Things To Consider While Choosing A Sandpaper

Sandpapers are generally made of different components with different functions. Sandpaper, which is good for wood shaping, is not a good option for creating a smooth finish on metal cars. All the different sandpaper has different characteristics. Some wear out very quickly, while some last longer than expected.

Whether the vehicle is full of surface damages or has minor dents and scratches, the right sandpaper will repair them and will produce the best quality outcome. But to get the right sandpaper is a tough job, so we are here to provide you with certain things that you must consider before buying the sandpaper.

Material Of The Sandpaper

The most popular material for sandpaper is Aluminium oxide. When using the aluminium oxide sandpaper, you will see that it fragments down in a way that maintains a sharp edge, allowing the sanding strap to be used longer.

Moreover, in aluminium oxide sandpaper, various coating forms are available. Most commonly closed coating is done, due to the 95% of grains covered. This facilitates the smooth and effective work on the metal vehicles. This type of sandpaper is durable, gives a sharp cutting, and delivers the appropriate outcome.

Garnet And Flint Sandpaper

The material of the garnet and flint sandpaper is natural. Garnet sandpaper is reddish in colour with the characteristics of soft grit. Though garnet sandpapers wear out very quickly, it gives a smooth effect on the surface.

Flint sandpapers are very economical but not durable. It is of a beige colour. The flint sandpapers are used for rough works, and often provide an immediate effect on the surface.

Silicon Carbide Sandpaper

This type of sandpaper is known for its waterproof nature and can be used on wet surfaces easily.

Steel Wool

Steel wool sandpaper consists of flexible materials such as steel and other metals and is used to polish rough surfaces and remove grime and sludges from surfaces. Therefore, this type of sandpaper is used to remove coatings of dirt and smudges.

Type Of Minerals Used In Sandpaper

Generally, sandpaper is made of plenty of minerals. These materials increase the effectiveness of sandpaper. Each mineral used provides a different effect and attributes to the sandpaper. So, if you are buying sandpaper, make sure you get the one with the right mineral. Some of the minerals used in Sandpaper are:  

1.    Alumina Zirconia

These minerals are popularly known as ceramic. And it is the most common type of mineral used in sandpaper. To decrease the expense of buying this sandpaper, the mineral is mixed with other abrasive materials.

Moreover, the grit of these sandpapers is tough and sharp, which is suitable to be applied on metal or non-metal surfaces. So, if you want to buy sandpaper at a lower cost, you can opt for this one.

2.    Aluminium Oxide

This mineral sandpaper is highly studied in nature and has an extended lifespan as compared to others. If you are a low-grade sander or want to apply it to the metal, this abrasive sandpaper is the best to go for.

3.    Silicon Carbide

The sandpaper made of silicon carbide is highly used for dry or wet surface sanding. There is not much variety of grades in this type of sandpaper. However, there is one particular limitation with this kind of sandpaper is that it wears out very quickly.

4.    Alumina And Cubic Boron Nitride

Alumina minerals are used in sandpaper, as they create a robust effect on its working. These minerals are often used in sandpapers for the places like foundries.

Other minerals like cubic boron nitride are relatively harder and restricted minerals used in the sandpaper. However, it gives a special polishing effect on the vehicle.

Grit Application

When choosing the right sandpaper, it is important for you to consider the type of surface you are using it on. Different types of surfaces require different types of sandpaper. For instance, sanding an auto body is much different from sanding wood. Therefore, it is important to know different types of grit systems and on what surface they can be used.

The Grit System 

All types of sandpaper have one thing in common, which is the grit system. Normally, sandpaper is said to be good when there is a lot of grit. The grit number indicates the fineness and coarseness of the sandpaper material and its efficiency to work. With this, we can say that, the more the grit is, the finer the material, and thus the less rough the sandpaper is.

Less rough sandpaper leaves the smooth surface and sharpens the damage to the vehicles. First, you must start with the least fierce sandpaper.

Low Grit Sandpaper

As mentioned, low grit sandpaper is highly appropriate to smooth rough surfaces. When the vehicle has multiple layers of paint coating on uneven surfaces, low grit sandpapers are used. 60 to 80 grit volumes are a decent choice when the vehicle has a wider scar.

Moreover, the 120 grit range is also a good option when it comes to rust down the moderately deeper spot or scratches on the vehicles. 220 grits can be used to remove the rough edges from the surface. To directly get the vehicle ready for priming, 320 grits are more than sufficient.

Medium And High Grit Sandpaper

The 600 grit range can be used when there is high imperfection even after building the primer on the vehicle. Then, 800 grit sandpaper can be used to give the final finish to the vehicle before the primer-sealer.

Hence, these were some of the key points that you need to keep in mind while choosing sandpaper for yourself.

Final Words

While finding the right sandpaper one must look for an expert in the field. You can find the right person at a spare parts store or you can look online for reviews on different types of sandpapers. All the above-listed things are to be analyzed before you buy sandpaper for yourself because buying the wrong sandpaper might incur some serious scratches on the surface on which you are using it.