As as strange as it sounds, ScrapeRite manufactures plastic razor blades. Why on earth would you want a plastic razor blade? Designed for the automotive detailing industry, these blades can remove most stuck-on paints, adhesives, or other muck without damaging the surface like harder steel razor blades.
These standard-sized, double-edged, plastic razor blades fit in most razor blade holders. They can be used for scraping, peeling, or cleaning a variety of materials such as acrylic, plastic, vinyl, leather, painted metal, glass, rubber, tile, finished wood, and more.
The blades come in three different types: a rigid yellow blade, a flexible blue blade, or a flexible and long-lasting, general-purpose orange blade. ScrapeRite makes their blades with hot, injection-molded plastic for high strength and stiffness. The plastic also resists many chemicals and solvents.
For $9 you can buy a 25 pack of these plastic blades. If you need a holder you can buy five blades and a holder for $4 to $6.