E30 Racer Posted February 26, 2020 Share Posted February 26, 2020 After restoring polycarbonate headlights, opti-lens seems like a reasonable option to regain some UV protection. However, it will not protect the lens from impacts the way a PPF can. Originally, I had planned to first install PPF, then coat with opti-lens. However, since the film I'm using (https://www.stek-usa.com/dynoshield) is very hydrophobic, I'm concerned opti-lens won't properly bond to it. Kind of an expensive coating to experiment with.. Has anyone applied opti-lens to the headlight, let it cure, then install PPF over it? On a related note, can I expect opti-lens to fill mild swirls? Thanks guys, I can't believe I just found this forum. It seems pretty awesome. Quote Link to comment Share on other sites More sharing options...
Ron@Optimum Posted February 26, 2020 Share Posted February 26, 2020 We recommend applying Opti-Lens after PPF - PPF protects against scratches and Lens adds chemical resistance. Opti-Lens is formulated to bond to plastic headlights and will work on PPF. Opti-Lens goes on very thin and is not a filler, so you might want to correct any swirls first. Quote Link to comment Share on other sites More sharing options...
E30 Racer Posted February 26, 2020 Author Share Posted February 26, 2020 Thanks for the response. How will I know if Opti-Lens has not bonded correctly? Will it just bead up and/or smear around on the PPF? Quote Link to comment Share on other sites More sharing options...
Ron@Optimum Posted February 26, 2020 Share Posted February 26, 2020 Opti-Lens will bond to the film, no smearing. Spray water on the headlights and it should bead. Quote Link to comment Share on other sites More sharing options...
E30 Racer Posted February 26, 2020 Author Share Posted February 26, 2020 Thank you. Is there a minimum application temperature? Quote Link to comment Share on other sites More sharing options...
Ron@Optimum Posted February 26, 2020 Share Posted February 26, 2020 minimum of 40 degrees - higher is better for bonding Quote Link to comment Share on other sites More sharing options...
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