RippyD
Active member
- Jan 24, 2016
- 1,258
- 4
- Thread starter
- #521
I've seen the same thing you're seeing with coatings in our environment. A while back I posted pros/cons for coatings in a wet environment - I'll try to find it. There were far more cons than pros. Water spotting is one of the biggest downsides. I know people will suggest topping the coating to prevent spotting. This leads to the question I've asked many times: if I have to top a coating what's the point of using one? At that point it's like a less manageable clear coat because you can't polish out water spots or scratches.Thanks Rippy for the clarification. It's suprising to me that in your test FK1000P didn't do as well as 845 and that 915 was so far back from them, since the majority opinion (rarely, it seems, based on back-to-back testing) is that FK1000P, Collinite 476, and DG 111 are the most durable, with 915 a step back and 845 even more. I could see how the difference could be due to wet vs. hot & dry climate, or due to just lack of controlled testing aside from yours.
PaulMys, thanks for the tip. I prefer the 476 application process as you describe it so I'll opt for that over 845.
So I'm gearing up for a 4-way test of 476, 1000P, 111, and PNS on the hood. Will be testing for durability through the rainy NW fall/winter, but also, in order of priority, for water spotting, contaminant resistance, dirt and dust shedding, and water behavior. On the adjacent fenders I have Gtechniq CSL topped with Can Coat, applied only 3 weeks ago, so that will be fascinating to compare alongside the sealants.
A big part of what I'm testing for is how pristine these protectants will keep the finish on my soft jet black paint. Coatings are great in a few ways, including a little bit of marring resistance and preventing contaminants from etching into the clear coat, but in my limited experience they are themselves fragile in terms of susceptibility to etching from water spots, and even, in some cases, bug guts and bird bombs, which makes them like a thin fragile clear coat that must be protected as much if not more than the clear coat itself.
Your sealant testing sounds great. Looking forward to seeing your results. No question I need to re-test Collinite 476. My 476 results seem questionable based on anecdotal feedback and need to validated.
My plan is to get ~5-8 long lasting sealants on the Rover before it gets cold out so I can test them over Fall/Winter/Spring. Likely DG 111, Collinite 845 and 915, DG 104, Mystery Sealant #5, FK 1000P, and PNS. I may also add I may get Collinite 476 as well.
The downside is that I won't get any othre testing done for ~9-10 months. The Sentra is going away to college with my daughter and the Boxster is mostly garaged November-April. I need more cars!