If large chunks of plastic are missing, you must create a new "skeleton" for the repair:
: Use a wire brush or sandpaper to remove all loose, crumbling, or "eaten" plastic. Adhesives will not bond to degraded material. 2. Structural Reconstruction PlasticArmrestRebuildEaten.7z
When the plastic on an armrest begins to crumble or has been physically damaged, simple cleaning isn't enough. You need to structurally rebuild the missing material and resurface the part. 1. Assessment and Disassembly If large chunks of plastic are missing, you
: For snapped or hollow sections, you can bridge gaps using pieces of a coat hanger or metal mesh embedded into the plastic. Structural Reconstruction When the plastic on an armrest
: For cracks, use an airless plastic welder or a high-heat soldering iron to melt compatible plastic rods into the groove.
: For larger "eaten" areas, applying fiberglass cloth and resin provides a high-strength base that can be sanded to shape. 3. Filling and Shaping To restore the original contour: