Michael Drsdner's latest column describes a new process of blasting
paint off of wood with a soda blaster-- basically sandblasting, but
using baking soda instead of sand. It sounds like it'd be a lot better
than the chemical methods I've been using. However, it requires a
compressor, a blaster, and the baking soda itself, not to mention the
cleanup and containment issues.
I'd love to know how well this works. Anyone have any experience with it?
Not too well. But cleanup is fairly easy (you don't !), you can use
it on soft aluminium without denting, and it doesn't damage plastic.
It has been used for aircraft for some years, and it should offer some
benefits for timber, if you really need to strip it so aggressively.
If you have a compressor, then try a "pressure pot" blaster. They're
not too expensive, or you can build your own from an old gas cylinder
and some welding.
I don't know how well this would work on wood, but I do know if you drink a
lot of coffee and your teeth are stained, your dentist may well use a baking
soda blaster on your teeth--mine does from time to time.
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