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removing ca glue stains/excess ca glue

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  • Member since
    October 2019
removing ca glue stains/excess ca glue
Posted by phil172 on Wednesday, April 29, 2020 7:48 PM

This is on plastic that isn't clear.  It was from attaching a PE part to plastic and it just ran away from the part in a couple of places.  Problem is, it's in a spot that's going to be near impossible to sand.  I'll try to scrape it off with a razor, but I'm looking for other suggestions.  I'm afraid of trying acetone for damaging more plastic than what the CA is on....




Thanks, Phil


  • Member since
    September 2014
Posted by rooster513 on Wednesday, April 29, 2020 8:30 PM


    There is super glue debonder  our there that should do the trick. Never used it myself but seen it done in video. I Definitely want to pick up a bottle some time.


  • Member since
    August 2014
  • From: Willamette Valley, Oregon
Posted by goldhammer on Wednesday, April 29, 2020 8:51 PM

Debonder is probably going to cause the PE to let go.  Might be the best way to go though, clean up the over run and reglue with a dab of gel CA.

  • Member since
    July 2018
  • From: The Deep Woods
Posted by Tickmagnet on Thursday, April 30, 2020 8:50 AM

There was mention in a FSM mag about using an eraser to remove glue. I tried it with a pencil eraser and it worked to remove Tamiya cement. Not sure if it will work on the glue you are using though.



  • Member since
    November 2009
  • From: Twin Cities of Minnesota
Posted by Don Stauffer on Thursday, April 30, 2020 9:06 AM

CA debonder is available and does work.  Some people say it is just acetone- this may be but I can't confirm that.  I use very little, so even though it is a small bottle I don't spend a lot of money on it because I do not use it regularly.

It does mess up finishes, so best use it if necessary before you get to painting.  One thing I have noticed- it weakens styrene.  Do not let it set on plastic too long.  I find the debonder softens the bond in about a minute, but be careful how you pull the pieces apart.  Try to cut them apart.  Otherwise you may pull a chunk out of one of the pieces, or bend or misshape one of the parts.

Debonder has rescued projects for me several times, so I make sure I keep it in stock.


Don Stauffer in Minnesota

  • Member since
    October 2019
Posted by phil172 on Thursday, April 30, 2020 9:48 AM

Thanks everybody.  I put some superglue on a piece of flat sprue to experiment on before I go back to my model.

@Don - there is no paint on the model.  I'm thinking I'll wet a cotton swab with it, dab it on the glue and then try to remove it.  Hopefully I won't get any on plastic that is untouched as of yet.



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