Scraperite has taken their patented double-edged blades and made them wider to tackle scraping on large surface areas! At 4 inches wide, this blade offers nearly 3 times the coverage area per stroke as the standard blades. It is also nearly twice as thick as the standard original blade to achieve faster workflow with safe, effective performance. The added thickness makes this blade tougher, able to withstand repeated use and cover wide areas before requiring replacement. Blades naturally lift dirt up and away and can be easily wiped clean after each stroke. Unlike scrubbing pads and sponges, ScrapeRite blades are much better at scraping targeted areas to prevent wider damage to underlying surfaces. They also offer added safety to the user by reducing the risk of injury by laceration, making these blades safer for the surface and the user! The General Purpose Orange is a forgiving material soft enough to be used on most surfaces including delicate surfaces like automotive paint. They are made from the softest material and their natural lubricity and pliability make them the ideal choice to use on automotive paint, glass, plastics and lcd screens. Its resistance to chemicals like acetone make it great for removing decals. This larger size blade is excellent at removing vinyl lettering and residue. This blade is also ideal for the marine industry! Use it to clean directly on gelcoat, fiberglass, stainless steel, plastics and other surfaces. It is extremely effective at removing barnacles on vessels. Far more effective than scrubbing pads, as blades target the marine life at the surface of the vessel and lifting it up and away from the surface. You can use ScrapeRite blades anywhere you would use a metal blade without the fear of damaging the underlying surface. This material is approved by Alcoa and Boeing for use on aircraft alloys. While these blades can be on just about any surface, the use of chemicals or solvents to help clean away the surface may destroy the blade and damage the underlying surface. The Orange General Purpose blades are resistant to the following solvents: