Cure rates are subject to many variables. These include, but are not limited to: ambient temperature, substrate temperature, relative humidity, applied film thickness, reducer selection, use of accelerators, retarders and air flow. Temperatures warmer than the standard conditions of 77°F (25°C), 50% R.H. will speed dry and cure times. Cooler temperatures will create slower dry and cure times.
Moisture on the surface can be disastrous. Problems are noticable when moisture comes in contact with the Awlgrip or Awlcraft 2000 Topcoats before they complete the first stage of curing.
Results can be:
These problems can also occur as a result of overcoating a primed surface that has not adequately cured or applying the topcoat to a surface that is contaminated with moisture.
Avoid applying topcoats in situations where rain, dew, fog or other condensation can contact the paint surface before the coating has completed the first stage of cure. Whenever feasible, erect some kind of cover or shade over the work area. This cover will help keep dew from the curing finish.
Condensation occurs when the air becomes completely saturated with moisture and the temperature drops below the dew point. At standard conditions (77°F (25°C), 50% R.H.), avoid applying topcoats when the temperature could drop below the dew point within 6–8 hours after the application.