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Discussion in 'Luthier's Corner' started by Marn99, Sep 13, 2017.
Wow. Never knew the build of the LPJ was so...crude.
I know right? I had the same thought!
The build of most guitars from that era were crude.
It sure did work though! Just look at the telecaster, what with its bolt on neck and 2 to 4 piece bodies, easily one of my favorite guitars.
I saw an SG Jr. where the tenon was roughly chiseled flat. They didn't bother to sand it flat before finishing.
The guards on explorers are cellulose nitrate. all Gibson guards that were multi ply were made from cellulose nitrate, and so were the truss rod covers.
The side dots on all gibsons (including the white side dots on Jr's and explorers etc.) are also cellulose nitrate.
Les paul binding is actually 2 ply, laminated with an invisible seam, but can be delaminated if you work at it. it is royalite which is a type of abs.
Les paul neck binding was cellulose nitrate.
back plates were all royalite abs as well.
Good day Tom!
I have a question. What was the actual material type of the Gibson single ply PG material, tortoise shell like that of was on the LP juniors?
That is incorrect. 50's Gibson pickguards were cellulose acetate butyrate (CAB). Body bindings were Royalite, an "alloy" of ABS and PVC.
There was a lengthy diatribe on the other forum some years back - preeb never posted his results, sadly...
Ouch, Joe Ganzler..........that brings back memories.
I think the confusion may stem from the fact that Gibson flattop "tortoise" pickguards were indeed nitrocellulose.
Source for this info? No offense but I feel like mr. Bartlett might be right on this one, considering the multiply fender pickguards were all cellulose nitrate.
I can assure you, you are incorrect on this one. the multi-ply guards made by Gibson through the 60's and maybe even into the 70's were cellulose nitrate. if you've ever worked with it, you'll note an immediate and pungent camphor smell that only cellulose nitrate has. Also, you'll note its very flammable. the inlays were also made from cellulose nitrate.
The body binding on the les paul was ABS. the only part of a Gibson that was CAB to my knowledge (and I'm quite sure of this) were the strap buttons on the plastic buttoned 335's (and similar guitars) and the pickup rings on humbucker guitars, and the p-90 covers of the earlier guitars (pre '57).
Like i mentioned, the truss rod covers are also made from cellulose nitrate.
CAB is an injection molding plastic, rarely found in sheets (unless they are smaller sample sized sheets that are themselves injection molded).
I have spent a great deal of time and expense looking into this, and can tell you with certainty that this is true.
they too were cellulose nitrate. same as the side dots on a les paul neck.
Yep Tom is correct, he did spend a lot of time & $$$ on this, that is for sure.
Although “ejection” should be “injection”.
Its been a while since I updated, but the CITES certified stump Brazilian arrived recently, here it is!