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Cesar Rivera
> 3 dayUsed as a quick detailer. Two coats.
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Richard L.
Greater than one weekGreat product!
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sharla
Greater than one weekWorks great with clay bar
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Russell Waldron
> 3 dayEasy to useVery pricey but works very well
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EG
> 3 dayDiluted this in a 1:10 ratio and it works great as a waterless wash or quick detail spray. Gloss is nice and hydrophobic properties are good too. My review may be a little bias because I have a ceramic coated vehicle and also use Carpro reload thus I already have a extremely shiny car.
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Mark Hill
> 3 dayI had my car done with Expel and then Carpro CQ Quartz and the Echo2 product is all I have used on it since I had it done. I spray it on any spot of bird droppings or Tree Sap and use a couple of clean microfiber towels and it looks like new. The key is to use multiple microfiber towels one to wipe down the spray and spot and a second to buff the spot. I even use it to wipe down my interior. I mix it 1-15 and it works great
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Danny
> 3 dayNot sure whats in it but its a bottle of magic. Ive tried a few on Amazon but nothing leaves a streak free shine like this.
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Ship
> 3 dayThis is a real timer saver - use between regular car washes.
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SkyeGoat03
> 3 dayGreat product, super slick , great rinseless wash media!
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Colin Mattson
> 3 dayFull disclosure: as far as Korean-made auto detailing products go, Im normally a Gyeon fan. Their product lineup and design approach typically hits my needs better than Carpro (though both companies make excellent products), and the support from the Gyeon USA office is unbeatable. But its 2021 and Gyeon STILL hasnt developed a waterless/rinseless wash, so Carpro ECH2O it was. On paper ECH2O sounds great, being usable at a variety of dilutions for purposes from clay lube to quick detailer to waterless wash to rinseless wash, and even claiming seemingly-insane things like works great even in direct sun. Living in sunny Phoenix, I didnt have much faith in that last bit. But... in practice ECH2O works great, being usable at a variety of dilutions for purposes from clay lube to quick detailer to waterless wash to rinseless wash, and even when doing seemingly-insane things like waterless washing in direct sun. Seriously. I set out to torture test it as a waterless wash in the midday Arizona sun, and… it worked. Perfectly. It still stayed moist long enough to work your section, it still suspended the dirt to prevent paint damage, and it still left behind a beautiful, slick gloss after the final wipe. Ive only got two minor gripes: 1. At most dilutions, it leaves plastic trim panels too glossy for my taste. You can knock this down with a clean microfiber after your final wipe (or by continuing on with a trim detail), but be aware your trim will look dressed anywhere youve used it or wiped up runs and overspray. This is less pronounced if youre diluting to rinseless wash dilutions. 2. ECH2O really likes to hide in nooks and crannies; even moreso than other quick detailers or waterless washes. This will be less of an issue if your vehicle is ceramic coated or recently sealed/waxed, but be prepared to shove the edges of your microfiber into panel gaps to wick out product playing peek-a-boo.