Removing scratches from aluminium
Removing scratches without damaging the shape of the workpiece calls for a smart choice of material. Which product you choose depends on the finish you need.
Which product suits your workpiece
For a fine finish, choose the SAG/2SF. If the workpiece will be painted afterwards, the VTMA/RC2 is an economical solution.
SAG/2SF
Ideal for removing scratches without deforming the workpiece.
- Open unitized web structure
- 3D abrasive material
- Even, fine scratch pattern
VTMA/RC2
Economical choice for parts that will be painted afterwards.
- Less conformable
- Less fine finish
How to grind away scratches on aluminium in 3 steps
Choose your disc
Choose the SAG/2SF for a fine finish. If the workpiece will be painted afterwards, the VTMA/RC2 is sufficient.
Work with even pressure
First make the workpiece dust-free, work with even pressure and don’t skip any grit steps. This prevents new scratches.
Check the scratch pattern
Check that all scratches are gone and the scratch pattern is the same everywhere. Touch up where needed.
Frequently asked questions about removing scratches on aluminium
How do you remove scratches from an aluminium surface?
Use an abrasive that removes scratches without affecting the shape of the workpiece. The SAG unitized disc has an open 3D structure and effectively removes scratches without deformation.
Which SAG disc do you choose for a fine finish on aluminium?
For a fine finish, the SAG in the 2SF version is our choice. It removes scratches and leaves an even, fine scratch pattern.
What do you use if the aluminium will be painted afterwards?
If the finish is less important because the workpiece will be painted afterwards, the VTMA is an economical solution. It is less conformable and gives a less fine finish, but it is ideal for this kind of work.
Can you completely remove deep scratches from aluminium?
Usually yes, but deep scratches require more stock removal. Start with a coarser grit until the scratch is gone, then work finer step by step. Be careful with thin sheet: the more you remove, the greater the risk of deformation.
How do you prevent new scratches when grinding aluminium?
First make the workpiece dust-free, work with even pressure and don’t skip any grit steps. Also don’t use abrasives that were previously used on steel: loose particles can cause new scratches and stains.
How do you prevent the abrasive from clogging with aluminium?
Choose an open structure, such as the unitized SAG, and work with light pressure so that little heat is generated. If you use an abrasive disc or belt, regularly spray SPAG Alu Grind Spray on it.
