Joint Filler

Masons™ PEF Rod is a cylindrical flexible closed cell polyethylene material, available in various diameters from 6mm to 50mm. Masons™ PEF Rod is suitable for domestic and commercial applications where gaps need to be sealed in conjunction with sealant or chalking compounds.

Masons™ PEF Rod provides the following functions:

  • Limits the amount and depth of the sealant applied into the joint.
  • Acts as a bond break to allow joint movement without undue stress to the sealant.
  • Acts as a barrier to the flow of sealant through a joint.
  • Will assist in providing an around the window frame and penetrations through walls.
  • For use with pre-cast concrete slabs and joints between brick and masonry.
  • Easy to install, non-toxic CFC free.
  • No water absorption.

Application

Masons™ PEF Rod is suitable for domestic and commercial applications where gaps need to be sealed in conjunction with sealant or chalking compounds. Always allow PEF Rod to be 25-30% larger than the width of the gap requiring the filling. Ensure that the rod is firmly in place.

Installation

Cut the PEF Rod to the required length and press the into the gap with a blunt tool to provide an even depth, avoid stretching and twisting the PEF Rod. Masons™ PEF Rod is not intended in areas exposed to sunlight.

Storage

Masons™ PEF Rod should be kept clean and dry during installation.

Product Data

Type: Closed-cell polyethylene foam.
Compliance: complies with ASTM standards as a P.E.F. Backing Rod
Material: Extruded Polyethylene foam is CFC free and non-toxic
Chemical Resistance: Unaffected by most chemicals
Temperature Range: -40°C to 70°C
Water Resistance: No water absorption
Colour: White

Details
  • Category
    Waterproofing Sealants
  • Range
    Masons Building Products
Specifications

Application

Masons™ PEF Rod is suitable for domestic and commercial applications where gaps need to be sealed in conjunction with sealant or chalking compounds. Always allow PEF Rod to be 25-30% larger than the width of the gap requiring filling. Ensure that the rod is firmly in place.

Installation

Cut the PEF Rod to the required length and press the into the gap with a blunt tool to provide an even depth, avoid stretching and twisting the PEF Rod. Masons™ PEF Rod is not intended in areas exposed to sunlight.

Storage

Masons™ PEF Rod should be kept clean and dry during installation.

Product Data

Type: Closed cell polyethylene foam. Compliance: complies to ASTM standards as a P.E.F. Backing Rod Material: Extruded Polyethylene foam is CFC free and non toxic Chemical Resistance: Unaffected by most chemicals Temperature Range: -40°C to 70°C Water Resistance: No water absorption Colour: White

For enquiries, complete the contact form below or call us on 0800 522 533.
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About the
Seller

We’re Masons – a New Zealand owned family business that’s been part of the building industry for more than 25 years. We develop products and systems that help buildings, and the people that make them, perform at their best.

Masons was built from practical experience. Trent Mason learned the trade in a bricklaying family, where doing the job properly mattered. When he moved to New Zealand at the age of 19, he brought that same mindset to the building site – always looking for better products and systems to make the job easier for the people around him.

That approach still motivates us. We focus on the complete building envelope and how each component interacts with the next. Wraps, air barriers, fixings, tapes, cladding elements – everything works better when it works as a system. Our goal is to reduce risk and remove guesswork so buildings perform the way they should.

Over the years we’ve become known as trusted problem-solvers – the people you call when you want something explained clearly, when you need to understand how components connect, or simply want confidence you’re making the right call.

We’re here to help make building smarter, simpler and more reliable – with great products, great systems and great people.

Masons. Delivering products and systems to build smarter.

Masons