tempered glass shield or Acrylic

[Zoom]

tempered glass shield or a Acrylic ??I have a 72" hood with three 250W MH and two 96w PC bulbs.
The hood have a acrylic shield under it to protect the bulbs from splash but is in bad shape so I need to get a new one.
I can get a new Acrylic one or I can order a tempered glass shield.
Now I'm worrying about the tempered glass shield cutting back to much of the light intensity.
What you think tempered glass or Acrylic?

 

[titan04]

Glass should actually cut back less on light intensity... definately over time since when you clean acrylic you will get small scratches that will refract light. Not much, but more and more over time

 

[Bobby417919]

how close is it (glass or acrylic) going to be to the lights. The reason i ask it that acrylic metales at a low tempure than glass

 

[Zoom]

<a href=showthread.php?s=&postid=6908625#post6908625 target=_blank>Originally posted</a> by titan04
Glass should actually cut back less on light intensity... definately over time since when you clean acrylic you will get small scratches that will refract light. Not much, but more and more over time

I read up on this today and the book said the glass will cut back 20% of the light but not the acrylic. you just need to change it more often I don't know now.

 

[Zoom]

<a href=showthread.php?s=&postid=6908659#post6908659 target=_blank>Originally posted</a> by Bobby417919
how close is it (glass or acrylic) going to be to the lights. The reason i ask it that acrylic metales at a low tempure than glass

The Hood is 4" high so i said 2" from the bulb but is a fan on the hood so not much heat.

 

[titan04]

That could be right... I don't see 20% but maybe... Acrylic will for sure be better at first but that amount of heat as a shield will slowly melt the acrylic... not visually dripping mind you but move some molecules...

The live on the glass if taken care of could be close to forever if cleaned reguraly... the more you clean the acrylic the shorter the life as far as blocking light from cleaning scratches... cleaning and heat will "dull" the acrylic much quicker than glass IMO so it could only be a matter of months before the acrylic is also blocking the said 20% where as glass would be constant...

Unless money is an issue between the 2 I personally would go for glass but that is just my opinion... everyone has one I like stuff to last... have to buy enough stuff to maintain in this hobby So just bulb instead of bulb and shield maybe?

 

[Zoom]

Price of the tempered glass $68.
Price of the acrylic $35
Everyone please VOTE.

 

[Zoom]

Come on now help me out here i need to make a decision.

 

[Zoom]

^

 

[marcrothschild]

glass will last much, much longer. If you can, see about ordering some starphire glass cut to size...then have it tempered. But starphire or not, glass will not haze and discolor like acrylic will.

 

[Bobby417919]

with only 2" from the light bulb i would say Glass

 

[RTaylor]

If the MH bulbs are double-ended then you should use UV glass.

 

[Zoom]

<a href=showthread.php?s=&postid=6918903#post6918903 target=_blank>Originally posted</a> by RTaylor
If the MH bulbs are double-ended then you should use UV glass.

No they not DE they are SE's