Re: [ATM] Does exposed Pyrex lose polish over time?

[greg emery <glass_grinder@yahoo.ca>]

 Hello All:

If it is a combination of chemicals and dirt losely in
contact with the surface or adsorbed to the surface
then maybe a swabbing with conc. nitric acid ( which I
would repeat 1 or 2x) then copius rinsing with  water
( distilled deionized is best, followed in order of
preference by reverse osmosis, then distilled, then
rain water and lastly tap water).

This should remove any and all films, surface
contaminants, oils, greases and a multitude of
inorganic materials.



ttfn
greg

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