Can be made with ping pong balls
http://www.youtube.com/watch?v=oyK5cW_RvSY
It is flamable.
http://www.youtube.com/watch?v=xZ0TYZRT ... re=related
So I tried it.
![Image](http://i186.photobucket.com/albums/x313/ckrpipes/pmf/nc1.jpg)
three balls to a half of baby food jar
![Image](http://i186.photobucket.com/albums/x313/ckrpipes/pmf/nc2.jpg)
I doubled it later
![Image](http://i186.photobucket.com/albums/x313/ckrpipes/pmf/nc3.jpg)
An pre-cut pieces like this the penetration is excellent but I did have to dip, evaporate, dip again. On the third dip almost no air bubbles rose from the wood.
![Image](http://i186.photobucket.com/albums/x313/ckrpipes/pmf/nc4.jpg)
This piece has also been dipped three times. Visually you probably can't see much difference but if you had done dipped and undipped on the lathe you would notice a significant difference. When turning it almost has a lubricated feel and the cuts are much cleaner.
I used to think dip it and leave it in for a week or two and that is possibly why I just didn't feel the wood juice was cutting it. With this (and probably the wood juice also) I get better results with dip/evaporate and repeat. I feel that the evaporation of the acetone leaves the wood impregnated with ping pong ball (PPB, big tech term there) and the repeats allow more laquer to enter the wood and each dip deposits more PPB into the wood.
Not as good as acrylic impregnated wood under vacuum but for cost and performance I consider this to be the best I have yet found.
Oh yeah, not that it is important but after the acetone evaporates the wood didn't blow up.