Rusty Parallels

I like the self adhesive idea.
Thanks


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I built this nice little box to hold some of my parallels....weeks later I was going to use a set of them and noticed that the bottom surface of all of them (the surface resting in the felt) was rusty.

I hope this isn't relevant, but is that an oak box? Oak and iron is the recipe for black-iron-oxide ink
production, it's possible that unsealed oak has the capability of doing the rust damage all by itself.
The active agent, gallic acid, can be washed away, but normal wood seasoning does NOT remove it.

That's why iron fasteners in oak get black stains: the iron dissolves and diffuses into the wood.
 
That's interesting. The box was made from oak but it was stained and varnished. The block in the experiment was unfinished pine. More testing


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Final test: l let the white glue dry for 4 days then placed the parallel on the felt. One day later there was rust! I tried 3M 25 spray adhesive. After a few minutes of drying I stuck the felt and wood together. After 4 days of the parallel sitting on the felt there was no sign of any rust. Spray adhesive it is!


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A fabric store called Joanns sells felt squares with a glued backing. I have used it to line wooden boxes. It's nice to use, just cut to size with scissors, pull the backing off, and press in place. However, I have never checked it for rusting. Need to do that.
 
That's a good idea. That's where I bought the second batch of felt. I did see the adhesive squares too.


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There goes another test!


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Today, I was talking to my wife about this felt business. She does professional sewing. She told me that the best felt is made of wool, but even synthetics can be good. She then showed me her box that contained her silverware. Yep, it's felt lined. Then she went further and told me about a cloth called silvertex or also known as silver cloth. This is a black cotton cloth coated with a substance to help prevent tarnishing. You use it to wrap your silverware with. I ask her would it work for wrapping micrometers and other things like that. She was not sure, but did not see why not. I ask her where can you get it, She thought a fabric store like Joanns. Looks like another test coming.
 
Today, I was talking to my wife about this felt business. She does professional sewing. She told me that the best felt is made of wool, but even synthetics can be good.
Yeah, wool is great for blotting up small amounts of oil... and (for buffing ) accept no substitute:
the polyester felts melt with friction, it's just a NASTY material for a buffing wheel.
There might be one or two offerings in wool, but most JoAnn felt is likely to be (?polyester or acrylic).
 
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