When shopping for sandpaper, you'll notice that each sheet is given a grit rating. This number indicates the size of the abrasive particles on the paper, with lower numbers corresponding to larger particles.
The type of grit you need will depend on the material you're sanding and the desired finish. For example, if you're sanding a rough surface, you'll need to start with a coarse grit in order to remove the bulk of the material. Once the surface is smooth, you can switch to a finer grit to remove any remaining imperfections.
It's also important to note that there are different types of sandpapers in terms of their shapes and texture.
Different types of sandpapers:
Wet / Dry Sandpaper
This type of sandpaper can be used either wet or dry, but it works best when used wet. Wet/dry sandpaper is ideal for use on surfaces that need to be very smooth, such as auto body paint.
These foam pads are covered with sandpaper on all sides. Sanding sponges are great for getting into tight spaces and contoured surfaces.
Sandpaper rolls are a convenient way to store and use sandpaper. They're perfect for use in large projects where you'll need a lot of sandpaper.
Sandpaper sheets are the most common type of sandpaper. They're easy to use and can be cut to fit any surface.
Sandpaper For Sanding Machines
This type of sandpaper is made specifically for use in sanding machines. It's available in a variety of grits and are shaped to match the machine they are to be used with - for example floor sanding sheets if you hire a floor sander.
Sandpaper Grits & Their Uses
There are a few different types of sandpaper grits, each suited for different tasks:
Coarse Grits (40-60)
These are the largest particles and are best suited for removing paint, varnish or stains, shaping wood, and sanding rough surfaces. It can also be used for rough sanding between coats of paint or varnish.
Medium Grits (80-120)
Medium grit sandpaper is perfect for general purpose sanding. It can be used on bare wood to smooth out imperfections, or on painted surfaces to prepare them for repainting, for example if you're using a floor sander to give your wooden flooring a new lease of life.
Fine Grits (150-220)
Fine sandpaper is typically used for finishing work. It can be used to remove any remaining paint or varnish from a surface, or to smooth out any small imperfections.
Very Fine Grits (220-440)
Very fine sandpaper is perfect for delicate surfaces. It can be used to remove any remaining paint or varnish from a surface without damaging the wood.
Extra Fine Grits (440+)
Extra fine sandpaper is the most delicate type of sandpaper. It should only be used on very smooth surfaces, as it can easily damage delicate finishes.
No matter what type of sandpaper you choose, be sure to read the instructions carefully before use. This will help you to understand the proper way to use the sandpaper and get the best results.