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Heat and Fish Glue: A follow up
http://www-.luthiersforum.com/forum/viewtopic.php?f=10101&t=44123
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Author:  WilbPorter [ Tue Sep 09, 2014 1:25 pm ]
Post subject:  Heat and Fish Glue: A follow up

Some time I ago, I had glued a fretboard extension with fish glue and then realized I had to remove it. I had no idea what to do so I posted my dilemma on the forum. Got some thoughful responses about the use of heat and water. Almost universal agreement that water was a no go.
So I decided to do a little experiment. To see if fish glue would release with heat and how much was needed. So I glued two pieces of maple together with fish glue and clamped, then let it cure for the last couple of weeks. Today , I decided to try and separate the pieces. Here's the results with pics.

Author:  WilbPorter [ Tue Sep 09, 2014 1:47 pm ]
Post subject:  Re: Heat and Fish Glue: A follow up

the setup:

Author:  WilbPorter [ Tue Sep 09, 2014 1:50 pm ]
Post subject:  Re: Heat and Fish Glue: A follow up

aluminum foil, iron, and high heat

Author:  WilbPorter [ Tue Sep 09, 2014 1:53 pm ]
Post subject:  Re: Heat and Fish Glue: A follow up

As you can see in the two following pics, the pieces separately cleanly, but with considerable scorching of the maple thru the foil. The heat was applied for 5 consecutive minutes and the iron was set on maximum. But the pieces easily separated with a untility knife blade. ( box cutter for some I guess.)

Author:  WilbPorter [ Tue Sep 09, 2014 1:54 pm ]
Post subject:  Re: Heat and Fish Glue: A follow up

two pics

Author:  RusRob [ Tue Sep 09, 2014 4:00 pm ]
Post subject:  Re: Heat and Fish Glue: A follow up

Well there you go!

A picture is worth 1,000 words (as they say)

I don't use Finsh Glue but if I ever do I know how to remove it. [clap]

Cheers,
Bob

Author:  bluescreek [ Tue Sep 09, 2014 6:18 pm ]
Post subject:  Re: Heat and Fish Glue: A follow up

I use fish glue a great deal
actually you will find that fish glue will release fairly cleanly at about 150F. I use heat blankets with controls , set o full for about 3 min then dial in the temp setting at 200F. I do use a little water with the heat.
Your scorch was just too much heat but you did prove that it will release .

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