Many professionals recommend going from 320 grit, to 400 grit, and finish with 600. The real detail oriented polishers will sometimes go to 800 or even 1500 grit before moving onto the next step.
Moreover, can sandpaper be used on aluminum?
Aluminium is a relatively soft metal, so it shouldn’t take too much effort to level off the surface so you can move on to the next step. A coarse grit sandpaper can be used to remove heavy amount of corrosion, dirt and to level out the surface even further.
In this manner, how do you sand and polish Aluminium?
How do you smooth out rough aluminum?
How to Smooth Aluminum
- Decide how big the area is that you need to smooth. If it is large, a sander may complete the job more efficiently. …
- Use 160-grit sandpaper for deeper scratches and blemishes. …
- Sand the aluminum. …
- Wipe the aluminum with the soft cloth.
How do you smooth rough cast aluminum?
Sand the part by hand with 120-, 180-, 240-, 320-, 420- and then 600-grit wet sandpaper. Place the sandpaper on a foam sanding block or pad. Keep the aluminum part and the sandpaper wet for this entire process to minimize scratching.
What is best for polishing aluminum?
Vinegar. A simple solution of vinegar and water will not only clean aluminum surfaces but also polish the aluminum to restore its original shine. In a spray bottle, mix equal parts of water and white vinegar. Spray directly onto the surface and wipe away with a soft cloth.
What sandpaper works best for aluminum?
The best sandpaper for hard metals such as iron or steel is aluminum oxide, while the best sandpaper for softer metals such as aluminum or brass is silicon carbide.