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Old 13th October 2006, 12:35 AM   #11
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Good point about the clamps, although I use a few screws...
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Old 13th October 2006, 12:36 AM   #12
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You can also coat the edges with bondo diluted in a polar organic solvent.
Please, using phrases like that makes you sound very pretentious.
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Old 13th October 2006, 03:49 AM   #13
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Quote:
Originally posted by Curmudgeon
Good point about the clamps, although I use a few screws...
My screws are generally loose .
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Old 8th October 2007, 10:49 PM   #14
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Instead of starting a new thread I thought i'd ask here. Is there anything dangerous about not finishing the edges at all? I have a sub and hi-fi rack in here completely un-sealed, can this pollute the air at all?
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Old 8th October 2007, 11:02 PM   #15
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No.
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Old 9th October 2007, 02:06 AM   #16
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For sealing the raw edges, I use the water based Varathane. I like to put a coat or two over the whole cabinet, as MDF tends to absorb water and is not dimensionally stable if it does.

For edges that show, I still use the iron-on veneer.
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Old 9th October 2007, 12:55 PM   #17
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Originally posted by pinkmouse
No.
MDF will continue to emit formaldehyde -- as well as terpenes and other volatile organics -- there are low emission MDF's on the market -- but you won't see them at Home Depot or Lowes, however as they are used mostly for architectural panels in new LEED compliant construction.

As buildings become more energy efficient, building owners are being forced to contend with the recirculation of hazardous compounds. People wonder why the smells hang around after lunch (could it be that curry the guy next to you had is being recycled through the HVAC
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Old 9th October 2007, 06:27 PM   #18
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I won't argue with that, but I will say that you are probably a thousand times more likely to get run over by a bus than to become ill through the outgassing of MDF.
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Old 9th October 2007, 10:46 PM   #19
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Quote:
Originally posted by Cloth Ears

That's what I use for edge joints. So I never need to worry about any extra sealing measures. You gotta have pretty good clamps, though, as it's fairly agressive in it's expansion. I use the Selleys version of the same thing.
Which of the Selleys products do you use?
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Old 10th October 2007, 12:21 AM   #20
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Here is an excellent LONG thread covering the sealing and preparation of MDF for painting. A lot of quality work and contributions:
Priming MDF boxes
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