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 Post subject: Glue for cork on delrin?
PostPosted: Tue May 08, 2018 5:50 pm 
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Location: Lawrence, KS
So... what's the best option for glueing cork back on my delrin flute?

Thanks,

Eric


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PostPosted: Tue May 08, 2018 6:05 pm 
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I don't personally know what's best:
https://www.doityourself.com/stry/how-to-glue-delrin

http://www.loctiteproducts.com/p/epxy_p ... Bonder.htm

http://reltekllc.com/adhesivesfordelrin.aspx

https://www.masterbond.com/applications ... -adhesives

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PostPosted: Tue May 08, 2018 7:29 pm 
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Ferree's cork cement works well on Delrin. I rough the surface up with 60 grit sandpaper and wipe with acetone immediately before applying the cement.

https://www.ferreestoolsinc.com/products/h70_quick-dry_cork_cement?variant=1113109912

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PostPosted: Tue May 08, 2018 7:36 pm 
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Thanks Dave...I wonder if there is anything that sounds less scary to ship?

Eric


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PostPosted: Tue May 08, 2018 7:44 pm 
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Dave...any reason not to try rubber cement?


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PostPosted: Tue May 08, 2018 8:38 pm 
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Jayhawk wrote:
Thanks Dave...I wonder if there is anything that sounds less scary to ship?

Eric


They ship it by UPS ground so it should not be any problem. I've never had any luck with other adhesives on cork. If you don't want to have something shipped the only similar stuff I have seen is the rim cement used to stick tubular tires on racing bicycles, and which you should be able to get at a bike shop. I've never tried it myself but you could buy a short length of Delrin rod on Amazon and do a test run before trying it on a flute.

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PostPosted: Wed May 09, 2018 7:29 am 
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It isn't scary to ship, it is just regulated by the DOT. It is incredibly routine for UPS to ship a small hazmat or ORM-D like this. Same as shipping spray paint or hair spray.

Shipping cost would be more of a concern to me.


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PostPosted: Wed May 09, 2018 7:46 am 
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Well now I am concerned about hair spray!

I was hoping there was something I could buy locally, but it looks like I will need to order it.

Thanks all!

Eric


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PostPosted: Wed May 09, 2018 9:50 am 
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I use "Evostik" contact adhesive (there a lots of different brands but) it's always contact/impact adhesive. It's the sort that the glue sniffers (and woodwind repairers) use. It smells of ether and other volatiles. It can be bought in hardware shops and newsagents. I've used it on wood and delrin and does not melt the delrin. Try it on a bit of scrap delrin if you doubt it. Spread it on both surfaces, allow to dry for a few minutes and it sticks on contact.

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PostPosted: Wed May 09, 2018 10:00 am 
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Thanks for the second option. Not hurting the delrin is key for me!


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PostPosted: Wed May 09, 2018 1:36 pm 
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Rock shock,

I would love to use everything Ferree’s sells, but it’s expensive and must be ordered. Go to the Home Depot on 31st and buy the following item:

https://www.homedepot.com/p/DAP-Weldwoo ... /100195615

I used this brand for 15 years on Delrin clarinets and oboes.

BTW, I visit KC for work a lot, in fact driving back to STL today. Where do you folks have sessions?

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PostPosted: Wed May 09, 2018 2:54 pm 
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Charles...that make lsife easier...my local Westlake, 5 minutes from my house, has that in Aisle 7 (per the clerk).

Hopefully this link works... it's up to date for KC:. https://thesession.org/sessions/search? ... ity&page=1

Sunday nights in Lawrence I co-host the session at Henry's Upstairs from 5 until 8 or 9. Henry's Upsatiars is the bar above Henry's coffee shop (Google maps can find that)...just off Mass Street to the east on 8th. Let me know if you are able to drop in!

Eric


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PostPosted: Wed May 09, 2018 4:00 pm 
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Check out any on-line musical instrument repair supplier.

I seemed to remember that with clarinets etc., the standard was melting shellac. But I'm sure there are better alternatives today.

Piper Joe


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PostPosted: Wed May 09, 2018 8:10 pm 
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Contact cement is hard! Cork back on, going to give it 24 hours to cure before trying it out, but it's not perfect and I had to trim a bit of the cork that wasn't fully in the channel. However, there is enough there for a good seal. That instant bond thing requires near perfection.


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PostPosted: Thu May 10, 2018 4:56 am 
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Just for the record - Ferree's sells a small bottle of cork cement (contact cement) that is more than enough for DYI flute repairs which they will send by mail. At least they did for me ....

John Dura


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