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Old 24th Dec 2019, 6:19 pm   #19
stevehertz
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Join Date: Sep 2011
Location: Rugeley, Staffordshire, UK.
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Default Re: Re-spraying record decks.

Quote:
Originally Posted by G6Tanuki View Post
Also important if spraying with rattle-cans is ambient humidity. As soon as the paint emerges from the spray-nozzle the solvents (and some dissolved propellant) want to evaporate - which involves grabbing heat from the environment, and so the individual paint-droplets cool and act as foci for condensation of any moisture in the surrounding air. If moisture condenses on the paint-droplets, or the cooling effect causes air-moisture to condense and then be carried onto the workpiece along with the paint-droplets - the finished result can include millions of tiny moisture-inclusions which give a matt surface when you wanted a shine.
Ok, so you want the ambient humidity to be...?
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