Chrome acrylic paint is toxic

How to paint metal with acrylics

Acrylic paint is a paint that can be used on almost any surface. This also includes metal. However, when painting metal, one thing or the other must be observed and certain precautions must be taken.

Preparation of the metal

Before you can start painting metal, there are some preparations you need to make. This applies in part to new metal, but above all to metal that has been in use for a long time and perhaps has an old paint.

  • Remove old paint: Use a wire brush or sandpaper to remove old paint residue. Always wipe the surface with a damp cloth.
  • Cleaning: Now use a fresh rag to thoroughly clean the metal and remove all paint residues, other dirt particles and grease.
  • Sanding metal: Sand the metal as smoothly as possible and clean the material again with a clean rag.
  • Priming: Prime the metal with a primer that matches acrylic paints. If the metal is rusted, you should also apply a zinc chromate primer before applying the normal primer. You must then immediately use the normal layer of primer to optimally protect the metal from new rust.
  • Wait: Finally, let the primer dry thoroughly before you start painting.

Paint metal with acrylics

Once the primer has dried, apply a first coat of acrylic paint with a brush or paint sprayer. Then wait until this layer is completely dry and then apply another layer of color. If necessary, you are welcome to paint on additional layers of paint or patterns, but you should then let the metal rest for about two days before use.

More tips

  • It is best to work outdoors or in a well-ventilated area. While acrylic paints do not contain toxic fumes, any rust can be harmful.
  • Wearing a dust mask is not only recommended because of possible rust particles, but especially in the event that a scrap metal could contain lead.
  • In this case, two things are better: don't just apply one layer of primer, but rather two. On the one hand, this helps the paint to hold better, but also protects the susceptible metal from oxidation.
  • If you use a brush, you must not overload the brush with paint, as this could lead to a layer of paint that is too thick.