Page 348 - BOLA Catalogue

PEEK – Polyetheretherketone
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TECHNICAL INFORMATION
Partly crystalline thermoplastic that withstands high temperatures. Due to its unique proper- ties, PEEK is mainly used for high-value and highly stressable components. The high upper working temperature (+250 °C), the good chemical stability and resistance to hydrolysis as well as the high mechanical values of this material will allow PEEK to become the material of the future. PEEK components are commonly used as HPLC fittings, screw joints or as tubing. Its natural colour is brown, its price is considerably higher than that of PTFE or PFA.
PEEK is available in many different types, e. g. modified for self-lubricating bearings.
Materials - Chemical Resistance Please note:
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All information in our catalogue is based on current technical knowledge, experience and manufacturers’ data. Users should check the suitability of parts and materials described in the catalogue before purchase.
BOLA does not accept any warranty claims as to suitability and fitness of purpose of the materials and products described in this catalogue. Users should avoid making any assumptions on, or interpretation of, the data herein. Therefore we cannot provide warranty and cannot accept responsibility for any damage.
Categories of substances
Additionally, an overview stating the chemical resistance of all BOLA materials against many different substances from A like Accumulator Acid up to Z link Zinc Nitrates is available for download on our website in pdf-format:
http://www.bola.de/en/technical-information/bola-materials/material- properties.html
Trade names
Victrex® by Victrex VESTAKEEP® PEEK by Evonik
Classes of substances at +20 °C
PTFE
PFA
FEP
ETFE
ECTFE
PVDF
PP
PA
PS
PMMA
Aldehydes
+
+
+
+
+
+
°
°
–
–
Alcohols
+
+
+
+
+
+
+
–
°
°
Amines
+
+
+
+
+
°
°
°
+
–
Bases/Caustic solutions
+
+
+
+
+
+
+
°
°
–
Esters
+
+
+
+
+
°
+
+
–
–
Ether
+
+
+
°
°
°
°
°
–
–
Glycols
+
+
+
+
+
+
+
+
+
°
Ketones
+
+
+
°
°
°
°
+
–
–
Hydrocarbons, aliphatic
+
+
+
+
+
+
°
+
–
–
Hydrocarbons, aromatic
+
+
+
+
+
+
°
+
–
–
Hydrocarbons, halogenated
°
+
+
+
+
+
°
°
–
–
Mineral oils
+
+
+
+
+
+
–
+
+
°
Oxidizing agents, strong
+
+
+
°
°
+
°
–
–
–
Vegetable oils
+
+
+
+
+
+
°
+
+
°
Acids inorganic
+
+
+
°
°
+
+
–
+
°
Acids organic
+
+
+
°
°
+
+
–
°
+
Lubricating oils
+
+
+
+
+
+
+
+
+
+
Definitions and abbreviations:
+ Excellent chemical resistance – continuous exposure for more than 30 days does not cause any damage or only minor damages.
° Limited chemical resistance – depending on the plastic material, a continuous exposure for a longer period of time may cause damages such as cracks, decrease of mechanical strength, discoloration, etc. – Poor resistance – the plastic material can be deformed or destroyed.
By the way: BOLA offers custom manufacture. From 1 piece. Hotline +49 (0) 93 46-92 86-0 347