What Causes Brush Marks On Walls?
Paint can dry too fast and make brush marks.
Here are some tips to help you get a smooth finish:
Use The Right Brush For The Paint
For example, use an angled sash brush for cutting in with your paint.
Use a 4-inch microfiber mini roller to eliminate your cut-in brush marks.
If your paint has been in the can too long, it may have thickened and become difficult to apply evenly.
Open a new can and mix it with the old one before using it.
Use good brush technique.
To avoid brush marks when brushing on paint, always start at the top of a wall and pull the brush down in long smooth strokes (rather than up and down).
Use A Mini Roller After Cutting In
Roll over the cut-ins before applying the first coat so you fill any imperfections and smooth the surface, reducing brush marks when you apply the first coat.
Add a paint extender to slow down drying times if necessary.
Some paints tend to dry very quickly, which can cause them to form brush marks as they set.
Adding an extender will extend drying time and reduce this problem and help void roller marks.
Related article How To Paint Straight Lines And Stripes On Walls
How To Use Paint Extender To Avoid Roller Marks
Floetrol paint extender keeps paint from brushing on too thick and allows it to flow smoothly off the brush.
When adding Floetrol to latex paint, stir in 2 – 4 ounces per gallon of paint, depending on the viscosity of the paint.
If the paint is very thick or in extreme temperatures, more may be added up to 8 ounces per gallon.
Floetrol is also an excellent additive for oil-based paints, adding body and improving flow.
Add approximately 8 oz. (1/2 pint) per gallon of paint.
If the paint is thick, or in extreme temperatures, more Floetrol may be gradually added, up to 16 oz.
Floetrol also increases the bonding power and flexibility of cement products such as plaster of Paris and wallboard joint compounds by up to 100 percent.
You can use Floetrol when you are painting furniture also.
Related article 8 Quick Tips To Paint Furniture And Avoid Brush Strokes
Will Roller Marks Go Away When The Paint Dries?
You will have to avoid roller marks because they will not go away when the paint dries.
You will have to repaint your walls again but using this article as a guide will help you avoid brush and roller marks on your next coat.
I would always suggest sanding your wall with 220 grit sandpaper to get rid of the previous roller and brush marks if you want the smoothest results possible.