Paints that react to light 

Photochromic paint is in addition to other special paints that "react", among the reaction effect paints. If you don't know what it is, do you know those glasses lenses that change colour depending on the light? As a specialist in the field of effects, Stardust has developed this special effect paint, which is sensitive to changes in light and is called photochromic paint.

These paints are capable of changing colours, making a rapid change in the appearance of its surface, from the colourless / transparent state to the coloured state. This happens when the paint is exposed to light, especially to UV radiation and other types of very white light.

The change in colour appears gradually. The more UV light the paint absorbs, the more intense and brilliant the colour becomes. When the light decreases, the paint returns to its original appearance.

Photochromic paint

The paints are available in an odourless acrylic formula, preferably sprayable, in :

- 2 colours in stock (Blue and Red).

- 2 sizes (250 ml and 1 L).

Other colours and formats can be ordered, depending on quantities.

It is possible to play with the background colours, as these colours are semi-opaque, i.e. they do not completely cover the background.

For example, in the coloured state, a blue colour applied over a yellow background will give a green colour.

Photochromic paint works under the following conditions :

- To activate, it needs intense and natural light. Sunlight activates it completely and immediately. The photochromic effect is activated very slightly in the presence of indirect light (reflected from the walls in a room).

- It is not advisable to use photochromic paint permanently outdoors, as the sun will damage it quickly and it will no longer work after a period of time.

Reaction effect

Unlike a classic paint, whose coloured pigments are fixed and immobile, a reaction paint is in a way a "living" paint because it is able to change (reversible effect) and above all to be sensitive to its environment, by communicating a change in its language: the colour.

It could be compared to a plant that opens or closes to capture the sun's rays.

Durability

Irreversible paint, as opposed to reversible paint, is activated only once. Photochromic paint, on the other hand, is what we call a reversible paint, capable of changing its colour a limited number of times. It is estimated that these paints last for a few thousand changes, beyond which they will no longer change colour.

Magnetic paint and rust effect paint

Thermochromic paint