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Teflon Coating on Aluminum

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Q. Can aluminum be Teflon coated for low-friction applications and if so, how do I specify the process? Also, what are some sources? If not Teflon, then are there other dry (non-migrating) lubricant treatments for aluminum? Thank you.

Gary L. Reynolds
- Valencia, California


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A. Many kinds of Teflon can be applied to a few thousands thick. It is a baked product, so you have to make sure that the aluminum does not lose its properties at that temp. Not knowing your application, there is a 50-50 probability that it will not work well for you.

A high dollar option is electroless nickel containing Teflon particles. An excellent product that will stand up to most any desired use.

James Watts
- Navarre, Florida


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A. Gary:

Yes, aluminum can be Teflon coated. It must be anodized or hardcoat anodized first. There is also a dry lube process that can be performed after anodizing. If you have any other questions, please feel free to E-Mail me.

Regards,

Bob Bramson
B&M Finishers / Prismatic Stainless Steel

Kenilworth, New Jersey



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A. Aluminum can be dry lubricated in a number of ways.

1)Teflon coatings which are cured at 700 ° F.

2)Resin bonded dry film lubricants which use PTFE and/or MoS2 with cures from room temperature up to 500 °F.

3)PTFE impregnated anodize or hardcoat. This can also be used as a base for a topcoat of 1 or 2.

Each method has advantages and disadvantages. Contact me to discuss further.

Chris Jurey, Past-President IHAA
Luke Engineering & Mfg. Co. Inc.

Wadsworth, Ohio


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Q. BOB BRAMSON

where can I get any knowledge about the machine which can coat Teflon or selenium oxide onto aluminium drum?

BULENT «ELDK
plastic film - izmir, turkey


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A. You can Teflon aluminum with DuPont PFA, PTFE, ETFE, TEFLON S, and FEP. All have different properties and different cure temps. It depends on what usage and environment the piece is going to be used for. You also can use Ausimont's Halar ECTFE. Another process could be to anodize, then use Nituff Teflon.

Josh Sonju
Kalispell, Montana, USA


June 4, 2011

Q. Will deeply appreciate if you know/recommend a product or process to install colorless/transparent 5 to 10 mil Teflon coating inside 4" aluminum tube without changing the high luster of aluminum surface.

Abdullah Kazi
President & CEO - San Jose California USA

September 16, 2012

Q. Dear Sirs,

I was wondering can we coat our aluminum moulds by teflon.

in short, the working conditions of Aluminum mould is continuously on 60 °C, and we are using water based silicone to prevent the adhesion of products into the aluminum mould. And as I was searching the TEFLON Coating, There has an idea come to my mind. I want to ask EXPERTS is it possible to coat teflon on our aluminum molds ?

I'm looking forward to see your comments and help

Thanks a lot

Mehmet Topcu
footwear - Nizip,TR,Turkey



February 4, 2013

Q. We are developing a ballhead used for tripod in photography. We would like to have a low friction surface on the ball. The coated ball must be fixed by pressing into a plastic negative surface.
Do you suggest a PTFE coating or something else?
Many thanks,

Laszlo Novak
- Balatonalmadi, Hungary
  ^- Privately contact this inquirer -^


February 4, 2013

A. Hi Laszlo. Both surfaces are wear surfaces, so both must be made of materials appropriate for use as wear surfaces.

Saying that the other one is 'plastic' probably doesn't offer enough information, except for me to suggest that the usual best approach is a hard surface against a different and softer surface. So, a bit of a guess, but I think chrome plating, electroless nickel plating, or teflon impregnated hard anodizing would be best for the ball. Good luck.

Regards,

pic of Ted Mooney Teds signature
Ted Mooney, P.E. RET
finishing.com
Pine Beach, New Jersey

February 24, 2013

Q. I want a low friction coating on the outside of an aluminum hub [on crankshaft] to resist friction & wear from an outside crankcase seal. Apparently little oil gets there and the seal wore a groove in the old hub. I now have a new hub & seal. I didn't see any of the posts directly applying to my application.
Thanks,

Brian Gavin
- Ann Arbor, Michigan
  ^- Privately contact this inquirer -^



July 5, 2013

Q. I am making fusion welding dies for the socket fusion welding of plastic tubes. The dies are aluminum and the dies get to 500 degrees f.

What is the proper Teflon and application process for this coating?

Bob B
- Portsmouth, New Hampshire, USA
  ^- Privately contact this inquirer -^


July 12, 2013

A. PTFE, spray, but your application is pretty demanding so some testing and re-application may be needed.

blake_kneedler Blake Kneedler
Santa Clara, California
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