Tempered or toughened glass is a type of glass which shatters in small pieces which makes it less harmful and safe after getting broken. Read this content to know more about what tempered glass is or how to tell if glass is tempered or not.
Before installing new glass windows or any glass shield, it is essential to consider whether you are buying genuine tempered glass or not. Tempered glass, commonly called safety glass, is used in car windows or office doors. When tempered glass breaks, it doesn’t shatter into big chunks of glass.
If you have already installed one, you don’t need to break your glass and see if it is shattered into bits. To keep your glass sheets intact, we have proposed a few guidelines to check the authenticity of tempered glass.
- Tempered glass has smooth edges
Look for the edges of the glass and try to feel its smoothness. Tempered glass has a smooth finish when touched. This is because tempered glass is treated with intense heat, giving it a smooth finish compared to annealed glass which has rough edges
- Viewable lines or dots through polarized glass
Tiny imperfections in a glass don’t mean the glass is fake. See if any spots or lines are stretching throughout the surface of the glass. This is the main indicator that the glass has been toughened. Basically, these spots and lines are due to the machine rollers during the tempering process.
- Tempered Glass Stamp
Every genuine manufacturing company uses its stamp, symbol, or logo to ensure CPSP approves the tempered glass. Look for any mark or logo near the edges of the glass sheet. The safety standard reading is CPSC 16 CFR 1201 CAT II. If you find one, consider it as tempered glass.
- Score a Line
If nothing else works, score a line on the surface of the glass with a window-cutting tool. The glass is tempered if the cutting line appears bumpy and cracky. But we will suggest you avoid doing that on your own and take the glass to a specialist. Otherwise, you will end up damaging a high-end piece for nothing.
