SPI can be mixed and LEFT IN THE JAR FOR A WEEK... Mix a few more ounces and its good for another.
Your excuses seem weak to me...
My post was sort of a tongue and cheek for the "Age Old Question":
In 2017 can I paint over Rustoleum Auto Primer after months in the heat or not?
I agree, My weakness/excuses/laziness was brought out several times by moi.
