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RicodJour RicodJour is offline
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Default Why do painted surfaces stick together?

On Oct 23, 11:46*pm, The Daring Dufas
wrote:
On 10/23/2010 7:29 AM, RicodJour wrote:
On Oct 23, 2:01 am, The Daring wrote:

Did you consider putting some wax lubricant on the sliding surfaces?


That would make re-painting at a later date problematic. *Avoid
silicone and avoid wax, or plan on disassembly and degreasing every
time you paint.



I'm referring to a little saw wax not liquid wax. I don't think a touch
of wax from a wax stick will destroy a paint job or make it hard to
repaint at a later time.


No, not hard, but if someone doesn't know there's wax on a surface
they won't do anything to prevent the problem that will occur. Wax
interferes with the adhesion of any water-based coating. Silicone
interferes with water or oil based coatings. Wax is used in faux
finishing circles - in many circles - as a release agent. The wax
certainly will work to reduce stiction for sliding surfaces, and it's
not necessarily a big deal if the person who put the wax on is the
person who will be doing the subsequent painting. But very few
painters, pro or amateur, routinely dewax/degrease a surface,
particularly in this day of self-priming, sticks to gloss paint,
paints - and sanding doesn't remove all traces of wax. There will be
fish-eyes.

The OP said that he had casement windows, so there's really not a lot
of sliding going on. The problem is due to paint buildup. Over time,
paint build up will interfere with hinge and latch operations. The
best time to deal with potential paint buildup problems is before a
window is repainted. The operating parts should be checked for
clearance with a piece of paper. If the paper doesn't slide out
easily when the parts are closed, the window is too tight to repaint
without some sanding.

R