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Sheaffer Snorkel Inner Cap Liner



eckiethump

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This adhesive has a rubbery texture, I wonder what liquid/solvent, if any can be used to release it.

I have a Snorkel demonstrator cap I wish to remove this metal liner from to restore the cap. I have in the past, many times used a careful application of heat to remove the metal inner cap liners from PFM's and Sheafer caps, this one, I'm nervous about the heat application.

TIA

Eric

Ignorance more frequently begets confidence than does knowledge (Charles Darwin)

http://www.wesonline.org.uk/

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sounds like it's some form of rubber cement contact adhesive?

 

Sorry have zero experience ungluing that part. Wow rare clear plastic... don't envy your trepidation in working on that!!

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Managed with no grief, ever so gentle heat, to get the inner cap liner out, now I wish to clean the parts, prior to painting, as it was originally, only where glued. I'll be able experiment on the metal inner cap liner.

I do know which solvents, not to use, on the clear cap part.

Ignorance more frequently begets confidence than does knowledge (Charles Darwin)

http://www.wesonline.org.uk/

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Eric, Snorkel demo caps were painted with black celluloid lacquer on the *outside* to hide the glued areas where the inner liner was attached.

.

That will explain how it has worn away? Any idea on the chemical composition of the black celluloid application ?

Ignorance more frequently begets confidence than does knowledge (Charles Darwin)

http://www.wesonline.org.uk/

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.

That will explain how it has worn away? Any idea on the chemical composition of the black celluloid application ?

 

Eric,

I make a solution of black celluloid shavings and acetone.

Make the solution not too thick, viscosity being approximately like olive oil .

Apply a layer, let it dry for 24 hours and apply again according necessity.

Lightly sand with 600 and finally 1000 grit and polish afterwards

Wishing you succes !

Francis

francis

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True celluloid lacquer might not be easily available in Europe. It can be bought in the USA, though, from companies that specialize in musical instrument restoration -- guitars, in particular.

I would recommend spray application with an airbrush.

 

A home made lacquer made using black celluloid shavings will likely not have enough pigment to provide sufficient opacity. Keep in mind, too, that you are applying it to a cap that isn't itself celluloid. A thinly sprayed coat will put less solvent into the cap's material.

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True celluloid lacquer might not be easily available in Europe. It can be bought in the USA, though, from companies that specialize in musical instrument restoration -- guitars, in particular.

I would recommend spray application with an airbrush.

 

A home made lacquer made using black celluloid shavings will likely not have enough pigment to provide sufficient opacity. Keep in mind, too, that you are applying it to a cap that isn't itself celluloid. A thinly sprayed coat will put less solvent into the cap's material.

 

Thanks for zooming in David, much appreciated !

Although I successfully used my home made liquid celluloid for re-coating barrels , it remains a delicate and time consuming operation. I've also already appleid it on acrylic parts with excellent results.

However the celluloid lacquer you've suggested looks a better, faster alternative.

i've located a seller in the UK who sells black into cellulose lacquer in an aerosol bottle, see link below.

I suppose the lacquer you suggested is also nitro cellulose ?

Thanks & regards,

Francis

https://www.rothkoandfrost.com/wood-finishes-c15/lacquer-and-paint-c34/dartfords-nitrocellulose-guitar-lacquer-p39#attribute%5B3%5D=239

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