RESTORATION PROCESS of a CORNING FEB-2-15 RED as received.
I have been wanting to do another step by step cleaning of what i call pearlescent removal.
Glass like this is from dig outs and ash pits and dumps usually buried in soil .
What i saw in this lens it was a good candidate for glass restoration it has the milky appearance with spots of iron burn from oxidation , I cant call this glass cancer as I believe glass cancer is somewhat for a comparison,
lamination errors flaws in coins .
Glass cancer i believe is the same in appearance and the damage can be felt by dragging the fingernail into the flakes and gouges while glass cancer can still have the milky appearance glass cancer is prevalent in buried glass in dump locations with lime, ash disposed batteries and iron refuse .
I have not seen any one do a step by step restoration of glass cancer or if it can be reversed .
My KOPP UNION SWITCH and SIGNAL flat roundels had milky appearance not the worst case so it cleaned up rather well and a great difference something i first hesitant in doing because you dont see many early KOPP lenses marked US&SCO.
So this lens is a good example of cleaning this "permanent" coating.
The lens has no chips or unsightly deep scratches just hard coatings of staining . this is something no cleaning abrasive should be used not that it would work effectively as i experimented with bottles long ago. this is how i do lens restoration. Lens in received condition no cleaning was done .
RESTORATION PROCESS of a CORNING FEB-2-15 RED as received.
I have been wanting to do another step by step cleaning of what i call pearlescent removal.
Glass like this is from dig outs and ash pits and dumps usually buried in soil .
What i saw in this lens it was a good candidate for glass restoration it has the milky appearance with spots of iron burn from oxidation , I cant call this glass cancer as I believe glass cancer is somewhat for a comparison,
lamination errors flaws in coins .
Glass cancer i believe is the same in appearance and the damage can be felt by dragging the fingernail into the flakes and gouges while glass cancer can still have the milky appearance glass cancer is prevalent in buried glass in dump locations with lime, ash disposed batteries and iron refuse .
I have not seen any one do a step by step restoration of glass cancer or if it can be reversed .
My KOPP UNION SWITCH and SIGNAL flat roundels had milky appearance not the worst case so it cleaned up rather well and a great difference something i first hesitant in doing because you dont see many early KOPP lenses marked US&SCO.
So this lens is a good example of cleaning this "permanent" coating.
The lens has no chips or unsightly deep scratches just hard coatings of staining . this is something no cleaning abrasive should be used not that it would work effectively as i experimented with bottles long ago. this is how i do lens restoration. Lens in received condition no cleaning was done .