1/ Toughened safety glass is a Grade A safety glass as per AS1288; up to 500% stronger than annealed glass and therefore is more resistant to thermal breakage and can withstand greater windloads;
2/ On breaking it fragments into many small harmless pieces unlike annealed glass;
3/ Can be used within a temperature range of minus 70 deg C to plus 300 deg C (surface temperature should not exceed 250 deg C if other surface is lower than 0 deg C ambient);
4/ Standard arrissed edge makes handling easier;
5/ Ease of matching tinted toughened and tinted annealed glass;
6/ Plastic wrapped to avoid scratches during delivery or on site;
7/ Recommended for door, side and low lites, frameless entries, balustrades, shower, bath screen panels and furniture;
8/ Flat automotive toughened and marine toughened is available in 3 - 8mm thicknesses. Other thicknesses are available 3 - 25mm
9/ Toughened glass cannot be drilled or edgeworked in any manner. Sandblasting or other surface treatments should be carried out prior to toughening as per AS1288 - 1994. Deep sandblasted patterns greater than 1mm are not permissible;
10/ Toughened glass ordered to templates must be accompanied with a full scale template made to the correct dimensions. These must be made from a rigid material. Orders submitted with complex drawings and sizes to avoid template construction will either be rejected or executed at the customer’s risk;
11/ Minimum edgework finish on toughened glass up to 12mm is a standard arrissed edge. Minimum edgework on greater thicknesses should be a flat ground edge; slight distortion or bowing may occur after toughening but is largely controllable. It will vary with substance, tint, surface treatment, size and shape of the glass. 12/ The roller motion process during the furnacing of glass panels can produce slight corrugated distortion or roller waves. This visual effect is in the form of distortion bands 250 - 300mm apart. It is most noticeable in reflective toughened glass and should be glazed horizontally; not recommended for use in overhead glazing and structural balustrades with no hand rails above ground floor;plastic wrap on toughened glass should be removed no later than one month after exposure to sunlight.
