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Glazing is the term used for what type of glass or plexiglass is used when framing a picture.  You will hear many different opinions about what type of glazing you should use when framing.  Some say plexiglass, some say non-glare, while others say conservation.  I have been a custom framer for 25 years and have used them all.  Here are my thoughts.



You will see a lot of people selling frames online that use plexiglass and give you reasons for it, but the truth is it is cheap and will scratch very easily.  I have also seen it bow and pull apart frames when exposed to heat.  Most of the plexiglass being offered has no UV protection and will ultimately damage your artwork.   



At one time non-glare glass was what framers were pushing and convinced people that it was the best (that was before Museum glass came out).  The glass is etched and has microscopic dimples in it so when the light hits it, it is dispersed instead of being reflected straight back.  This does reduce the reflection, however it distorts your picture.  And the further away from the picture the more distortion you get.  So if you have a triple mat on a certificate it is very difficult to read.  This is why we no longer carry or recommend it to our customers.


Conservation Clear

Conversation glass gives you 99% UV protection so your artwork will not fade over time.  This glass is very clear and has a reflective surface.  



In my opinion Museum glass is the best.  It is the most expensive glass but you get what you pay for.  This glass is not etches like non-glare glass.  It has a coating on it so when the light hits it most of the light is reflected to the sides.  That makes it look almost invisible.  


Museum glass

Clear glass next to Museum Glass


If you are taking the time and money to frame a picture, it has meaning to you.  If you frame it with the right materials it will last a lifetime.