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  #11  
Old 10-17-2004, 04:09 AM
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Quote:
Originally Posted by Majestic_Aquariums
Anyone ever try a thin piece of aluminum; or even stainless? This can be bent to shape quite easily, and is easy to clean, won't flake or damage by saltwater-shouldn't cost that much if you source it out at a sheetmetal shop in your area. Just a thought-I've tried this before and it worked good.
plain aluminum will work as well as stainless. but they will corode in a salt enviorment if you don't coat it.

Steve
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  #12  
Old 10-17-2004, 04:14 AM
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Quote:
Originally Posted by AndyL
I doubt your 98.9% number though looking at your reflectors. More than 1.1% of the light is going to restrike the bulb - resulting in losses...


Andy
the reflectance value is for the silver spectral aluminum its self not for the design of the reflector. but what you can't see because of the bracket for the MH is a small ^ (bend in the reflector) that prevents direct reflection back into the bulb.

anyways the point I am trying to make is that spectral aluminum has a slightly higher reflectance value than a mirror. high gloss white paint will give you a much better value than flat white paint but it is still going to far lower than any polished metal. the reason your study shows tinfoil as lower is it is wrinkled and it disperses the light to much. if it was perfectly smooth it would be higher than paint.

Hwy, I just noticed yor from the fort, are you working in the tar sands at all? My Dad is heading back up to run another shutdown up there, so much for retirment

Steve
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  #13  
Old 10-17-2004, 04:16 AM
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how much elbow grease does it take to make a normal piece of aluminum shine like a mirror? will my arm die without some fancy machine? I did the chrome on my car with super fine steel wool and my arm just about fell off when I was only done half of it.. got good results tho,
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  #14  
Old 10-17-2004, 04:17 AM
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Originally Posted by Invigor
how much elbow grease does it take to make a normal piece of aluminum shine like a mirror? will my arm die without some fancy machine? I did the chrome on my car with super fine steel wool and my arm just about fell off when I was only done half of it.. got good results tho,
it will be harder than doing your chrome and then you will have to do it every month to keep it looking nice. you could probably find spectral aluminum in a sheet mettal supply place for under 10.00/sq ft.

Steve
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  #15  
Old 10-17-2004, 04:22 AM
Majestic_Aquariums Majestic_Aquariums is offline
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HOLY COW MAN! YOU SHOULD WORK FOR NASA!!!
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  #16  
Old 10-17-2004, 04:24 AM
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  #17  
Old 10-17-2004, 04:37 AM
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Steve: For the moment, looking forward to getting the heck outta here ASAP. Which shutdown is he working on? There are a few scheduled over the next few months...

Andy
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  #18  
Old 10-17-2004, 05:56 AM
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Originally Posted by AndyL
Steve: For the moment, looking forward to getting the heck outta here ASAP. Which shutdown is he working on? There are a few scheduled over the next few months...

Andy
My mom was saying today she is heading up this week I think and will be there till almost christmas.

Steve
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  #19  
Old 10-18-2004, 01:20 AM
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...
I'm going to cut open a pop can for aMH reflector.
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