Replies

1. 
   EricPaulson | Jan 26, 2006 02:12pm | #1

   no solvent will disolve it. acid perhaps. soak it for a day and scrape.

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1. 
   jdarylh1 | Jan 26, 2006 03:56pm | #2

   Acid..you mean muratic acid?

2. 
   DonCanDo | Jan 26, 2006 10:05pm | #6

   no solvent will disolve it. acid perhaps. soak it for a day and scrape.

   Water is a solvent (although a very mild one) and it does work, but it takes a verrry lonnng time.

   -Don

1. 
   MarkH | Jan 26, 2006 10:12pm | #7

   I got this from the msds for durabond 45.  Looks like acid would eat it off because of the limestone and plaster of paris. Vinyl bonder may need to be be attacked with something else, but try an acid and see what happens.

    

    

   MATERIAL WT% TLV (mg/m3) PEL( mg/m3) CAS NUMBER

   Plaster of Paris (CaSO4•½H2O) 60-100 10 15(T)/5(R) 26499-65-0

   Limestone 10-30 10 15(T)/5(R) 1317-65-3

   Mica 10-30 3(R) 20 mppcf 12001-26-2

   Attapulgite 1-5 (NE) (NE) 12174-11-7

   Vinyl Alcohol Polymer 1-5 (NE) (NE) 9002-89-5

2. 
   EricPaulson | Jan 27, 2006 01:12am | #9

   I should have said chemical solvent.

   I know, you're gonna tell me that water has a chemical composition!!

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1. 
   jdarylh1 | Jan 27, 2006 02:03pm | #10

   Thanks all. I guess if you decide to put hot mud in a banjo, you better be paying attention to how it's setting up.

2. 
   ruffmike | Jan 26, 2006 04:35pm | #3

   Water. Soak, scape. Water, soak, soak, scrape. Repeat. Repeat. Taps from the outside will sometimes break large chunks out, but may dent steel.

                               Mike

       Trust in God, but row away from the rocks.

3. 
   rasconc | Jan 26, 2006 06:06pm | #4

   Just a thought: white vinegar or CLR, Bam, lime away.  Might be worth a try and should not hurt anything.

4. 
   Mooney | Jan 26, 2006 07:15pm | #5

   You screwed up there . <G>

   As Eric mentions Ive never known any solvent .

   Any sanding method will work. Even a dremel with a wire brush, stone wheels , and such. Hand sanding and machine will work to on areas that are accessible . Down to screw drivers and picks , scrapers that are sharpened. Its not like concrete .  Morter  its close if its cured.

   Acid might work but Ive never tried it .

   Depending on the banjo brand you should be able to handle the job as described above. I made a 90 degree angle hook one time from a concrete nail to clean the feed mechanism from a banjo but another brand comes apart for cleaning which is easiar.

   Tim

    

5. 
   DanH | Jan 26, 2006 10:13pm | #8

   I would go with a mild acid solution, such as CLR or one of its kin. It'll have to soak a bit, and then brushing/scraping will be required.

   Next time, don't play music while you're mudding. :)

   If ignorance is bliss why aren't more people

   happy?