14
AGC Stopray SMART
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Processing Guide
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Version 4.1
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May 2020
7.5
Unloading
If the glass is unloaded manually, the personnel must wear clean gloves.
Larger and heavier sheets should be handled with a suction-pad lifting beam. The suction pads must
be covered with a protective material. The toughened sheets are then stored on racks.
Care must be taken when handling them to ensure that the coating on the first sheet does not rest
against the back of the rack. All subsequent sheets should be turned the other way.
Given that toughened glass sheets are never perfectly flat, micro suction pads
should be placed
around the edge of each sheet of glass in order to prevent contact between the glass and the coatings.
For large volumes, paper with a neutral pH can be placed in the center to avoid all contact with the
glass/coating during handling and transport.
7.6
Heat Soak test
The risk of spontaneous breakage due to nickel-sulphide inclusions is inherent to thermally toughened
glass. The presence of such inclusions can in no way be considered as a fault in the glass. In order to
eliminate the risk of spontaneous breakage, an additional heat soak test can be carried out in accordance
with standard EN 14179-1 (or equivalent standards for countries outside the EU).
AGC highly recommends using electrical equipment. Gas-fired furnaces must not be used for heat soak
tests due to the risk that the coating could react with the smoke.
Interlayer's should only be placed on the perimeter of the glass.
7.7
Quality control
The declared properties of toughenable coatings correspond to the performances after the heat
treatment. The coating will have achieved the performances indicated once its temperature reaches
500°C
Annealed products (Stopray SMART 30/20 and 51/33) present the same optical and energy
performance as the heat treated glass. Heat-strengthened products offer the same optical and energy
performance as the toughened glass.
After the toughening process, the Stopray SMART products should be inspected as follows:
The coating is inspected in accordance with EN 1096-1*
Toughened glass must comply with EN 12150-1*
Heat-strengthened glass must comply with EN 1863-1*.
The eventual Heat Soak Test (HST) must be carried out in accordance with EN 14179-1*
* Or equivalent local standards for countries out of the EU.
For further information, please contact
AGC Technical Advisory Service for further information
