The epoxy provides the bond in these cases. Okay, now it's time to fill the hole. Different techniques and materials are used to repair plastic bases professionally. The quality and longevity of the repair depends on the method and your attention to detail. It takes a little practice to accomplish clean repairs without leaving big chunks of carbon in the molten material.
Carbon appears as black residue in clear plastic, weakening the repair job and making it look ugly.
The trick is to make the P-tex candle burn with a small, blue flame. Place the scraper and burning candle right next to the base and actually drizzle the plastic into the damaged area. Avoid any yellow flame to prevent carbon from forming, and roll any incidental carbon chunks onto the metal scraper. The pro's choice is the extruder gun. This is a device that works like an electric glue gun, melting the P-tex without igniting it.