If you bought a presurfaced board you might have to start with 120 grit to remove incidental scratches that were on the board when you got it.
What grit sandpaper for painting cabinets.
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Lower grit numbers represent coarser abrasives that scrape off materials much quicker.
If your surface is an intricate design you are better advised to use medium course grade to protect the carved design beneath the paint.
The grit you start with depends on the surface quality of your workpiece.
180 to 220 grit sandpaper.
If you are sanding cabinet doors or drawer fronts then starting at an 80 grit and working to a 120 or 150 grit is a great way to reduce time spent with an orbital sander.
Most common autobody sand paper grits 80 grit 150 grit 240 grit 320 grit 400 grit 2000 grit tony b.
And for a slightly smoother surface use the macro grit grading near to 80 grits.
When painting wood with latex or oil based paint scuffing with sandpaper finer than 220 grit is likely to gum up the paper and will have little effect on the final appearance.
Painted cabinets should get a thorough sanding with 120 grit paper but no matter the finish do a final pass with 220 grit.
On a board just milled to thickness with a well tuned planer you can usually start sanding with 150 grit.
The following table shows the differences please be aware that there are further options but these are the typical sandpapers used for diy and painting purposes.
The grit of sandpapers is a rating of the size of abrasive materials on the sandpaper.
The higher the grit number is equivalent to a finer abrasive which creates smoother surface finishes.
In rare cases you may also need to use extra coarse sandpaper 16 to 24 grit where you may want to quicken the task.
100 to 150 grit sandpaper.
Medium coarse sandpaper medium coarse sandpaper is graded between p80 and p180 on the grit level and offers a good level of paint removal which is less likely to destroy the underlying surface.
Use a sanding sponge to dig into any tough areas that need special attention or corners that are hard to get with your sander.
In most cases a light scuff with 150 grit paper removes all surface defects without producing noticeable scratching.
569 283 views 4 22 best auto body sandpaper grits.
Medium grit sandpaper makes a good starting point for most projects from sanding unfinished wood to removing old varnish.
If you desire to get a rougher surface as an end result you may be using near to 30 grits.