Prepare a metal part for painting

State whether the part is indoors or outdoors and exposed to moisture, frequent cleaning, UV or chemicals. Choose the coating for actual conditions, not colour alone.

For harsh environments or long service life, ask the finishing specialist to confirm the protection system. Paint does not perform equally in every condition.

Give a standard colour code or sample when matching existing equipment. Specify the desired appearance—matt, satin or gloss—and whether texture is acceptable.

Colour appearance changes with light, part size and substrate. For components seen together, request one shared colour and finish reference.

Mark these faces on the drawing or with annotated photos. Preparation includes holes, edges and welds; show where coating should cover edges and where paint must stop.

Burrs, sharp edges, weld spatter and hard-to-reach recesses complicate preparation and coating consistency. Parts designed for cleaning and drainage are generally easier to finish.

Allow for hanging holes or process grip points and state which contact marks are acceptable. For welded assemblies, decide whether beads stay visible or need preparation before coating.

Specify visual defects to avoid on visible faces and measurable functional requirements. An approved sample can set the colour and appearance reference for a run.

Provide material, required preparation, colour, appearance, masking zones, quantity and environment. If a specific coating is required, give its designation or technical data sheet rather than a vague trade name.