alan tani @ alantani.com fishing reel repair rebuild tutorial Replacing cork drag system in an old Fin Nor-30 with new cork."What Glue to Use"
Reel Repair by Alan Tani
December 14, 2017, 06:29:33 PM *
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Author Topic: Replacing cork drag system in an old Fin Nor-30 with new cork."What Glue to Use"  (Read 3636 times)
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Robert Janssen
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« Reply #15 on: October 24, 2017, 12:42:07 PM »

Jurelometer, sorry maybe I misunderstood, but then I don't follow fly reels much. The only cork drags I have seen, including both Fin-Nor and Ambassadeur, have been pure cork granulate.

Cork granulate sheets are inexpensive and widely available. IKEA used to sell (still do?) a pack of 3 mm thick, roughly 18" x 12" sheets as placemats for a few bucks. Thicker cork drink coaster discs too. Maybe hobby stores and such places sell cork too.

...this posses the question, is there CF sheets thicker than 1mm available that suit drag washer material, and were from. cheers Don.

Yes, but not easily available. 1 mm is still thick enough to be preferred over 0.3 mm or 0.5 mm. If that is what is available through Dawn or Ebay, then go with that.

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« Last Edit: October 24, 2017, 12:43:56 PM by Robert Janssen » Logged
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« Reply #16 on: October 24, 2017, 01:11:08 PM »

    You're correct.....a lot of "older' off-highway equipment used cork-faced clutches (as well as brake discs) that ran in oil. Usually ATF, and applied constantly by a pump, spraying the disc......and also circulated  through a cooler. Not sure, anymore, what the usual operating temperature was supposed to be, but, if you touched any of the components...you got blisters ! Those type of discs lasted for years..unless they "ran dry" ("operator error !), and then they would burn up in a matter of hours.
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Donnyboat
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« Reply #17 on: October 24, 2017, 04:08:04 PM »

They were using cork round cones to drive shearing plants for many years, the cone with a round metal fly wheel, neats foot oil was used to make them grip, we used to flood the cone with it, took a while to soke the neetsfoot oil up, but it would grip really good, cheers Don.
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Don, or donnyboat
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« Reply #18 on: October 24, 2017, 05:42:35 PM »

I would love to catch the fish that could burn up a cork drag!
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Tiddlerbasher
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« Reply #19 on: October 25, 2017, 04:08:35 AM »

Very few sources for thick cf drag sheets. In the US Avcarb produce the stuff in 1.5mm.
Further afield (CH) there are several manufacturers eg:
https://www.alibaba.com/product-detail/good-braking-high-abrasion-resistance-carbontex_60500765742.html

I use to use a good reliable provider in Taiwan - they went bust last year - still looking for a new provider.

I did contact Avcarb but they would only ship vast quantities of their product and at highly inflated shipping costs plus customs tax - I'm not that rich Sad

I have used a UK made Kevlar drag material with good results. Several of my reels are still using it. It is like a machinable stiff sheet of pressed fibre material - not the familiar woven stuff. I have only used the 1mm thickness - it is available in many thicknesses.
I believe Dawn uses the Avcarb product - perhaps she can source some of the thicker stuff Undecided
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jurelometer
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« Reply #20 on: October 25, 2017, 01:30:15 PM »

Jurelometer, sorry maybe I misunderstood, but then I don't follow fly reels much. The only cork drags I have seen, including both Fin-Nor and Ambassadeur, have been pure cork granulate.

Cork granulate sheets are inexpensive and widely available. IKEA used to sell (still do?) a pack of 3 mm thick, roughly 18" x 12" sheets as placemats for a few bucks. Thicker cork drink coaster discs too. Maybe hobby stores and such places sell cork too.


Ahh, but I think they always use a binder along with the cork for the granular sheets.   Usually polyurethane.  I was expecting that there needs to be a binder that is reasonably heat resistant, and also not too abrasive where it might come into contact with the disk. But maybe I am thinking too much. 

One other quick unrelated point on the properties of cork drags.   The cork can permanently compress is stored with the the drag tightened.  It is important to store cork drag reels wit the drag backed all the way off.

Does anybody have the original manuals/paperwork for an old cork lever drag reel?   I am curious as to what was originally recommended for maintenance.  this topic has come up more than once.
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Robert Janssen
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« Reply #21 on: October 26, 2017, 04:41:19 AM »

Quote
Ahh, but I think they always use a binder along with the cork for the granular sheets.   Usually polyurethane.  I was expecting that there needs to be a binder that is reasonably heat resistant, and also not too abrasive where it might come into contact with the disk. But maybe I am thinking too much.  

Idunno, maybe. I spoke with a cork company guy many years ago; he said they didn't use any special binders; they just press it... the granules bind by way of some inherent ingredient. Cork sap resin or something. Pure, safe and natural.

Edit: A quick google shows this to be true. They can use heat and pressure to do it natural-wise, OR with a number of other binders or resins, depending on application.

.
« Last Edit: October 26, 2017, 04:43:58 AM by Robert Janssen » Logged
funhog
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« Reply #22 on: October 28, 2017, 09:15:47 AM »

Totally blown away and grateful for all the really solid comments on this topic! Ive been "work" traveling non stop for the last month and put this project on hold. I just opened-up this topic for the first  time since Keta posted his offer and now my mind is flooded with all the plus's and minus's of whats going to be a fun progect for a fun reel I've had a long memorable history with.
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