Absolutely, and it is the preferred base glass for IGUs. Its benefits are as follows:

1. Higher safety: If one side of the insulated glass breaks, the tempered layer provides reliable safety protection.
2. Enhanced structural strength: It improves the overall wind load resistance and anti-deformation performance of the insulated glass.
3. Improved durability: The high mechanical strength of tempered glass reduces breakage risks caused by uneven stress during transportation, installation and service.
4. Better airtightness for gas-filled IGUs: Tempered glass has minimal deformation, which helps maintain the tightness of the insulated cavity and prolong the retention rate of inert gases such as argon.

On-line Low-E glass: Its coating film is hard, allowing storage, cutting and tempering just like ordinary glass with flexible processing workflows. However, it offers average energy efficiency (especially solar heat gain coefficient) and limited color options. Off-line Low-E glass: It delivers superior energy-saving performance and diverse aesthetic colors, yet its coating film is soft. It must be tempered after cutting and edge grinding. In addition, the tempered off-line Low-E glass needs to be assembled into insulated glass units promptly after tempering to prevent coating oxidation.

Processing sequence for off-line Low-E glass: Raw glass cutting → edge grinding → cleaning → coating → tempering → IGU assembly. Southtech tempering furnaces can efficiently temper Low-E glass with an emissivity (e) of no more than 0.01.