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primer/1 coat vs 2 coats on exterior repaints

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64K views 25 replies 12 participants last post by  chrisn  
#13 · (Edited)
I think it is worth considering that on a new surface, you need a total mil thickness as specified. In a repaint that is in good condition and is being maintained on a regular cycle, you are not starting with nothing on the surface. As wood sided homes age, too much paint film is a problem as well that can limit breathability of the coating system, become more brittle, etc. If every repaint of a home that is in sound condition receives a full prime coat plus 2 coats or a full two coats over the same existing color, that may not be the best option either.
 
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