You are wasting your time with the coat of epoxie. However there is hope for a quick easy job of it.
At our marina last year, a guy painted his deck with a product that not only provided great traction for the nonskid, but also sealed the deck and covered spider cracks. I was impressed as it was easy on the knees, nonskid that is, and seems to be holding up after a year of crusing. People from all over the marina are starting to use it.
Here is the website, it comes in a multitude of colors also http://www.ultratuff.net/marineprod.html
There are simlar product out there that are supposed to do the same, This one I have seen in action and am impressed, enough so to the point of doing my boat on the next haulout.