Application & Curing2 min read

Pot Life, Working Time and Open Time: Three Coating Clocks to Separate

Separate pot life, working time and open time, identify when each clock starts, and record coating application timing correctly.

Updated · NANOLAB Knowledge

Timing terms in coating instructions refer to different events. Confusing the usable life of a prepared mixture with the levelling window on a panel can lead to using material that is no longer suitable or leaving a section too long before finishing.

Identify the start and end of each clock

Pot life usually concerns the usable period after a specified preparation event, commonly mixing components. Working time describes the practical period for applying or manipulating material under stated conditions. Open time may describe the interval during which a layer remains receptive to a particular next operation. Manufacturers do not always use these terms identically.

Write the actual action beside each time: mixed at, application started, section levelled, next layer permitted and vehicle released. A bare entry such as “30 minutes” is not enough to guide an installer.

Use the specified conditions

A time reported at one temperature, humidity or batch size may not transfer unchanged to another setting. Follow the product's conditions and restrictions. Do not assume that a mixture is usable merely because it still pours, or that a surface is ready because it no longer feels tacky.

For an illustrative system with a 45-minute permitted mixture life and a much shorter section-levelling window, the 45 minutes does not authorize leaving each panel unlevelled for that period. The clocks answer different questions.

Build a clear job record

Record product identity, document revision, preparation time and the environment specified by the instructions. If the procedure is interrupted, check which clock has continued running. Restarting a timer does not restart the chemistry.

Before scaling a new product to a full vehicle, use a compatible test area to establish the practical section size within its documented limits. When a timing term is ambiguous, ask the supplier what event starts it and what observable or documented requirement ends it. That clarification is more useful than applying a generic ceramic-coating timetable.

Related guidance

For product-specific application instructions, consult NANOLAB technical documentation or ask about your surface and intended use.

Polishing & Paint Correction8 min read

Car Polish and Compound: A Complete Selection Guide

Understand heavy cut compound, fine cut and finishing polish, then choose a paint correction process that fits your paint, machine and intended result.