Powercrete J Cure Times
Here we will look at cure times for Powercrete J. As you likely know, the biggest factor in determining cure time is this: what temps are involved? That can mean ambient temperatures -- but it can also mean 'artifical' temperatures which would include preheating the steel prior to application. Preheating the steel is the best way to have a controlled cure time (to a degree).
Now, there are really a couple of important "times." There is GEL TIME - which will tell you when the window is open for you to add another coat (coats need to be added to material in its gel state --- otherwise if the material is too cured; an anchor pattern will have to be re-introduced. Then there is 65 Shore D time. There is also a 75 Shore D time and a "dry" time but I won't be address those in this article.
Temperature Gel Time 65 Shore D Time
80F 30 minutes 4 hr 45 minutes
90F 25 minutes 2 hr 50 minutes
100F 18 minutes 2 hr
110F 16 minutes 1 hr 40 minutes
120F 15 minutes 1 hr 20 minutes
140F 13 minutes 40 minutes
