Ron@Optimum Posted June 14, 2021 Share Posted June 14, 2021 I decided to test a new category of product that I'd been seeing excellent reviews for. 303 is a company that makes quality marine/automotive products and since graphene has become a hot ticket I wanted to see what all the noise was about. 303 Graphene comes in a 15.5 oz spray bottle and costs 19.99. Instructions say to apply to clean, dry paint, corrected if necessary. Using a MF towel or pad, apply in a crisscross pattern, allow to cure to a haze, then buff off. After buffing, the car can be driven. Videos on 303 suggest clay and polish, but my paint was in great shape and didn't need either (tested on the Acura since it's not ceramic coated). Graphene went on pretty easy, a little thicker than Hyper Seal or Wax. It hazed in several minutes, but the streaking was more difficult to remove. I thought about using an ONR dampened towel, but decided to keep the test pure. I went over the car several times to remove all hazing. Observations - the look was shiny and slick, comparable to Hyper Seal. I can't judge durability yet, but 303 says up to 1 year. I haven't driven in rain but I expect the paint to be hydrophobic. Negatives - the streaking took effort to remove, the product cannot be used as a drying aid, and it contains petroleum distillates (with some detailed health instructions). 303 claims enhanced gloss & depth, reduced water spotting, and extreme hydrophobic protection, but make no claims for hardness or chemical resistance. Gloss-Coat would be appear to be the superior product if compared one on one, given it's 2+ year durability, hardness, and chemical resistance. My curiosity is about Hyper Seal - does HS add any hardness or chemical resistance? So I asked: Dr G's thoughts - I don't think Graphene itself plays any role in the performance of 303 or similar products. The other components are creating gloss and water beading and longevity. For usage, Hyper Seal does 20-30 cars so it is much cheaper per application. If you transfer to an Opti-Seal bottle then you get 60-70 cars from one bottle. It is much easier to apply and offers greater hardness, chemical resistance, and water beading. The new formula also lasts longer than a year. What do you think? paulgyro 1 Quote Link to comment Share on other sites More sharing options...
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