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Glass Heat Strengthening

Heat Tempering (Standard ASTM C-1048-04)

Heat Tempering toughens soda lime through the controlled heating and cooling of the glass to maintain a temperature differential between the core and outer surfaces. The stressed induced compress the outer surfaces, forming a substrate substantially tougher than standard soda lime. When broken, tempered glass “dices” into many small pieces. This is typically referred to as “Safety Tempering” for it’s reduced likelihood of cutting a person in the event of a fracture.

Horizontal Heat Tempering Furnace

Minimum Thickness
3 mm [0.118"]
Maximum Thickness
19 mm [0.75"]
Minimum Size
76.2 mm x 76.2 mm [3" x 3"]
Maximum Size
838.2 mm x 736.6 mm [29" x 33"]
Maximum Size (Diagonal)
1056.8 mm x 736.6 mm [42" x 29"]*
Treatment
Temper Kind Full Temper (FT) or Heat Strengthened (HS)

* Contact us for sizes beyond these dimensions.

Glass Heat Strengthening

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