5) … treat and finish surfaces

5) … treat and finish surfaces

Finally, you might want to change the appearance of the surfaces of the materials you chose for your new product, and give them a different look. This is basically possible by treating the surface itself mechanically, in order to change its structure and look, or by applying a coating of a different substance, e.g. paint.

Brush or file

A metal brush is great at removing remnants of rust or paint that you want to get rid of. Rough surfaces can be smoothed by brushing with a metal brush, or, or on the contrary, you can use it for giving a smooth surface some structure.

Filing with a metal file smoothens sharp edges. It is also used to work on unattractive, thick welding seams, to improve their appearance. For already smooth surfaces, you can apply sanding paper, to make it even smoother…

Sand or Polish

…or sanding pads (which contain corundum particles) to make them shine.

Undercoat or prime, paint or coat

In case you would like to change the colour of any piece, some paint coating will do the job. Avoid spray paint, as it’s not healthy to use indoors. Rather roll or brush on your paint. Clean the surface thoroughly first. Then, apply a primer, which helps the paint to merge with the surface of the object you want to colour. Use water based paint, and always wash your rolls and brushes clean after use!