Hony Engineering Plastics Limited

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Hony Engineering Plastics Limited
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Hony Engineering Plastics Limited

 [中国,China Hong Kong]

Business Type:Manufacturer

Main Markets: Africa , Americas , Asia , Caribbean , East Europe , Europe , Middle East , North Europe , Oceania , Other Markets , West Europe , Worldwide

Exporter:91% - 100%

Certs:ISO9001, MSDS, REACH, RoHS, FCC, FDA, Test Report, UL, ISO14001

Hony Engineering Plastics Limited
Home> Industry Information> Difference between Vespel SP-1 and Vespel SP-21

Difference between Vespel SP-1 and Vespel SP-21

March 27, 2023

Difference between vespel SP-1 and Vespel SP-21

SP21

Vespel SP-1 and Vespel SP-21 are both high-performance Polyimide materials produced by DuPont. The main difference between the two materials is their composition and properties.


Vespel SP-1 is a standard polyimide material that is commonly used in a variety of high-temperature applications. It has excellent thermal stability, high strength, and excellent wear resistance. It can operate continuously at temperatures up to 300°C (572°F) and can withstand brief exposure to temperatures up to 482°C (900°F).

Vespel SP-21, on the other hand, is a composite material that is reinforced with graphite and PTFE (Polytetrafluoroethylene) fibers. This reinforcement gives SP-21 improved wear resistance and lower friction compared to SP-1. SP-21 also has better dimensional stability and can operate at higher temperatures, up to 350°C (662°F).
Vespel SP-1
In summary, the main differences between Vespel SP-1 and Vespel SP-21 are that SP-21 has improved wear resistance, lower friction, better dimensional stability, and can operate at higher temperatures compared to SP-1.

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