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Paint spray technique?
Paint spray technique?
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Old Today, 02:57 AM   #11
phase is offline phase  United States
diyAudio Member
Join Date: Oct 2004
With a metallic, I have made the last coat almost all thinner to get all the metallic particles to lay down in the same direction or evenly.
Another trick to keep the paint from running or puddling is to spray a light tack coat at first. This can sit for about 5-10 minutes before putting on about three full wet coats. The paint should be just about the same viscosity of milk.
Test first or do some less critical parts before the important parts. The urethanes will flow out a bit after spraying for some time, so absolute gloss isnít required.
I am still sensitized to a certain version of a Sherwinn Williams product, even after thirty years of not using it. Toxic is putting it mildly.
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Old Today, 08:35 AM   #12
Dave Zan is offline Dave Zan  Australia
diyAudio Member
Join Date: Nov 2010
Originally Posted by phase View Post
With a metallic, I have made the last coat almost all thinner to ...lay down in the same direction evenly...
Thanks, this confirms my idea that lower paint viscosity is the key.
Made it hard for myself with the worst possible combination, a small fan and metallic.
Still haven't done the last coat yet, partly because it's too hot, ~40 C, and partly in case there was further advice.
But there seems to be reasonable consistency of recommendations so I will do it soon.

Also just realized additional reasons polyurethane is perfect for speakers, it has the qualities that Nelson Pass identified for mythic audio components, it's both expensive and toxic

Best wishes
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