Windshield Wipers Trash Place plastic windshield wipers in the trash. Metal wipers can be placed in the recycling if the blade is removed. Metal Pieces Are Scrap Metal If you remove all the plastic and rubber parts, the metal pieces can be disposed of with scrap metal. Ways to Reduce Use Silicone Windshield Wipers Consider using silicone wiper blades instead of traditional ones. They are built to last longer, so you won’t have to replace them as often.