Finish Drying Too Fast
The Problem:
Finish Drying too fast.
The Cause:
Most finishes will dry too fast in high temperatures, above
90 degrees F. (32 C.) and low humidity (under 30% relative humidity)
a combination of both makes much worse. Also direct airflow
across the surface.
How to fix the problem:
Determine which of the above is the cause of the problem. Lower
the temperature and/or increase the humidity. Remember to STOP
the A/C 30 min.'s prior to application then re-start when product
tacks over usually about one hour, depending if it's waterbased
or oil based.
How to avoid in the future:
A simple tool such as a hygrometer will tell you what the job
site condition is and therefore you have the opportunity to
act accordingly. Dura Seal recommends changing your expectation
of the dry time if your application and drying conditions vary
from…
The coverage rate on the label (see Finish and Curing Parameters)
(JoeAl please link this)
A temperature above 70 degree F (25 C) and Relative Humidity
below 50%.
Note: Dry times either fast or slow are
affected by Temperature, Relative Humidity and Air movement,
either natural (window) or forced (HVAC) plus coverage rate.
Attention to these details improves success rates.
