Just about everyone has heard of Teflon, the common name of a specialised class of a PTFE fluoropolymer engineering plastic that is resistant to practically every chemical known to man. The spectacular physical qualities of Teflon include a surface as slippery as ice, to which no substance will adhere unless specially treated. But Teflon (a trade name for PTFE) is only one member of a broader family of PTFE plastics that can be custom-formulated to deliver superb engineering characteristics required by industrial engineers.
One branch of the PTFE family that is especially useful as a bearing and wear surface material is the Ticomp family. |
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In one demanding recent Australian application, Ticomp S was used on 370mm (14.5in) diameter shafts as an alternative to conventional filled Teflon PTFE rotary seal arrangements on 14 large recirculating pumps used by an Australian power generating company seeking optimum reliability. After more than 500 hours operation, the Ticomp S seals were removed and inspected. There was no marking of the hard steel shaft, no deformation of the seal itself and little evidence of wear on the seal. The Ticomp S seals continued to perform with exceptional wear life, with fewer maintenance shutdowns required as a result. |
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Ticomp S
- Excellent wear properties
- Excellent Chemical resistance
- Constituents FDA approved.
- For high PV and rotary seal application
Ticomp SD
- Excellent chemical resistance, closely matching that of virgin PTFE, with outstanding resistance to hot concentrated sulphuric acids, hot caustic soda and concentrated sulphuric acid.
- Service temperature under load rated up to 210C, depending on media, loads and speed
- Excellent ductility of the alloy combined with low friction, which optimises adhesive wear resistance
Ticomp BG
- Good chemical resistance, similar to virgin PTFE
- Not abrasive, suited to hard and soft metal counter faces
- Excellent creep and deformation resistance at high temperature
- Dissipates heat
- Used for high temperature applications were deformation resistance is required, such as Deckel Seals
Ticomp HT
- Excellent creep and deformation resistance at high temperature
- Chemical resistance similar to virgin PTFE
- Dissipates heat
- Also not abrasive, suited to hard and soft metal counter faces
SMS300
- Excellent long-term stability
- High purity with low out gassing in vacuum
- Excellent electrical insulation properties
- Outstanding wear resistance
- Good chemical resistance
- Low specific gravity
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These five Ticomp materials often command a higher price per kilogram than less effective materials, naturally enough. However, this is offset with greatly improved life and performance when correctly specified for a particular application. |
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We would like to congratulate Fred Fung on 30 years service with Dotmar EPP
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