Defintion Of Tampered Glass

[gimz63251073 0]

So,

Is there a simple DIY test to find out if the glass is really tempered?

So that we can buy the furniture with peace of mind.

there are some when i googled last time round.

but it didn't work when i tested it on my shower screen, not sure its a hoax?

[Warrior88 0]

there are some when i googled last time round.

but it didn't work when i tested it on my shower screen, not sure its a hoax?

You mean the LCD screen test ?

[RimBlock 0]

So,

Is there a simple DIY test to find out if the glass is really tempered?

So that we can buy the furniture with peace of mind.

Take a look at these suggestions here.

Obviously using a blowtorch (test 5) or hitting it with a hammer (test 6) cant really be done .

RB

[leechaorui 2]

Take a look at these suggestions here.

Obviously using a blowtorch (test 5) or hitting it with a hammer (test 6) cant really be done .

RB

Thanks RB. You are very resourceful.

[froggy 0]

Take a look at these suggestions here.

Obviously using a blowtorch (test 5) or hitting it with a hammer (test 6) cant really be done .

RB

[RimBlock 0]

Thanks RB. You are very resourceful.

NP.

Google is my friend . The only difficulty is sometimes knowing what phrase to search for.

RB

[hasibee 0]

My walk-in wardrobe door also shattered like Green Giraffe's. Now I have no idea how to get a replacement. It's been many yrs since we moved in. Anyone has any contacts? Green Giraffe, who did you contact to have yours fixed?

[catfish 0]

Just to share some knowledge from my work experience

1. Car front windscreen is more than just tempered glass, it's laminated, a plastic (PC) is sandwich with 2 pieces of tempered glass (inside/outside), this is to ensure, when you hit a stone up right, the windscreen will not be punctual a hole so easily & the broken glass still holding together by the lamination, this is to reduce injury. Whereas the car side window normally just a tempered glass.

2.It's a misconception that, tempered glass is stronger than ordinary glass, only benefit of tempered glass is, when it shattered, it's less dangerous, without big sharp piece, tempered glass will broken into small pieces

3.For safety, you can always add a transparent safety film onto the any glass (tempered or ordinary), example from 3M, when it broken, at least, the safety film hold the glass together (same concept as car front windscreen..

4.Tempered glass itself is constantly under high stress,what do I mean? to make tempered glass, the glass is heated to high temperature & then rapid cooling.. that is why, when it broken, it will resulted in small pieces.

5. There is no known laymen method to test tempered glass, except when it's broken , of cos, you can always refer to the label, normally it will have clear label.

BTW, I am not relate to 3M

[neubie 2]

Just to share some knowledge from my work experience

1. Car front windscreen is more than just tempered glass, it's laminated, a plastic (PC) is sandwich with 2 pieces of tempered glass (inside/outside), this is to ensure, when you hit a stone up right, the windscreen will not be punctual a hole so easily & the broken glass still holding together by the lamination, this is to reduce injury. Whereas the car side window normally just a tempered glass.

2.It's a misconception that, tempered glass is stronger than ordinary glass, only benefit of tempered glass is, when it shattered, it's less dangerous, without big sharp piece, tempered glass will broken into small pieces

3.For safety, you can always add a transparent safety film onto the any glass (tempered or ordinary), example from 3M, when it broken, at least, the safety film hold the glass together (same concept as car front windscreen..

4.Tempered glass itself is constantly under high stress,what do I mean? to make tempered glass, the glass is heated to high temperature & then rapid cooling.. that is why, when it broken, it will resulted in small pieces.

5. There is no known laymen method to test tempered glass, except when it's broken , of cos, you can always refer to the label, normally it will have clear label.

BTW, I am not relate to 3M

thanks for the info. but i read that tempered glass is not optically perfect, ie, when u look thru the glass at some certain angle, the image will be distorted. is this true?

[catfish 0]

thanks for the info. but i read that tempered glass is not optically perfect, ie, when u look thru the glass at some certain angle, the image will be distorted. is this true?

In general, tempered glass for window/table etc will look(feel) as ordinary glass, not that I aware it will have distorted image when look at angle. HOWEVER, when you look via polariser glasses (eg Sun glasses that has polariser coating), it will have uneven shadow and/or rainbow effect... . For some special application, eg TV front glass and/or LCD screen, tempered glass is not suitable.

You will understand what I meant, when looking at car windscreen (from outside) with polariser sun glasses...

Maybe using polariser sun glasses can be potentially a laymen method to test tempered glass...

[bepgof 20]

In general, tempered glass for window/table etc will look(feel) as ordinary glass, not that I aware it will have distorted image when look at angle. HOWEVER, when you look via polariser glasses (eg Sun glasses that has polariser coating), it will have uneven shadow and/or rainbow effect... . For some special application, eg TV front glass and/or LCD screen, tempered glass is not suitable.

You will understand what I meant, when looking at car windscreen (from outside) with polariser sun glasses...

Maybe using polariser sun glasses can be potentially a laymen method to test tempered glass...

Ordinary glass sent for "heat treatment" becomes tempered glass. All glass has refraction index which is defined as speed of light travels in vacuum/speed of light tavel in glass. Light speed in glass is slower than in travel in vacuum.

Go to swimming pool & see the object at bottom of the pool - seen & actual are in different locations. Because pool is very much "thicker" than the thickness of tempered glass, so the effect is quite obvious. No way to know if it is normal or tempered glass, unless break it!

Edited September 20, 2010 by bepgof

[tansn 0]

You need to have certification for tempered glass. Genuine tempered glass must go through detailed heat testings. Those that cannot make it will be destroyed. Those can make it will be marketed and sold. These approved tempered glass will usually have a seal on it to certify its genuinity.

Why I have to emphasize that is because a common complaint with CASE is that consumer kitchen tempered glass shattered because of heat. Where it should be heat resistant. This is because some IDs and contractors use "uncertified" tempered glass for their consumers. Sadly to say, they are still doing it now.

Hence when you make your buying decisions on tempered glass, ask for the glass company's background and make sure you do your due diligence on the them and their finished product. Or best get a lifetime warranty on it to protect your interests.

Cheers

Edited September 22, 2010 by tansn