Copps Crusher Backing Epoxy 5 Gallon Drums K-001Crusher backing compounds are the ideal way to protect crushing machines from unnecessary damage or long term wear. Crusher backing is used to fill open cavities behind the wear parts and support or backup the wear surfaces in the crusher, protecting the machinery from friction, vibration, and impact during crushing operations. For example, Copps Industries non corrosive bushing lock is the industry standard for use in eccentric assemblies to lock the