Is this something I should be concerned about?

Construction and repair of Classical Guitar and related instruments
AvronGoss
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Is this something I should be concerned about?

Post by AvronGoss » Thu May 03, 2018 8:21 am

Hi, I have an Antonio Picado 54 which I bought in 2000.

It has started displaying white stuff between the fret board and the soundboard.

Before I haul it off to a luthier has anyone got any idea what it is?

With kind regards
Avron

Agelastos
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Re: Is this something I should be concerned about?

Post by Agelastos » Thu May 03, 2018 8:51 am

Lesson learned from bitter experience (see post further down the list):

Humidify, humidify and humidify

...well, still, don't overdo it.

OldPotter
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Re: Is this something I should be concerned about?

Post by OldPotter » Thu May 03, 2018 9:33 am

A picture would help to identify the problem.

White stuff could be glue or unvarnished spruce or something else. It might be caused by the fingerboard shrinking due to low humidity. If the ends of the frets stick out from the fingerboard, enough to feel the sharp edges, then that would be another indicator. But, the only way to be sure is to measure in the room with a hygrometer. A Caliber IV is often suggested, available online.

There is a risk of cracks forming if the humidity is low, do something soon.
"When I was younger, I could remember almost everything, whether it happened or not." Mark Twain

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Trevor Gore
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Re: Is this something I should be concerned about?

Post by Trevor Gore » Thu May 03, 2018 10:14 am

It might just be polish residue...
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simonm
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Re: Is this something I should be concerned about?

Post by simonm » Thu May 03, 2018 11:40 am

AvronGoss wrote:
Thu May 03, 2018 8:21 am
… white stuff between the fret board and the soundboard.
...
Snow? Frost? Dandruff? :lol:

:desole:

The description is a bit too vague for anyone to do more than hazard a guess. A good photo or two would certainly help.

AvronGoss
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Re: Is this something I should be concerned about?

Post by AvronGoss » Thu May 03, 2018 10:27 pm

Hi all... I thought I did attach a photo! I will try again when I can work out why it did not work. Loved the dandruff comment!

MessyTendon
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Re: Is this something I should be concerned about?

Post by MessyTendon » Thu May 03, 2018 11:47 pm

Most likely lacquer residue...when I re-finished my Picado, I left the varnish on the top of the fingerboard but not the sides...

Probably just lacquer or dead skin cells from the hands...Use some cue tips and water to wash it out.

AvronGoss
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Re: Is this something I should be concerned about?

Post by AvronGoss » Fri May 04, 2018 8:18 am

OK... I think I have finally managed to attach the photo. I think the previous version was too large!
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OldPotter
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Re: Is this something I should be concerned about?

Post by OldPotter » Fri May 04, 2018 9:32 am

The picture is fine but I am not sure what the white stuff is. It looks more like glue squeeze out than shrinkage, but, PVA glues normally dry fairly clear. If it is glue, why has it gone white now? I presume that it won't wipe off with a slightly damp cloth?
It doesn't look like a humidity problem to me. Perhaps some of the experts will chime in.
"When I was younger, I could remember almost everything, whether it happened or not." Mark Twain

Mr.Rain
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Re: Is this something I should be concerned about?

Post by Mr.Rain » Fri May 04, 2018 1:51 pm

At 1st sight I thought it was some of the white polish left over, but i think it is 2 things, the polish and glue.

To me it looks like there was a tiny crack (typical on that area due to the ebony fretboard expanding in a wet weather). Maybe it was spotted in before or during the polishing and filled up with CA. When CA is wiped when not totally dry it can look "flaky"(even more if it gets mixed with the polishing compound.

I had a similar issue with another guitar(also a Picado,I have had 6 ). I would try to clean it, and first figure if there is a crack (using a lamp on the inside and a dark room), and then refill the crack with CA and polish (only it if it were a very thin crack).

IMHO as long as the crack is filled this is nothing but a cosmetic issue, AFAIK all Picados (even a model 45 I have) have an under fretboard patch and a proper under soundhole patch, so this should no affect the sound or the stability.

AvronGoss
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Re: Is this something I should be concerned about?

Post by AvronGoss » Fri May 04, 2018 1:52 pm

Thanks OldPotter.... it may be glue squeeze out that I have noticed before. I had my guitar repaired about 2 years ago when the soundboard had a crack. Your suggestion mat be consistent with the fact that the luthier may have removed the fretboard and glued it down again.

SteveL123
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Re: Is this something I should be concerned about?

Post by SteveL123 » Fri May 04, 2018 2:33 pm

Make a wooden chisel out of a Bamboo chopstick and see if you can lightly scrape it off.

MessyTendon
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Re: Is this something I should be concerned about?

Post by MessyTendon » Sun May 06, 2018 5:10 pm

A tan colored artists pen should make it blend in good. If not undue it with a wipe of alcohol or thinner.

AvronGoss
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Re: Is this something I should be concerned about?

Post by AvronGoss » Fri May 11, 2018 3:35 pm

Some good suggestions.... but now that I know that it is benign I am going to leave it as is.

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