[16] Painting tips

Date: June 1st, 2007 | Comments : none | Categories: DIY.

Here are a couple of tips that may prove to be useful when you are finishing a do-it-yourself stompbox.

Professionals who are looking to have the smoothest surface on metal will often outgas the piece before applying the finish. This involves heating the bare metal to drive out any gas that is embedded in the surface… the gas is not actually in the metal itself but in the very tiny pores of the surface. This technique is most often used when powdercoating a metal piece since the item is heated after coating to melt the powder, and any gas driven off the metal surface at that point could cause bubbles in the finish.

Another tip for a very smooth finish is to apply the flame of a propane torch to the metal surface after the box has been sanded and cleaned of any residue. The flame will flash off dust or lint left from the cleaning step and keep it from being trapped in the painted surface. If you use alcohol, acetone or other flammable solvent in the cleaning step, be sure to wait until it has evaporated before using the torch. You do not have to apply the flame to more than a second to any part of the metal as the dust will burn quickly — just a quick pass over the surface is all that is needed to help you get a mirror finish.


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