gaskets.
 
CG-A401C:
Excellent mold release, good scorch safety
Recommended for compression or transfer molding of O-rings, gaskets.
 
CG-F2462P:
Excellent mold release, good scorch safety.
Recommended for sealing applications that require improved solvent resistance and permeation resistance to fuels, also for fuel tube extrusion
 
CG-F2602AP:
Excellent mold flow, easier mold release, good scorch safety
Recommended for sealing articles with muti-configuration

Customized fomulating are available for customer's specific application.
Typical properties      (Note: not for specification purpose)
Grade CG-A361C CG-F2462P CG-A401C CG-F2602AP
Gumstock properties
Solubility soluble in low melecular weight ketones, some ester
Chlorine Content, % 66 69 66 66
Specific Gravity 1.82 1.88 1.82 1.82
Mooney Viscosity ML 1+10 @ 121 OC 30 40 42 38
Recommended Vulcanization Formulation for test
Precompounds                  100 phr 
MT Carbon Black (N 990)  30 phr 
Ca(OH)2                           6 phr
MgO                                 3 phr
Grade CG-A361C CG-F2462P CG-A401C CG-F2602AP
Reological Properties (moving die rheometer, 177oC, 6 min.)
ML, N.m 0.22 0.28 0.30 0.31
MH, N.m 1.95 1.66 2.92 2.29
T90 1'49" 1'57" 1'55" 1'55"
Ts2 0'59" 0'52" 0'55" 0'57"
Physical properties of vulcanizate
press cure 6 min. @177oC
post cure 24hr. @ 230oC 24hr. @ 230oC / 12hr. @ 200oC
Tensile Strength, MPa 14.3 14.0 14.0 14.0 / 13.0
Elongation at Break, % 230 240 190 230 / 240
Hardness, Shore A 77 79 77 76
Compression Set after 70hr. @ 200oC aging, % 16 14 15 16
Processing
  • Our precompounds could be mixed with conventional fillers and other aids by rubber processing equipment.
  • Fillers and other additives should be mixed uniformly, then added in precompounds
  • Processing methods:compression moulding, transfer molding. Additionally, F2462P and F2602AP could be used in extrusion, A361C could be used in injection moldining
Package:  

Net 25 kgs in carboard cartons.

Home --- About Us ---- Products List --- Contact us

ChenGuang Research Institute of Chemical Industry (Int'l-trade Dept.)
Add: Apt. 103, Bldg. 13, Jindu Garden, No. 526, Shuhanzhonglu Rd., Chengdu, 610036 China
Tel: 86-28-86085466, 87540095 (direct line) Fax: 86-28-87541076 E-mail: info@chenguang-chemi.com