Cryogenic pistons

Cryo doesn't make "smoother grain" and has zero to do with surface tension. I'm not jabbing at you, just saying whoever told you that was waaaaaaaaaay off in left field.

X2 on the coating.

none taken, just learning. but if you look at micorscopic pictures of treated and non treated metals the grain structure has a "homogenous" look. like theyre smoother and not all scattered like non treated. guess i worded it wrong earler
 
none taken, just learning. but if you look at micorscopic pictures of treated and non treated metals the grain structure has a "homogenous" look. like theyre smoother and not all scattered like non treated. guess i worded it wrong earler

No problem....any chance you can post a link? I'd like to see it.
 
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