SpEC

SpECcell Polyethylene 60

Closed cell polyethylene joint filler for expansion joints.

SpECcell Polyethylene 60 is a high-performance, semi-rigid, closed cell polyethylene foam joint filler designed for various construction applications. Its unique properties make it an ideal choice for expansion and isolation joints in concrete, brick, and blockwork structures.
Non-tainting and UV resistant, it is also suitable for use in potable water retaining and excluding applications, ensuring durability and long-term performance.
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Technical Details

The typical applications of SpECcell Polyethylene 60 include:
  • Structural expansion joints in concrete, brick, and blockwork
  • Isolation joints to infill panels
  • Bridge joints, abutments, pier hinge joints
  • As a back-up support for sealants
  • As a bond breaker for sealants over bituminous joint fillers
  • Anti-vibration pads for machinery bases
The advantages of SpECcell Polyethylene 60 make it a preferred choice for construction projects requiring reliable joint filling solutions. Its unique properties enhance performance and durability in various applications:
  • Non absorbent, closed cell
  • Readily compressible
  • Rot proof
  • Deformable – accepts temperature cycle with minimal load transfer
  • Non-tainting, suitable for potable water
  • Excellent recovery after compression
  • Resilient – will not distort under normal load from wet concrete
  • Easily worked – can be cut with a knife
  • Economical in use
  • Bitumen free – no bond breaker required for sealants
  • Chemical resistant – inert to most dilute acids and alkalis, resistant to oil and hydrocarbons

The technical information for SpECcell Polyethylene 60 provides essential data regarding its physical and performance characteristics:

Colour Dark Grey / Black
Density 60kg/m3 (+/- 5%)
Thermal Conductivity 0.038kcal/mh°C
Water Absorption <0.05% (D1751)
Operating Temperature -40°C to +70°C
Recovery at 50% Compression Average 97%
Extrusion at 50% Compression 1.5mm
Weathering Test No disintegration
Compressive Strength 0.34 N/mm2
Bacteriological Attack Resistance Excellent
Fire Effect Being a thermoplastic material, SpECcell Polyethylene 60 will melt. The rate of spread of flame will be minimized when confined in a joint.
Compression Loading Meets the requirements of BS 5628 Part 3

The application of SpECcell Polyethylene 60 is essential for forming and filling expansion joints in various construction settings:

In Concrete:
SpECcell Polyethylene 60 can be placed against formwork on the concreting side prior to placing the first section of concrete. It remains in place after the removal of the formwork, allowing for the subsequent pour to be cast directly against it. The board can then be cut back later to form the sealing slot.

In Blockwork and Brick:
When laying brick or blockwork, SpECcell Polyethylene 60 should be installed to create a sealing slot of the required dimensions. This ensures proper function and performance of the joint filler within the structure.

SpECcell Polyethylene 60 is available in various sizes to meet project requirements:

  • Thickness: 10mm, 15mm, 20mm, 25mm & 50mm
  • Board size: 1m x 2m

The warranty for SpECcell Polyethylene 60 is limited to the replacement of the product if it is proven not to perform as described in our Technical Data Sheet. For more information regarding the warranty details, please contact our team at SMCC using any of the contact methods available on this page.

Product FAQ

SpECcell Polyethylene 60 is suitable for structural expansion joints, isolation joints, bridge joints, abutments, and pier hinge joints in concrete, brick, and blockwork.
SpECcell Polyethylene 60 is applied by placing it against formwork before pouring concrete. After the concrete sets, it remains in place and can be cut back later to create a sealing slot. For brick or blockwork, it should be installed to form a sealing slot during the laying process.
SpECcell Polyethylene 60 is available in thicknesses of 10mm, 15mm, 20mm, 25mm, and 50mm.
SpECcell Polyethylene 60 offers numerous advantages including being non-absorbent and rot-proof, readily compressible, and resilient under normal loads. It is non-tainting, suitable for potable water, and provides excellent recovery after compression. Additionally, it is easily workable, economical, and chemically resistant to most dilute acids, alkalis, oils, and hydrocarbons. Its bitumen-free composition eliminates the need for a bond breaker for sealants, making it ideal for reliable joint filling in construction projects.
SpECcell Polyethylene 60 meets or exceeds the requirements of the U.K. Department of Transport Specification for Highway Works, U.K. DOE Specs. for Road & Bridge Works, BS 5628 Part 3, U.K. Department of the Environment General Specification, ASTM D1752, and ASTM D1751 for water absorption.
SpECcell Polyethylene 60 is preferred due to its non-absorbent, rot-proof, and compressible nature, making it ideal for various applications. It offers excellent recovery after compression, chemical resistance, and is easy to work with. Additionally, it meets relevant standards, ensuring reliability in construction projects.

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