Message:

<p>[QUOTE=&quot;Anntron, post: 7602479, member: 109580&quot;]With regrets, I know from personal experience that any solid material, no matter how soft to the eye or touch, will scratch the surface of a mirror Proof field or device.&nbsp; It will also remove the toning to a lesser extent.&nbsp; Some posters have stated this and they are correct.&nbsp; It is the <b>accrued</b> <b>residue on the polishing material</b> that creates the hairlines.&nbsp; The chemical structure of surface oxides on the coin are crystalline and thus have sharp points.&nbsp; The polishing medium picks up the crystal oxides and in turn rubs them against the surface.&nbsp; I have found a liquid medium with an airblast is the only way to prevent hairlines when cleaning a mirrored coin.[/QUOTE]</p><p><br /></p>

Your name or email address:

Do you already have an account?

• No, create an account now.
• Yes, my password is:
• Forgot your password?

Stay logged in