Float glass will have a tin
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October 14, 2012 at 1:56 pm #12714
Participant
Float glass will have a tin side, which can be identified with a UV light (it will glow). If it’s not too many pieces, this may be an acceptable way of identifying the float (quicker than firing).
Google “identifying the tin side of glass” and you’ll find many How-Tos.
Dana W.
Jester’s Baubles Fused Glass Designs