Kick time is the point in a two-component coating's cure cycle when the mixed material starts to thicken and set up in the bucket, signaling that the usable working window is closing.
Understanding Kick Time in Two-Component Coatings
“Kicking” refers to the exothermic reaction between an epoxy or polyaspartic resin and its hardener picking up speed. Early in the mix, the material is thin and easy to spread. As the reaction accelerates, viscosity climbs fast. Installers describe this moment as the batch “kicking” or “kicking off.” Once a batch has kicked, it can no longer be spread evenly and should not be applied.
What Speeds Up or Slows Down Kick Time
The same variables that affect pot life apply here: higher temperatures, larger mixed volumes, and darker pigments (which absorb more heat) all bring kick time sooner. Mixing smaller batches, working in cooler conditions, and using shallow trays instead of deep buckets all buy more time before a batch kicks.
Kick Time vs. Pot Life vs. Cure Time
These three terms get used loosely on job sites but describe different stages. Pot life is the manufacturer-rated working window from the technical data sheet. Kick time is the practical, felt moment an installer notices the material has started to set up: it’s the on-the-ground version of pot life running out. Cure time is much longer and refers to how long the coating needs to fully harden and reach service readiness after it’s already on the floor.
Reading the Signs On the Job
A batch that’s starting to kick will feel warmer in the bucket, thicken visibly, and may start to string or drag under the squeegee. Once you see those signs, that batch is done. Don’t try to keep spreading it or thin it to buy time.
Also Called
Kicking, Kick-Off Time
