"Marine made products" . . . I think you guys are suckers . . . Get me a chemical analysis and I will back down, but your honkin' shower is flippin' gelcoat and your wife uses Scrubbing bubbles, and other particularly nasty stuff. Heck, Motorhomes are gelcoat, come to think of it flippin'
Kenworth's are gelcoat and I guarantee they aren't using marine grade truck wash detergent at the Truck Stop, and there are some damn shiny KW's out there
Soap and detergent are not dissimilar products and what exactly is in dish soap (detergent) that is "scratching" my "paint"? And what
is different is paint and gelcoat with the latter being WAAAAAAY more durable.
This reminds me of a stupid oil thread, but add in no science and no facts. From me either, I just know that my 9 year old gelcoat still shines, I am somewhat anal about it (some say a lot anal) and I use Windex if that's all I have in my hand at the moment. Heck 409, and yes, vinegar and water (waterspots) and I use whatever cheap detailer somebody gave me and then whatever wax I have laying around. And, yes, for nasties I use the Aquarium polish. Stuff works great. All of my boats have retained their shine over 30 years of this stuff. Same treatment and I have never bought a "marine" wax or "detergent" or "soap".
To explain my skepticism. I have stopped using shaving cream and use whatever "soap" I find when I step out of a shower in any hotel anywhere. Home too. Flip, if I can't find the shampoo I just use the bar of soap that's in my hand to wash my hair. My hair isn't falling out and my beard still grows like a weed. When I saw "hydrating shampoo" on a label I couldn't stop laughing. Show me a shampoo that isn't hydrating although I do recall a can of some carp when I was a kid that when you sprayed it on your head you could comb it through and it looked and felt like you had just shampooed. Don't know what that stuff was, but I heard it scratches anodized bow rails.
Rant off and primarily just for fun