An orbital sander speeds up the sanding process, but it leaves swirl marks that are visible under a penetrating oil or clear finish.

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.

Can anyone give me some advice on what grit sandpaper to use to just scuff old paint to re-paint? If you’re lucky and have nothing more complex than a thin, clean layer of paint in your way, you may want to forego grits and sanding altogether and just use a liquid paint remover.NOTE: Despite the word “grit” usually being associated with being rough and strong, on the sandpaper or glasspaper scale, increasing grades actually represent finer, gentler forms of the coated paper abrasive.Determining what grit for what job is also dependent on the job itself.Usually graded at about P40 to P80classed as being coarse, this type of sandpaper is used take off thick layers of paint and is ideal if used with a power sander. Use very fine grade paper to make these last minute touches before applying protective varnish or sealant.WARNING: If you choose to use liquid sandpaper, follow the directions very carefully, as it is highly combustible and should not be used in enclosed spaces.DoItYourself.com®, founded in 1995, is the leading independent

What sandpaper grit should you use before priming? This is a smart choice if your initial inspection of the wall tells you that you’re going to have to get through multiple thick coats of finish, paint, and primer.While it’s true that paint stripper could accomplish that same task, the precision of sanding by hand requires less taping and worrying about messes.Coarse sandpaper would also be useful if you wanted to take the paint off only a doorframe or trim and leave the walls covered.WARNING: Be cautious when using course grit sandpaper because it can seriously damage the underlying surface and create large score marks in the softer materials such as wood.If you end up using the sander, exercise caution, follow the product instructions, and wear protective gear.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. Amazon and the Amazon logo are trademarks of Amazon.com, Inc, or its affiliates.What Grit Sandpaper Should You Use to Prep for Paint?

We welcome your comments and Weird & WackyWe use cookies to personalise content and ads, to provide social media features and to analyse our traffic. Once you have completed smoothing the surface, you can paint it to further reduce any evidence that a repair was made.Wood surfaces such as baseboards can get pretty roughed up over time.If you decide to repaint the wood surface, you can smooth it out using a medium grade sandpaper such as 120-grit.Once you have gone over the surface, switch to a finer grade such as 180-grit and go over the surface again.The finer the sandpaper, the smoother the surface will be, so you can switch to an even higher micro grade if needed.If you plan to put latex paint over oil paint, then you will need to rough the surface of the oil paint first.This is because latex will need a rougher surface to make it stick. Wet or Dry Grits For wet or dry sanding. If you plan to paint your metal surface after sanding, consider one final bluff with wet sandpaper before painting especially if it is a vehicle surface. If your surface is an intricate design, you are better advised to use medium course grade to protect the carved design beneath the paint.This has a higher grit grading of between P180 and P500 and will not be as effective at removing the majority of a painted surface. Aluminum oxide paper is more durable and is the best all-purpose choice, while silicon carbide paper -- also known as wet/dry paper -- wears the best and is most suitable for sanding metal and finishes.

It doesn't last long and is best for one-time wood sanding projects -- because it is soft, it produces the smoothest finish on wood.

Because 80 grit is pretty coarse, stop using it when the paint is almost all the way off. I'm painting the metal dash in the car. We also share information about your use of our site with our social media, advertising and analytics partners who may combine it with other information that you’ve provided to them or that they’ve collected from your use of their services. Larger defects you find in most drywall include gouges, nail holes, cracks, and scratches. If your surface is an intricate design, you are better advised to use medium course grade to protect the carved design beneath the paint. Sanding by hand works well for woodworking and finishing, especially for giving surfaces a lighter touch. The 320 to 400 grit sandpaper are the ones that are used for light sanding in between coats of finish. Medium grade sandpaper will take the next level of paint and reduce it further by sanding the final layers away.This is also the best sandpaper for already chipping paint.In addition to knowing the best sandpapers to complete your paint removal project, it's also important to know what won't get the job done.This grade of sandpaper is not effective at all for removing paint. Very fine grade sandpaper is completely unsuitable for the removing of paint, but it does offer a highly fine finish to a job once new paint has been applied and dries. They are also being used to sand metal and other hard surfaces. It should appear dull rather than shiny. Besides having an abiding interest in popular science, Deziel has been active in the building and home design trades since 1975. But the reason I suggest the Scotchbrite is because the sandpaper will sand through on spots, and then you'll have to primer the bare metal before painting… You can use 400 if you wet-sand carefully. Minor issues with drywall or plaster may include small scratches or imperfections that can be easily covered by a coat of paint.You will need to check the surface for any flaws and if you spot them, use medium-grit sandpaper such as 120 to scuff and smooth them out.Such issues should be minor if you are sanding the surface. to earn advertising fees by advertising and linking to Amazon.com.

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