Fire Collars

NEUROCK PENETRATION SEALS –  Plumbing & Electrical

Ready for use, steel shell with a graphite material

Protecta® FR Collars

Protecta® FR Collars consist of a two part, coated circular steel shell that fits around plastic pipes (PVC-U, PVC-C, PE, LDPE, MDPE, HDPE, ABS, SAN+PVC) plastic pipe bundles – with or without cables, and bundles of cables. The collars have a secure and simple locking device.

The steel shell contains a graphite based material that reacts to heat, expanding in the event of a fire to fill the opening left by the melting plastic of the through penetration. It can be fitted on the outside of a wall or floor, even in single sided applications.

Main uses

The intended use of Protecta® FR Collar is to reinstate the fire resistance performance of flexible and rigid wall, and floor constructions where they are penetrated by various services.


  • High end fast expanding patented graphite material, certified Worldwide
  • Classified for fire sealing all types of constructions such as drywalls, masonry and concrete walls, concrete and composite floors, and solid or cross-laminated timber walls and floors
  • Classified for fire sealing all types of building service penetrations such as cable bundles, cable conduits, steel pipes, copper pipes, composite pipes, PVC pipes, PE pipes, ABS pipes, PP pipes and PEX pipe-in-pipes
  • Metal and plastic pipes are classified with commonly used elastomeric pipe insulations, continuous through the fire seal
  • Approved plastic pipe sizes range from smallest pipes available to Ø 400mm, each with a wide range of pipe wall thicknesses
  • Approved with a single collar in some concrete and masonry wall applications, reducing cost
  • Collars are available in two different heights for different fire classifications to maximise cost efficiency
  • Smaller pipes can be fitted within larger collars with the benefit of accommodating pipes that are at an angle, or if the opening around the pipe is too large
  • Fire classifications up to 240 minutes for integrity and insulation
  • Tested and certified for U/U pipe end applications
  • Very high sound insulation
  • Causes no deleterious effects on cPVC pipes like BlazeMaster, supported by mechanical testing evidence
  • No emissions – environmentally and user friendly
  • Simple to install using widely available standard fixings
  • Unlimited storage time (under correct conditions)
  • 30 years working life guarantee


Sound rating:

  • RW 58 dB – Collars installed as described in

Fire rating:

  • 240 minutes for both integrity and insulation dependent on application

Contact us to know more about how we can help you with your next project!