John E Davies Posted April 30, 2022 Share Posted April 30, 2022 Zamp says it is perfectly OK to use a mild automotive soap and water, which is what I have always done, I scrub the panels with a soft brush and a pole when I wash the trailer. They also say: “Do not use any harsh chemicals or a power washer when cleaning the panels as this could damage the anti reflective coating applied to the glass.” https://www.zampsolar.com/blogs/solar-101/how-to-clean-zamp-solar-panels But a whole lot of solar specialists say never use soap to clean a panel, the soap remains behind as a film and attracts more dirt and can harm that anti-reflective coating. Here is one article, these guys have developed specialty equipment using deionized water and rotating brushes. It is quite interesting, but there is no way a home or Ollie owner is going to do that! https://www.solarpowerworldonline.com/2020/05/pro-tip-never-use-soap-to-clean-dirty-solar-panels/ I just finished completely detailing the roof of “Mouse” and I used a car detailing spray (Griot’s Speed Shine) which has no waxes or silicones in it. It is perfect for prepping the surface with a clay bar before applying a carauba wax or a coating like Rejex. There were a whole lot of hard water spots on the panels. I used an artificial clay bar with Speed Shine and also scraped a couple of nasty sap deposits using a wet plastic scraper. The panels look great, the spots are gone. BUT did I damage or remove that coating? Are my panels screwed up? Comments welcome, do you clean your panels, and how? https://www.griotsgarage.com/speed-shine/ https://www.griotsgarage.com/brilliant-finish-synthetic-clay/ BTW that bar is truly brilliant compared to a real clay bar. It works great to take off bug carcasses and small sap drops. Really large sap tends to clog it up. I use a plastic scraper with Speed Shine to get those off. If you drop it, wash it off in a bucket of water and carry on. OTH, a genuine clay bar should be thrown out if dropped. One bad thing about the Griots one, it is round, so if you lay it down on the roof it can roll right off and go half way across your garage floor. 😳 John Davies Spokane WA 4 "Mouse": 2017 Legacy Elite II NARV (Not An RV) Two Beds, Hull Number 218, See my HOW TO threads: https://olivertraveltrailers.com/topic/john-e-davies-how-to-threads-and-tech-articles-links/ Tow Vehicle: 2013 Land Cruiser 200, 33" LT tires, airbags, Safari snorkel. Link to comment Share on other sites More sharing options...
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