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<< Lancair Builders' Mail List >>
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Brent,
Doesn't it mean anything that one of the recommended cleaning agents by
Lancair is acetone? I'm not sure why you are worried about grease. There
is no grease used in the molding that I'm aware of. There is no grease in
the building process that is used while doing layups. And I can't imagine
that you would have a building environment that was riddled with grease.
So....what is the problem with acetone?
I've experimented with both acetone and MC. They both provide good cleaning
of the parts that need to be bonded. The most important thing is not which
cleaner you use, but the process that you use to create the bond. It is
more important to sand and dust the area to be bonded after you use the
cleaning agent. This is the recommended process in the manual. You shape,
you clean, you sand, you bond. I have performed a few layups where I
sanded, then cleaned, then layed up. The bond failed, even with MC.
However, when you sand, clean, then sand again and then blow or brush the
dust off, then layup, the bond sets everytime.
I'm not sure that grease is anything to worry about. However, if I am
wrong...then I'll gladly use MC instead of acetone. If you can provide any
evidence that grease is a danger, please do so.
Curtis Krouse N753K 30% and holding
> I can't believe that builders are still using Acetone to clean before
bonding!
> Acetone will not remove grease, it smears it around the parts you are
going to
> bond.
> I have used nothing but MC to clean. It cleans better than anything else I
have
> tried. Just have plenty of ventilation when using MC or any other chemical
> cleaner.
> Brent S.
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LML website: http://members.olsusa.com/mkaye/maillist.html
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Please remember that purchases from the Builders' Bookstore
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Please send your photos and drawings to marvkaye@olsusa.com.
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