franleck
Just a follow up to this.
I almost made the same mistake. If you look closely at the instructions for the Envirotex where it show the coverage area, it actually states:
Coverage: (Surface sealed prior to coating)
Layer is approx, 1/16″ thick
Gallon Kit …….32 square feet
Which it sounds like from your description they are pretty close.
Where I think the confusion comes from is they suggest applying the product at no more than 1/8″ per layer. Which is the next thing stated below the coverages given.
Hope this helps some folks out.
Will