Acrylic Paint on Plastic

Since acrylic paint is offered as an artist's paint, of course, its use on plastic is obvious. But depending on the application and requirements, not every acrylic color is equally well suited. Depending on the plastic, further pre- and post-work may be necessary. How you work with acrylic paint on plastic, we have put together here. Vor Primarily used instead of oil paints

Acrylic paint was patented and developed in the 1930s. However, the breakthrough came in the following decade. Acrylic paints were now offered in larger quantities as artist supplies. Compared to hitherto customary oil paints, the main advantage came from the fact that acrylic varnishes dry much faster.

In the meantime found in many other fields Acryl Acrylic paints quickly became so popular that they have long since found their way into numerous hobbies and home improvement, and even into crafts and industry. However, to properly process acrylic paint, the composition and operating principle should be known. For example, acrylic paint consists of the following components:

Color pigments

Binders (acrylic binder or acrylic resin)

  • Dilution (water or organic thinner)
  • Possible additives (faster drying, thinner, thicker paint, etc.)
  • Functional principle of acrylic paints and acrylic paints
  • Acrylic paints are already diluted with water, so it is 1-component paints or 1K paints. Water-diluted acrylic paints can be further diluted with water to apply the paint by means of glazing.

The binder is of particular importance

If the acrylic paint is applied, the dilution evaporates. As a result, the acrylic particles are deposited so close together that they formally stick together and form a waterproof surface. Now there are the acrylic colors but in different compositions.

More and "thicker" acrylic binder or more or less dilute water. But especially the binder can affect and allow very thin layers or just be applied relatively thick.

Not every acrylic color is suitable for every type of plastic

This is the first point to keep in mind when using acrylics on plastic. For example, if you are dealing with small-scale plastic models or figures, it is possible that an incorrectly chosen acrylic paint will be too thick and certain details will be easily covered.

On the other hand, not every acrylic paint is good if a plastic part is heavily loaded. So a higher mechanical load, for example, by regular Anlangen.

Preparing the plastic before painting or painting

The roughening of the plastic surface may also be important for particularly smooth plastic surfaces so that the acrylic paint does not dissolve quickly. If the acrylic paint was thinly applied to the plastic, the sanding marks would then be visible. Therefore, it may also be necessary to prime the plastic with acrylic paint before painting.

Considering mechanical stress with the aid of a seal

Due to the fact that some acrylic paints, as already mentioned, also react poorly to mechanical stress, further sealing with clear coat may be necessary. These are often 2-component paints with chemical thinners and hardeners. You must therefore ensure that the clear coat with the plastic, but also with the acrylic paint tolerates.

Tips & TricksNot only on plastic are the properties of the selected acrylic paint and its pre and post work on the workpiece crucial. Even with acrylic paint on wood or metal, the properties of the material must be considered.

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