Sanded ZIP's deck with 120 grit discs on a DeWALT 5 inch random orbital sander, attached to the ShoPac for dust extraction. The goal was to scuff the old epoxy coating to give it some tooth for the new coating to adhere to. We tried to avoid sanding all the way to bare wood, we just wanted to dee the old epoxy scuffed a little. Dust masks, protective goggles and gloves highly recommended.
We vacuumed off most of the dust then wiped the deck down with isopropyl alcohol to remove the last bits. Then we applied a new coat of West Systems 105 epoxy with 207 Special Clear Hardener, the 207 will not turn amber like the other hardeners do. Thin coats applied with a closed cell foam roller, then the roller bumps were lightly tipped with a 2 inch sash brush designed for oil based paints. The key for the brush is to find the softest bristles that we can so it doesn't leave ruts in the epoxy.
Epoxy Roll and Tip Video: https://youtu.be/fEASXqj3enw
Repair area was not coated, we still need a few more coats of stain there.
As mentioned before, the 105/207 coating does not need varnish if it does not have prolonged UV exposure.
Log of ZIP.
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