How to Thread a Plastic-Coated Robroy Conduit

Robroy Industries produces a plastic-coated conduit under the brand name Plasti-Bond RedHot. Conduit is used to protect electrical wires that are run outside wall systems from mechanical damage. This specific type of conduit is coated in plastic to provide a second layer of protection against corrosion. It is ideal for locations where exposure to corrosion is high such as industrial and marine applications. Threading plastic-coated conduit requires a special process to assure the plastic doesn't jam the pipe threader.

Utility knife
Thread protector cap
Pipe threader

Instructions

- 1
  Remove the last 1/4 inch of plastic coating off the end of the pipe with a utility knife. The plastic is removed by using a motion similar to sharpening a pencil with a knife.
- 2
  Slide the pipe thread protector cap over the end of the pipe. Use the end of the cap as a guide to cut the plastic coating around the pipe with a utility knife.
- 3
  Make longitudinal cuts from the outside circumference cut to the end of the pipe every 1/4 inch. This allows the plastic to break off in small sections when threading to reduce the chances of it jamming the threader.
- 4
  Insert the pipe in the pipe threader and secure it by tightening the compression mechanism. Start the pipe threader and guide the conduit into the threading dye.

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