|
Window glass has a front and a back side. The back side was in contact with molten tin during the manufacturing process. Enamels placed on the back side will have a yellow shift in color, blues will turn green, red will turn brownish orange.
|
|
Although this can be used to create a second palette of colors, it is best to know which side of the glass you are working on. When the glass is viewed under a Shortwave U.V. Light, the 'tin' side appears to have a white haze on it, the front side is clear.
|
|
 In this example, two strips of clear are placed on the UV light, one with the tin side up and one with the tine side down.
$60.00 Order # UVLIG
|
 When viewed in a dark room, the strip with the tin side down, shows a slight white cloudiness while the strip with the tine side up is still clear. This effect is subtle, so requires a little practice to get good at reading the glass.
|
