Heijneker Posted June 8, 2020 Share Posted June 8, 2020 Of course Optimum stated that Optimum Power Clean (OPC) should be used diluted on paint, and not be used on glass. They also say it should be rinsed off thoroughly, preferably with running water. I would suggest you follow the instructions on the bottle. However, because my own car is a... ahum... suitable test subject, I would like to test the product for myself. So, if someone would like to make a suggestion for things to try, please let me know! Somewhere down the line I would like to test this more professionaly, but for now, i'm just fooling around. Concerning the weather; I live in the Netherlands, near Amsterdam (No, not all places in the Netherlands are near Amsterdam, before someone makes that joke) My car is red, with some panels having parts without clear coat 🙂 Things I have tried so far: - OPC 3:1 sprayed onto glass, left to dry completely (Even driven it with it on the windshield) and left to sit for an hour in the sun (16 C). NO etching has occured. Stains did not come off with a dry MF towel. Stains did come off with a Damp towel, but with a lot of effort. Stains came off more easily with ONR at 32:1 in a spray bottle and a dry towel. There was always a slight oily haze on the window. I seem to get that with ONR as well, but slightly less visible. - OPC 3:1 sprayed on to paint, left to dry completely and left to sit for A DAY, in cool temperatures, overcast, and slightly raining sometimes. Stains did not come off completely with a dry MF Towel, or a damp one. I did not try ONR at a stronger dilution. I applied OPC at 3:1 and left to dwell for 30 seconds. I then dried with a dry MF Towel and stains were gone. So, no stains or etching of any kind. - OPC 3:1 sprayed onto vinyl, left to dry completely. Stains came off mostly with a dry MF towel. Completely with ONR at 32:1 and a damp towel. - OPC sprayed onto vinyl, left to dry completely. Stains only came off after applying OPC again and left to dwell for 30 seconds and cleaned off with a dry MF Towel. This took 3 hits to remove the stains completely. Things I'm trying right now: - OPC 3:1 sprayed on paint, left to dry in the hot sun for multiple hours. - OPC 3:1 Sprayed onto Glass, left to dry in the hot sun for multiple hours. - OPC 3:1 Foamed onto paint, left to dry in the hot sun for multiple hours. - OPC 3:1 Sprayed onto vinyl , left to dry in the hot sun for multiple hours. - OPC Sprayed onto glass, left to dry in the hot sun for multiple hours. - OPC Sprayed onto paint, left to dry in the hot sun for multiple hours. - OPC Sprayed onto vinyl , left to dry in the hot sun for multiple hours. Things I want to try: - Removing OPC (3:1) with Opti Clean (on glass) - Removing OPC (3:1 with OPT Glass Cleaner and Protect (on glass) Things I have found so far: - OPC leaves the paint feeling SOOOOOOOOOOOOO nice and clean. - OPC seems to be very easy to completely remove with just a dry MF towel, followed up with a regular wash. - OPC is safe to use on glass (But, I haven't tried it yet it scorching temperatures) - OPC (3:1) hasn't caused me any issues regarding staining the rims on my car (OZ Superturismo, love them haha) So, as stated before, in the future I would like to test this more proffessionaly/thoroughly/clearly. Please let me know what you would like me to test further. habs33 and LostVulpine 2 Quote Link to comment Share on other sites More sharing options...
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