Tape is a beneficial filler material in part due to the added benefits that tapes made of various materials can add to your product. Such materials include:
Polyimide tape: This type of tape can be used in high temperature applications and would be a helpful addition to assembly cabling that will be required to handle high-temperatures.
Water-swelling tape:This is a filler that will swell to offer an additional line of protection to the conductors held inside of the jacketing in case it is damaged, leaving the tape as the only barrier to protect the conductor. While a material like this may cost more initially, it has the potential to save your wiring system from shorts and water damage.
PTFE tape: This type of tape is also well suited for high heat and high friction uses. It is very durable and can withstand industrial applications. If your wire will be used in a rugged environment, ask your manufacturer if this type of tape would be an effective option for your cable’s wiring.