Working Time of the Epoxy
You only have approx. 5 mins to apply the epoxy onto the surface. When doing your seal coat you are only mixing 1 quart of material total, which is easily brushed on within the 5 mins. The flood coat is being poured on which is also easy to apply within the 5 mins.
You have 20 minutes to get your next batch poured up against the previous batch so there is no need to rush the batches as the clock resets with each new batch that you pour. For large bar tops, several people can help. One person can mix a batch while the other pours. Repeat the process until the entire area is covered.