Term: potlife

Pot life (also known as working time) refers to the amount of time a mixed coating, adhesive, or other multi-component product (such as a two-pack epoxy or polyurethane paint) remains usable after the components have been combined.

In painting and coatings, pot life is critical because once the chemical reaction between the components begins (usually after mixing a base with a hardener or catalyst), the product starts to cure or harden. After the pot life expires, the material becomes too thick, unworkable, or begins to set, making it unsuitable for application.

Key Points:

• Measured in time (e.g., 30 minutes, 2 hours).
• Dependent on temperature: Higher temperatures shorten pot life; cooler temperatures extend it.
• Varies by product: Always check the technical data sheet (TDS) for the specific product.
• Important for planning: Only mix what you can use within the pot life to avoid waste and ensure proper application.

Example (Australian context):

If you're using a two-pack epoxy floor coating in Sydney during summer, and the TDS states a pot life of 45 minutes at 25°C, you may find the actual pot life is shorter due to higher ambient temperatures. You’d need to work quickly or mix smaller batches to avoid wasting product.

Understanding pot life is essential for professional painters and contractors to ensure quality finishes and efficient use of materials.