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Re:Removing mud after the pour - Metal Casting Forum - Metal Casting Zone | Metal Casting DIY | Home Casting

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TOPIC: Removing mud after the pour
#1412
Removing mud after the pour 1 Year, 6 Months ago  
I have a question. does anyone know a good way to remove the mud from the outside of the foam after a pour. I have a fairly complicated mold that has been a challange to scrape. I was thinking:
Coke.
white vinegar.
oven cleaner.

Any thoughts?

My projects:
Obama belt buckle.
Lost foam napkin rings
Fish belt buckle.
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#1423
Re:Removing mud after the pour 1 Year, 6 Months ago  
mud??????? a pic of the problem might be useful. what type of metal are you using?? a corrosive cleaner may harm the surface of your item. have you tried a small wire brush about the size of a toothbrush . they come normally in sets of three containing a strong nylon brush, one that has brass wire and one that has steel wire. i find them very useful .
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#1425
Re:Removing mud after the pour 1 Year, 6 Months ago  
Sorry should have been more specific. I have been using drywall mud around the foam and pouring zinc. The bulk comes off easy but the last bit does not especially in holes. I have been using a wire brush but it is a large one which make getting into small spaces a challange.

In case you were wondering the coke did not do much.
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#1444
Re:Removing mud after the pour 1 Year, 6 Months ago  
you could try high pressure water blasting??????or maybe a petroleum solvent like kerosene rather than a corrosive cleaner.
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#1455
Re:Removing mud after the pour 1 Year, 6 Months ago  
Oh yeah. I wish I still had my pressure washer. Thanks.
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