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Glass Edgework Options

All glass with edgework should be heat treated, either heat strengthened (HS) or fully tempered (FT). Edgework is completed prior to heat treating. For laminated glass, this results in a potential mismatch of up to 1/8" between glass plies.

Type

Description

Glass Thickness

Recommended Application

Graphic

Appearance

Seamed

The simplest type of edgework, the sharp edges from 'as cut' glass are removed.

1/8" to 3/4"

Concealed Edges

Seamed Finish As Cut

Flat Belt Ground and Seamed

The sharp edges and flares from 'as cut' glass are removed.

1/8" to 3/4"

Structurally Glazed

Seamed Finish Belt Ground

Flat Ground with Arris

A flat machined edge with arrised edges and a satin finish. The arris width is 3/32" ±1/32".

1/8" to 3/4"

Exposed Edges or Butt Joint Edges with silicone seal

Ground Finish

Flat Polish with Arris

A flat machined edge with arrised edges and a polished finish. The arris width is 3/32" ±1/32".

1/8" to 3/4"

Exposed Edges

Polished Finish

Mitered*

A flat machined edge 1° to 45° from the cut edge. The thickness of glass remaining at the edge is 1/16" nominal with a tolerance of -1/64", +1/32".

3/16" to 3/4"

Exposed Edges (polished)

Butt Joint Edges with silicone seal (ground)

Polished or Ground Finish

* A customer sketch is required to identify the angle size and orientation. Viracon production drawings must be approved by the customer.

Viracon cannot guarantee the future availability of component parts manufactured or supplied by others that are incorporated into Viracon products.

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