Museum Glass Specifier

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Mecianne

Mecianne

SGF, Supreme Grumble Framer
Joined
Jan 7, 2005
Posts
2,229
Loc
Alabama
Ok, first off, I am not trying to pick on TruVue. Just a little FYI about something I discovered when I moved.

Ya know those tassle boxes from TV showing MG and CC glass? Well I had one in my old shop hanging by the front windows. We had huge windows and got lots of sun. We also had fluorescent lighting. Well, when I took this off the wall I noticed that the color of the mat sure was dull. It used to be a deep burnt orange sort of color. Now it's more of pastel peach. I took the thing apart.

First, the mat is paper, so that may have something to do with it. Second, full sun and fluorescents...not good. Weird thing is that the museum side is faded a slight bit more than the CC side. This thing hung in the same spot from December 2004 until April 2007...so 2 years and almost four months.

Whatta ya think?
 
Reinforces what I always say...


Put your art where the sun don't shine!


:D
 
Meci - I wouldn't be surprised that fading occurred whilst hanging in full sunlight for that amount of time - too bad you don't have another piece with regular glass that hung in the same spot to see how faded that one would be.

We do after all tell folks that UV blocking glass is like "sunscreen for your art." Just because you put on sunscreen doesn't mean you can fly to the sun and not expect to get burned. Just ask Icarus - I'm sure he was wearing sunscreen, doncha think? ;)
 
But Meci is wondering (and I find it odd too):

How does one explain that the piece under CC faded less than the one under Museum Glass??

Maybe it was one of those "faulty tolerance but otherwise indistinguishable (but in reality it is the same thing, etc, etc)...." MG that was meant for Ms???:p
 
I'm sorry mec. I'm not sure how but you are confused. We are supposed to use this stuff to protect art and avoid some fictitious lawsuit. Furthermore MG is the best product on the market and every piece should be quoted first with MG only to drop down to that crappy CC by tackling your customers as they head for the door.

I would re-review your sample. You're confused.

Carry on.

Oh oh oh… I forgot to add. Have you called TV first before posing here. They have all the answers and always tell the truth.
 
According to the Tru Vue sunflower display, both CC and Museum filter out 98% of the ultraviolet light. That would indicate that they are pretty comparable in that respect. And if I recall correctly, isn't glare and reflection the result of light bouncing off the surface of the glass? So the optical coating on Museum that allows more light to pass through might account for the greater degree of fading.
 
What we really have to remember is this...


The glass blocks 98% of UV light transmission. NOT 100%.

The fading that you see may have happened in a few weeks or months with regular glass, instead of the amount of time that is was there.

I'm not taking up for TV mind you. I think they are feeding us a crock of crap with this 'Masterpiece' thing.
 
PaulSF said:
According to the Tru Vue sunflower display, both CC and Museum filter out 98% of the ultraviolet light. That would indicate that they are pretty comparable in that respect. And if I recall correctly, isn't glare and reflection the result of light bouncing off the surface of the glass? So the optical coating on Museum that allows more light to pass through might account for the greater degree of fading.
Click to expand...

Paul, I think you make an excellent point about the effects of more or less light reflecting 'away' from the art; and thank you for addressing so well the point of this thread - the difference in potential fading between these two anti-reflective treatments.

Amy
 
To expand on PaulSF's point, regular glass reflect 8% of the light that hit it's surface(+- 1%) and MG reflects back roughly 2% (+- 1%) making a diference of 6% more light passing through to your art with MG. The MG will filter roughly 98% of the light that passes through it, therefore 2% of the UV that is contained in the extra 6% or .12% will make it to your art with MG that does not make it to your art with CC glass. Fairly minimal exposure but by my calculations that means that the art over a period of 2 years will have an extra 87.6% full days sun exposure.
 
I'm thinking I'm posting something that has been said a few times...or not..not sure, I'm tired this morning...Well they do say that even though it is "protected" you should still not put it in the way of direct sunlight no matter what...just my 1 cent, and someone has said it I am sure.

Justin Alvarez
 
Got a new POP in yesterday. This one has an 8 ply white core mat. And a very deep, unfaded-by-the-sun mat. We have little direct light in the new place & NO flourescents (thank goodness), so maybe it'll stay that way.

In case anyone misunderstood my point, I was just reminding people that UV protection doesn't make your artwork damage proof just as sunscreen doesn't cancer-proof your body.
 
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