Drag Material - What is Rulon?

[Meanwhile]

The following is from a fly fishing reel site.  Can anyone advise what Rulon is?  A teflon knockoff perhaps?

The drag surface of the Terrapin is made up of stacked Rulon discs, a material rather new to the fly reel industry that has unbelievable tolerances. Rulon is rated for CONSTANT operating temperature ranging from –400*F to 550*F and has zero water absorption! Rulon is by far a better drag surface choice over carbon fiber and cork.

[Tightlines667]

https://www.mcmaster.com/#rulon/=1b98ukr

We discussed this material in a few different threads back when we were exploring needle bearings, Teflon, Delron, or Rulon washers for under the main gear on star drags.

http://alantani.com/index.php?topic=23746.0

http://alantani.com/index.php?topic=22461.0

http://alantani.com/index.php?topic=17972.0

http://alantani.com/index.php?topic=11443.0

http://alantani.com/index.php?topic=7652.0

http://alantani.com/index.php?topic=12464.0

http://alantani.com/index.php?topic=12409.0

http://alantani.com/index.php?topic=15510.0

http://alantani.com/index.php?topic=13367.0

Hope that helps?

John

[STRIPER LOU]

I have heard of it being used for impellers in water pumps. I believe my outboard motor's impeller is made from Rulon.

............Lou

[Tiddlerbasher]

I thought that Rulon was PTFE with added fibres - Okuma used it alot in their baitcaster reels - maybe a while back

[STRIPER LOU]

I believe your correct Chris. It looks like the inner pump housings are made of this and there's several different grades.

The impeller is made of Viton. I don't know what I was thinking. Oh well, this flu bug has given me brain fry.

............Lou