Pot Life

What is Pot Life or useful life?

Pot life is a term used for two-component (or multi-component) coatings that cure through a chemical reaction (such as polyurethanes).

These systems consist of a base component (Part A) and a catalyst or hardener component (Part B). When these components are mixed together, a chemical reaction begins that causes the paint to dry.

Pot life refers to the usable time of multi-component paints on surfaces. Pot life begins from the moment the paint components are mixed and ends when the mixture becomes unsuitable for painting application. In other words, during this period, the viscosity of the mixture increases over time.

Factors affecting pot life?

– Hardener or Catalyst

Pot life depends on the type of hardener or catalyst used, which can increase or decrease pot life.

– Temperature

As temperature increases, reactions occur faster, resulting in a reduced pot life.

A low ambient temperature helps to reduce the mixture’s temperature, slow down the polymerization reaction, and consequently increase the pot life.

How can pot life be extended?

• Temperature control
• Use of small packaging
• Use of a slower hardener
• Store paint in a cool place away from direct sunlight.