Mark J Posted June 15, 2019 Report Share Posted June 15, 2019 HopefullyI can get some quick help with this one. I had a small piece chip out on a projeect I'm turning. I was able to find the fragment in the chips, but in re-attaching it with CA I muffed the alignment. I'd like to make it better, but I can live with it (a lot will be sanded off). So I don't want to make it worse. So questions: Can I reverse fully cured CA with acetone? Can I then use CA to re-attach? Will actone have negative effects on the wood or subsequent finishes? How would it be best to apply the acetone? Brush? Immerse? Quote Link to comment Share on other sites More sharing options...
Tpt life Posted June 15, 2019 Report Share Posted June 15, 2019 I can only answer one part. Acetone will flash off so quickly, I have never seen it interfere with following finishes. Quote Link to comment Share on other sites More sharing options...
Wimayo Posted June 15, 2019 Report Share Posted June 15, 2019 I don't know the answer for sure. However, I would experiment on another piece of similar wood and see what happens. I know that doesn't help much if you are in a hurry to know. Quote Link to comment Share on other sites More sharing options...
Mark J Posted June 16, 2019 Author Report Share Posted June 16, 2019 The answer is ... it doesn't work. The acetone didn't discolor the maple, but the little piece won't budge. I tried generous surface application with an artist's paintbrush and imersing the tip in a shallow pool of acetone for 5 minutes. The wood soaked it up generously, but the glue would not give up. I'll just have to live with it. Quote Link to comment Share on other sites More sharing options...
Gary Beasley Posted June 16, 2019 Report Share Posted June 16, 2019 CA will release with heat but it will likely discolor the wood getting it hot enough to melt it. I have used heat to unstick the brass tubes in a pen blank when it sticks in the wrong place. 1 Quote Link to comment Share on other sites More sharing options...
Tpt life Posted June 16, 2019 Report Share Posted June 16, 2019 Heat...? I know it’s reversible. That’s what makes it my go to repairing musical instruments. The repair shop can easily take my work apart. EDIT: Through some evil forum magic, this comment posted someplace wildly different yesterday afternoon. Keep digging, I know reversal is possible. Quote Link to comment Share on other sites More sharing options...
Mark J Posted June 16, 2019 Author Report Share Posted June 16, 2019 It's a very tiny fragment off a thin protrusion. I have a heat gun, but given the small size of the wood at the tip I think Gary has a point about burning. Most of the repair will be lost in final sanding and shaping. My gut is telling me to let it go. Quote Link to comment Share on other sites More sharing options...
Tpt life Posted June 16, 2019 Report Share Posted June 16, 2019 To keep heat from burning, increase humidity. Quote Link to comment Share on other sites More sharing options...
wtnhighlander Posted June 16, 2019 Report Share Posted June 16, 2019 Looks like sanding has a good chance of making that piece disappear. Agreed, let it go. Quote Link to comment Share on other sites More sharing options...
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