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Re: Gluing Cocobollo

Posted: Mon Jan 23, 2012 4:37 pm
by Bob Matthews
Since that failure on an early guitar I have made several from cocobolo and have not had an issue. I always make sure the gluing surfaces are freshly prepared and glue up within 15 mins. If I can't glue up for some reason then I prepare the surfaces again prior to glue up.

For the back join, I shoot the two surfaces with a hand plane and then immediately join using ca. 10 mins later I scrape the back on a flat board where the re-enforcing strip will go and immediately glue the strip onto the back with hhg in my go bar deck. The following day I scrape where the braces will fit and straight away glue on the braces, again with hhg in the go bar deck.

For the linings and neck and tail block, again I scrape prior to glue up, but this time I use fish glue (gives me more open time). I also glue the back to the rims using fish glue after scraping.

HTH

Bob

Re: Gluing Cocobollo

Posted: Tue Jan 24, 2012 11:16 am
by Dave long
Thanks bob, that guitar looks very sweet. Maybe I'll try it your way, I don't have fish glue but I could check it out. I guess I'll also do some testing as best as I can. The Cocobolo I have seems to be twice as heavy as a set sides of IRW. This will be for #6, Also I put a scap pc. next to a light bulb and the oil that came out shocked me. I can't wait to hear this stuff, it taps like glass...very cool stuff. I can see how people get sick from this stuff, it's different than any wood I've worked with. Thanks again...

Re: Gluing Cocobollo

Posted: Wed Feb 01, 2012 10:54 pm
by hikermike
What's "hlg"?

Re: Gluing Cocobollo

Posted: Wed Feb 01, 2012 11:19 pm
by Dave Bagwill
Was it supposed to be 'hhg'? - hot hide glue?

Re: Gluing Cocobollo

Posted: Thu Feb 02, 2012 5:20 am
by Bob Matthews
hikermike wrote:What's "hlg"?
Hhg - yeah, hot hide glue.

Bob