Just finished this for a client this morning
DIY DETAIL 8-year coating, their most chemical resistant consumer coating.What brand of ceramic coating?
The owner thinks it looks that way too!Looks brand new!!!
DIY Gold Standard Polish can be used to clean the trim, then I used Turtle Wax, Graphene Acrylic tire shine on the black trim.Looks great!
What products do you use to protect the black plastic textured trim that’s all over cars these days?
Just a one-step using DIY DETAIL, Gold Standard Polish, their Gold Waffle Pad and their 25mm DA on speed 3. Three passes with the polisher per section.Did you have to do a lot of cutting or just a one step?
There are no such 'requirements' on the coatings I'm using. In fact, they tell you *not* to "freshen up the coating with a spray ceramic topper."No ceramic coating is going to last 8 years. You can make all the claims you want, and I've tried them all. Read the fine print of these guarantees.
The last guy told me "As long as you have us freshen up the coating with a spray ceramic topper every 6 months (with a cost of $125/application) your warranty is good for 10 years." What a bunch of BS. Pro-grade ceramic coatings last 18-24 months.
It may not be dead, but to me most coatings do not exhibit hydrophobic properties once past year 1-3 (max). If the coating is beading, then it's done to me. It's only useful to me when the beading is strong so I can airdry the car. Is there some protection still on the surface? Probably.So 3 different coatings reacted differently under extreme conditions. Granted, the DIY 3-year appeared dead, but was it really? Or did the amount of salt simply clogged it?
Saying that it failed outright can't be determined...yet. All it means is that the other two coatings were better at shedding mineral contamination in this instance.
I had a 1-year coating on my wife's car that after washing, I believed was dead. A simple, cheap and quick decontamination with water spot remover brought it back very close to 100%. Water beading was like new and the paint was super slick under the drying towel. Had I only judged by the initial wash results, I would have been totally wrong.
So like I said, other than showing that in this instance, DIY 3-year didn't shed mineral contamination as well, it proves nothing.
Too, DIY DETAIL does not recommend toppers, or multi ph washes or cleaners, so I don't know where you got that from.
Calling it 'snake oil,' and coming to a hard conclusion with only partial information, probably isn't the best idea.