Coal slag on aluminum

  • AtLarge
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Coal slag on aluminum

12 Jan 2011 10:51
#421692
I have various aluminum engine parts I would like to clean up. Maybe even paint. I have access to a blasting cabinet with TCC Black Blast (coal slag) in it. I can't find any information on whether or not this is good or bad on aluminum. I didn't really want to replace the media. Anyone know for sure? TIA.
1973 Honda CL70-K3
1975 Kawasaki 350 F9-C
1983 Kawasaki KZ750-K1
1994 BMW K1100RS
2008 Suzuki GSX1300-BKK8 #1120

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  • kz1k
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Re: Coal slag on aluminum

12 Jan 2011 11:25
#421696
baking soda works well imo.
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WHY FART AND WASTE IT, WHEN YOU CAN BURP AND TASTE IT?

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Re: Coal slag on aluminum

12 Jan 2011 14:20
#421738
That coal slag is great for etching concrete, but I suspect it'll tear the hell outs aluminum. I would suggest a test piece of aluminum first, that way if it is too aggressive you won't damage a good bike part :)
FRANKEN Z!
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Re: Coal slag on aluminum

12 Jan 2011 14:42
#421742
Use the coal slag on the parts that you will paint, but not the other stuff. It definitely imparts a texture to the surface that would be very difficult to polish off. The texture does give plenty of tooth for paint adhesion however.
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  • AtLarge
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Re: Coal slag on aluminum

12 Jan 2011 16:52
#421770
Rats. Glad I asked. Thanks Guys.
1973 Honda CL70-K3
1975 Kawasaki 350 F9-C
1983 Kawasaki KZ750-K1
1994 BMW K1100RS
2008 Suzuki GSX1300-BKK8 #1120

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