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the best way to tell if it is nitro or poly ,,,,,,,

 
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muccaz
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Joined: 12 Aug 2007
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Location: denmark

PostPosted: Sun Dec 16, 2007 11:17 am    Post subject: the best way to tell if it is nitro or poly ,,,,,,, Reply with quote

hi
were is the best place to test if is is nitro or poly .... i know i have to use acetone to test ,,,,, but i am not sure i test the right place .... on my 1987 strat vintage usa in black it works ,,,, but not on my 1980 burny flg 90 ????????????? any one now how to test the best way

otto
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muccaz
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PostPosted: Tue Dec 18, 2007 7:18 am    Post subject: Reply with quote

is ther no one who can tell me that ................. ??????


otto
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Micky Mojo
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PostPosted: Tue Dec 18, 2007 7:24 am    Post subject: Reply with quote

If it's kept in it's case you can sometimes smell the nitro finish.
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leadguitar_323
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PostPosted: Tue Dec 18, 2007 5:40 pm    Post subject: Reply with quote

Hi all, I can smell mine as soon as i open the case....
Mick
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rgrafend
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PostPosted: Tue Dec 18, 2007 6:47 pm    Post subject: Reply with quote

hi! of course you can smell it if your nose knows what to smell for.

however, if you have a cold or never had it before: put a bit of nitro-thinner onto a cotton-bud and apply it INSIDE (!!!) the pup-cavity. If the painting starts to dissolve within some 2-30 mins: voila! It really takes up to 30 mins on an old ST. Please keep in mind that 30 years are 30 years.

If it doesn't, poly.

Cheers. Rup
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muccaz
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PostPosted: Wed Dec 19, 2007 10:29 am    Post subject: Reply with quote

rgrafend wrote:
hi! of course you can smell it if your nose knows what to smell for.

however, if you have a cold or never had it before: put a bit of nitro-thinner onto a cotton-bud and apply it INSIDE (!!!) the pup-cavity. If the painting starts to dissolve within some 2-30 mins: voila! It really takes up to 30 mins on an old ST. Please keep in mind that 30 years are 30 years.

If it doesn't, poly.

Cheers. Rup


hi
thanks ....... i did use acetone on my 57 us vintage 1987 strat ,,,,, and right a way the paint dissolved ,,,,,,,,, but not on my 1980 flg 90 .?????????????? ..... so i was thinking i was doing some thing wrong ,,,,,, i did try in the control cavity ,,,,,, but not thing happend ........
but i did not wait 30 min ...... only 2 min ........
all the best otto
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muccaz
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Joined: 12 Aug 2007
Posts: 121
Location: denmark

PostPosted: Wed Dec 19, 2007 10:29 am    Post subject: Reply with quote

rgrafend wrote:
hi! of course you can smell it if your nose knows what to smell for.

however, if you have a cold or never had it before: put a bit of nitro-thinner onto a cotton-bud and apply it INSIDE (!!!) the pup-cavity. If the painting starts to dissolve within some 2-30 mins: voila! It really takes up to 30 mins on an old ST. Please keep in mind that 30 years are 30 years.

If it doesn't, poly.

Cheers. Rup


hi
thanks ....... i did use acetone on my 57 us vintage 1987 strat ,,,,, and right a way the paint dissolved ,,,,,,,,, but not on my 1980 flg 90 .?????????????? ..... so i was thinking i was doing some thing wrong ,,,,,, i did try in the control cavity ,,,,,, but not thing happend ........
but i did not wait 30 min ...... only 2 min ........
all the best otto
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ochay
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Joined: 24 Sep 2002
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PostPosted: Mon Dec 31, 2007 10:37 am    Post subject: Reply with quote

Amyl acetate ( I get from my work ) will immediately desolve Nitrocellulose Lacquer (Nitro) finished Guitars-

If the guitar is Poly finished the Amyl acetate will just act like water and not effect the Poly.

Acetone is the primary (or only) component in nail polish remover and is suposto work also immediately melting the Nitrocellulose Lacquer, although I don't polish my fingernails like dick does- so I don't have any on hand to test.
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MIJvintage
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Joined: 22 Dec 2006
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PostPosted: Mon Dec 31, 2007 10:44 am    Post subject: Reply with quote

the 'test' as it has been refered to, has been discussed here in the TF previously

get yourself some lacquer thinner, namely ACETONE, and test a very small bit of it on a hidden place aka pup route

If it is a non catalized nitro, the finish should immediately react, or turn to sludge/scum, etc.
If it is a catalized nitro, it may or may not react
If it is a poly finish, it won't do squat...........

just DON'T get any on a visible finish area, because if it is nitro, you'll be very unhappy with the results
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