Review on FOSHIO Set Of 2 Orange Plastic Razor Blade Scrapers With 100 Plastic Blades - Ideal For Gasket, Sticker, And Adhesive Removal On Windows And Glass Surfaces by David Nelson

I used about 70 of these blades to take off the 12yo POS Diamond Shield from my Phaeton. They worked great, but there are some limitations:1) Keep the angle between the handle and the work surface as low as possible. Too high, and the blade will snap.2) It does great on automotive enamel. Not a scratch or paint damage any where until.3) Keep blades clean and swap more often than you think is necessary. If sand gets embedded in the plastic, you will scrape the paint.4) Use anything you can to make the scraper handle longer and fatter to decrease stress on your fingers and hands. I used a 2" diameter wooden dowel, cut a slit in the end, pushed about 2" of the scraper handle into the dowel, and then drove two screws through the dowel clamp it into place. Made a HUGE difference in the amount of force I could apply and prevented further bruising of my palms.All in all, these, combined with this solvent (https://www.amazon.com/dp/B000C025KQ) and a good quality spray bottle, made the job totally DIY. I had my film and adhesive removed in under 10 hours of total time. Just keep in mind you apply the solvent twice. once to soften the film, then to soften the adhesive. You must wait AT LEAST 10 minutes for the adhesive to soften.