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Products  >  Pef_backing_rod  >  WindowWorm P.E.F. Backing Rod
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WindowWorm P.E.F. Backing Rod

Is a cylindrical flexible foamed closed cell polyethyelene available in various diameters from 6 to 25mm

Key Features

  • Inert and doesn't react with sealants, foams or LOSP treated timber
  • Available in wide variety of diameters
  • No water absorbtion
  • Non-toxic, and CFC free.

Advantages

Will assist in providing an air seal around the window frame and penetrations through walls.Limits the depth of sealant applied into the joint.  Acts as a bond-break to allow joint movement without undue stress to sealant.  For use with pre and post cast concrete slabs and joints between brick and masonry.

PropertiesUnit
Box Size (mm): :
6, 8, 10, 12/13, 15/16, 18, 20, 25
Colour: :
White
Density (g/m³): :
2400-4800
Durability (years): :
50
Length (m): :
10, 20, 50 & 250
Material: :
Polyethylene, stabalizers, foaming agent
Temperature Range (°C): :
-40 to 70
Water Resistance: :
yes