I have a wood deck around a pool that uses chemicals... Any paint, sealer or other product that can handled heavy traffic, heavy sun fro 1:00 PM to sunset?

It is best to describe your project directly with home depots paint department

Add some sand or small stones to the weather seal. Thompson's is good but Sherman has best. The additives can ne mixed there on the spot. Say one coat of additives and two coats of plain amd should be good to go for 2 or 3 years. Plus will not be slippery when wet

Thompson sealer and protector for outside decks I found to be the best. And I have owned many decks

Best to call and speak with paint department or stop by store to speak with a specialist.

Behr solid stain or deckover smooth works great