TEF KOTE™

Competitive advantage through high release, and corrosion resistance
Description

Applications

 

  • Friction Reduction
  • Corrosion Protection
  • High Release and Lubrication Film

Features

 

  • Available in wide temperature range
  • Can be tailored for specific needs and applications
  • Well known industry-wide

Technical Data Sheet

 

TEF KOTE™ is known around the world for its non-stick capability and chemical resistance in industrial applications. This coating has a variety of uses and has several types that can be tailored to meet your specific demands, from corrosion to high release, and even thread protection. We will work with you to find the right coating that suits your needs.

Friction Reduction

TEF KOTE™ has one of the lowest known coefficients of friction possible (as low as 0.02 at 400,000psi). This excellent characteristic reduces wear of metal surfaces and extends service life by creating a new thin smooth surface.

Corrosion Protection

TEF KOTE™ can also be adapted for corrosion protection. This is one of the most common uses for this coating, due to it being almost completely inert and having several chemicals tests including 15% H25 (Hydrogen Sulfide).

High Release & Lubricant Film

TEF KOTE™ is highly recommended due to its non-stick surface for reducing adhesion as well as lubricating wear points preventing seizing of moving components.

Wide Temperature Range

TEF KOTE™ can withstand temperatures from 250°C (-420°F) to 315°C (600°F).  It is exceptionally resistant to weather, sunlight (UV) and salt water.

Electric Submersible Pumps or ESP’s are one application where TEF KOTE™ is in service in North America.  When Coal Bed Methane or CBM fields are produced they also produce scale and asphaltenes that attack and build on the surface of the ESP’s.  To combat this problem TEF KOTE™ (PTFE) was applied to the pump stages dramatically improving the surface finish of the cast product and also providing a non-stick surface that reduces the scale build up, thus improving product service life.

 

Technical Information

 

1. PTFE (Polytetrafluoroethylene)

Generally used as a nonstick coating, but it also has an intermittent working
temperature up to 316°C/600°F. It has an exceptionally low coefficient of friction,
good abrasion resistance and good chemical resistance.

 

2. FEP (Fluorinated ethylene propylene copolymer)

This type provides a nonporous film that has an excellent chemical resistance, low friction, excellent nonstick properties.  The maximum operating temperature is 232°C/450°F.

 

3. PFA (Perfluoroalkoxy)

Similar to FEP this excellent nonstick coating provides the nonporous film with an intermittent working temperature of 288°C/550°F.  It also exhibits greater toughness than PTFE or FEP, making this an excellent candidate for a variety of uses, particularly for chemical resistance.

 

4. ETFE

This coating displays excellent chemical resistance and can operate intermittently at 199°C/390°F. This coating is the toughest of the fluoropolymers and can be applied in film builds up to 1000 micrometers or 40mils.

 

Coating Selection Guide

Required Property

Better

Best

Chemical Resistance

PTFE or ETFE

FEP of PFA

Corrosion Resistance

PTFE or ETFE

FEP or PFA

Abrasion Resistance

PTFE or FEP ETFE or PFA

 

Heat Resistance

PFA

PTFE

 

High Release

PFA

FEP or FTFE

 

 

 

 

 

 

 

TEF KOTE

TEF KOTE from Evolution Oil Tools Inc

 

 

 

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