Prelco
1-800-463-1325

Heat Strengthened Glass

Prel-Gard

Verre renforcé à la chaleur

Prel-Gard Heat Strengthened Glass:

  • Its strength is approximately two times that of the original annealed product.
  • Offers increased resistance to wind and snow loads as well as high thermal stresses.
  • When broken the glass generally exhibits few cracks and tends to break into large pieces that initially may remain in the glazed opening.
  • Note: broken glass should be removed and replaced as soon as possible after breakage.

Characteristics

  • The process of heat-treating used in the manufacture of heat-strengthened glass involves heating the glass in a furnace at high temperature (621 ° C / 1150 ° F) and air-cooled.
  • This sudden cooling causes a compression envelope around the glass surface and edges and a balanced tension stress within the glass itself. This equilibrium of stresses increases the strength of the glass.
  • The surface compression of heat strengthened glass reaches 3500-7500 psi (25-50 MPa).
  • Heat strengthened glass must be cut to size and shaped prior to the heat treatment. 
  • The glass maintains its color, its chemical properties and its light transmittance after heat treating.
  • Heat-strengthened glass cannot be considered as a safety glass.

GLASS

  • Clear, ultraclear, tinted
  • Low-e
  • Reflective

STANDARDs

  • ANSI Z97.1 – Safety glazing materials used in buildings
  • ASTM C1036 – Flat Glass
  • ASTM – C1048 – Heat-treated flat glass
  • CPSC 16 CFR- 1201 – Safety Standart for Architectural Glazing Materials

Applications

  • Insulated Glass Units
  • Spandrel Glass

Production Capacity

Thickness

Minimum Dimensions

Maximum Dimensions*

Weight

Size Tolerances

mm

in

mm

in

mm

in

kg/m2

lb/ft2

mm

in

3

1/8

102 x 229

4 x 9

1499 x 2286 59 x 90

7.86

1.61

±1.6

±1/16

4

5/32

102 x 229

4 x 9

1778 x 2794 70 x 110

9.91

2.03

±1.6

±1/16

5

3/16

102 x 229

4 x 9

2286 x 3810 90 x 150

11.96

2.45

±1.6

±1/16

6

1/4

102 x 229

4 x 9

2794 x 5182 110 x 204

14.60

2.99

±1.6

±1/16

8

5/16

102 x 229

4 x 9

2794 x 5182 110 x 204

20.02

4.10

±2.0

±5/64

10 3/8 102 x 229 4 x 9 2794 x 5182 110 x 204 23.97 4.91 ±2.4 ±3/32
12 1/2 102 x 229 4 x 9 2794 x 5182 110 x 204 31.54 6.46 ±3.2 ±1/8

  *Certain conditions apply, contact-us for more information.

 

 

Projects

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Sota ford okvleHeat Strengthened Glass

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