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"Painting and Humidity" Topic


7 Posts

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341 hits since 7 May 2018
©1994-2018 Bill Armintrout
Comments or corrections?

Personal logo Stosstruppen Supporting Member of TMP07 May 2018 12:54 p.m. PST

I am coming from an area of usually low humidity, under 30% typically. I have moved to the Midwest Kansas City area in particular. At what levels of humidity should I avoid primering? dullcoating? Any advice is welcome.

JimDuncanUK07 May 2018 1:13 p.m. PST

I would use a brush-on primer and final finishing.

This would avoid any humidity problems and your finishes will be consistent throughout the seasons.

Personal logo Flashman14 Supporting Member of TMP07 May 2018 2:12 p.m. PST

Anything over 55% humidity is pushing it. link

Cyrus the Great07 May 2018 3:34 p.m. PST

You need to check the dew point as well.

Personal logo Sgt Slag Supporting Member of TMP08 May 2018 10:58 a.m. PST

Pffffttt! Artist's Gesso for priming: comes in gray, white, and black (don't use the clear…). I use either Pledge Floor Polish (clear acrylic -- paint carrier, minus the pigment), or The Dip (Minwax Polyshades Urethane Stain, satin finish, not gloss), to seal my paint work, followed by a dull-coat, if necessary. Cheers!

Walking Sailor08 May 2018 6:35 p.m. PST

I haven't had primer problems. Spray varnish @ high humidities is the problem.
See if you can paint inside (no temperature worries) at a window fan set to exhaust, i.e. blowing out. Spread a lot of newspaper. Wrap a filter around the fan before you stick it in the window. link Do it when no-one else is at home.
On second thought, go with Jim Duncan or Sgt. Slag.

Personal logo Stosstruppen Supporting Member of TMP09 May 2018 5:44 a.m. PST

Thanks guys! I was worried mostly with finish coat since I really like the testors dullcote.

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