Self Amalgamating Tapes - PIB or EPR?

By Chris Dodds on 17th March, 2014

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Self Amalgamating Tapes - PIB or EPR?

Self Amalgamating Tapes

3M Scotch 23

PIB (Polyisobutylene) rubber based tapes have excellent amalgamation properties. However, generally these products are used more for general purpose or low voltage applications as the service temperature and electrical properties are generally lower than than EPR rubber based tapes.3M

EPR (Ethylene Propylene) rubber based tapes also have excellent amalgamation properties but with better levels of temperature performance and electrical properties are more often the first choice for higher voltage cable applications.

Scotch 23 Electrical Tape is a highly conformable 0.76mm thick, self amalgamating EPR (Ethylene Propylene Rubber) based, high voltage cable jointing tape. 3M Scotch 23 tape is non-vulcanising and shelf-stable with excellent electrical properties.

Scotch 23 Tape can be used as insulation for low voltage applications as well as insulation for high voltage cable joints up to 69kV, especially 11kV and 33kV.

3M Scotch 23 Self-Amalgamating Tape Features

  • Can be used to splice and terminate cables with temperatures to 130°C
  • Based on Ethylene Propylene Rubber (EPR)
  • Physical and electrical properties are unaffected by the degree of stretch
  • Self-fusing Scotch 23 tape
  • Excellent electrical properties
  • Polyester liner which will not stick to the tape upon unwind

3M Scotch 23 Tape - Compatible with all solid dielectric cable insulations :-

  • Polyethylene (high and low density) cables
  • Cross-linked polyethylene (XLPE) cables
  • Polyvinyl chloride (PVC) cables
  • Butyl rubber cables
  • Ethylene Propylene Rubber (EPR) cables
  • Oil-based rubber cables

3M Scotch 23 Self-Amalgamating Tape Applications

  • Primary electrical insulation for splicing cable from 600V to 69kV
  • Primary insulation for building stress cones on cables up to 35kV
  • Jacketing on high voltage cable splices and terminations
  • Moisture sealing LV-HV electrical connections
  • Bus bar insulations
  • End sealing high voltage cables


Further Reading:

Electrical Taping Skills : A Lost Art? Some 3M Scotch Taping Tips...

3M Scotch 27 Glass Cloth Tape

3M Scotch 88 Vinyl Plastic Electrical Tape



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3M Scotch 23 Tapes

Category:  3M Scotch Tapes

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