Oil and gas industry
Subsea oil sources are moving further down and the digging holes in deep sea levels will add more thermal stress to sealing materials. VESTAKEEP® PEEK shows the combination of mechanical toughness and relaxation to alternating pressure.
PEEK performance under HPHT conditions
In response to industry demand for higher performing polyether ether ketone materials, Evonik offers VESTAKEEP
5000 series PEEK compounds. These compounds are based on our speciality high
molecular weight polymer that offer excellent combination
Superior toughness, ductility and fatigue
Excellent chemical and wear resistance
Excellent long term performance under HPHT
and sour gas conditions
Easy to process and machine parts
Flame retardance, low smoke and toxicity
Better seal performance with VESTAKEEP® PEEK
The ductile nature VESTAKEEP
PEEK offers the right performance combination for back-up rings and seals in a seal pack application. In such applications the elastic recovery of VESTAKEEP
PEEK leads to a perfect seal with no leakage. By comparison, competition PEEK’s
elastic recovery is much lower due to permanent plastic deformation normally associated with a less ductile material. VESTAKEEP
PEEK grades, thus offer exceptional performance under severe conditions
such as chemicals (sour gas), high pressure, high temperature (HPHT), dynamic loads and complex assemblies.
VESTAKEEP® PEEK offers superior ductility, crack resistance, toughness, low temperature Impact and higher mechanical performance at elevated temperatures than competitive PEEK grades.
L4000G, 5000G, 4000GF30, 4000CF30
L4000G, 5000G/ GF / CF
L4000G, 5000G, 4000GF30 /CF30, 5000CF30, 4000FP, 5000FP