I have not used PoliGlow. However, I have used acrylic coating on several of my boats. My boats get compliments. People say they look new! I looked at the PoliGlow and other products. I opted to use ProForm floor acrylic floor coating from Sam's club. It is Water Resistant, Scuff Resistant, and UV protecting. It only takes a few minutes to apply 4 very thin coats. The thinner, the better, as the stuff will run easily. I have had it on several boats for several seasons. Each season, I just wet sand the old coat lightly with 1200 and then recoat. You coat it by rubbing on with a fine cloth dampened with the acrylic coating. If you want to remove it, wet sand the hull with 600 and 1200. That will take the hull down to the gelcoat.
The boats stay shiny year after year.
Here is my 272 before last season:
Here is my 272 BEFORE reapplying acrylic this year:
Not much difference after a season on the water, in my opinion. I have experienced no flaking, discoloration, or any problem at all. Being at the waterline has not bothered it either.
Here is a photo of the product I use:
It is made by EcoLabs. I know it seems risky to use a product not made for boats, but I looked at the ingedients, and I could not see the difference nor the point of paying 16 x more money for a pint of a product packaged for boats. I gave the floor coating a shot, and I haven't been disappointed.
Enjoy,
Andrew