The color consistency of Low-e glass products of the authors' company with opposite processing order was discussed . On the basis of understanding the film change mechanism while tempered the color of Low-e glass with first coated and then tempered process was kept the same as that of Low-e glass with first tempered and then coated process by adjusting technical parameters .

Thermal stability of low-E glass has a great effect on the quality of tempered products.Owning to high temperature or long heating time,defects in low-E glass such as bending,wave-forming,stripping,color differences and pitting may be caused by tempering.Thermal experiments on temperable mono-silver coated low-E glasses were performed under different temperatures and heating times by using a muffle furnace.Variations of appearance,color,color differences,sheet resistance,E value,transmittance and haze with the heating temperature and heating time were observed and tested in order to reveal their relationship.Thermal stability of temperable low-E glass was studied which can offer references for film design and quality risk assessment.