Chemochromic paints for industries

Chemochromic paints are paints changing colours after contact with various chemicals.

The paints react to i.e. alcohols, esters, acetone, chlorohydrocarbons, aromatic compounds, ammonia or sodium hypochlorite (the active ingredient of bleach).

The colour change is caused by a chemical reaction between the pigment and a defined chemical.

Chemochromic paints can be used as indicators in various industries, e.g. as an indicator of contact with gas, pH change, presence of ions, as an indicator of moisture or spoilage.