Mix resin (part A) and catalyst (part B) at the job site, immediately prior to application. The pot life of AP 800-2 is very short (10 min.) so only mix quantities that can be used during a 10-minute period.
The mixing ratio of resin : catalyst will vary with temperature. The catalyst is Armor Plate 60, methyl ethyl ketone peroxide. Use 1.25 to 2.0 oz. of catalyst for each gallon of resin.