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Marlon Toploc

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Key features

  • 16mm 7wall polycarbonate glazing system
  • Highly versatile system
  • Can be adapted into a number of configurations
  • Suitable for cold curving
  • U-value 1.78W/m2K
  • Available in Marlon BioPlus


  • Vertical Glazing
  • Partition Walls
  • Pitched Rooflights
  • Curved Rooflights
  • Rainscreens 
  • High natural light transmission
  • Thermally insulating multiwall panels
  • UV protection both sides
  • 200 times stronger than glass
  • Light in weight and easy to install
  • Watertight
  • Suitable for cold curving
  • Free thermal expansion
  • Excellent fire performance
  • Limited warranty

    Structure: 16mm 7wall

    Colours: Clear (g), pearlescent, specials*

    UV protection: Both sides as standard

    Options: Available in Marlon BioPlus

    *Subject to minimum order quantities

    (g) – glass effect

    Curved - Minimum cold curving radius 4000mm

    Marlon Toploc, curved rooflight

    Pitched - Minimum pitch 5˚

    Marlon Toploc, pitched rooflight


    Marlon Toploc, vertical facade, partition

    * suitable for use with the VF55 & VF 90 glazing frame systems

    Clear (g)64%60%
    Pearlescent PW56%33%


    • Marlon Toploc is a high quality, extruded, modular multiwall polycarbonate panel with a co-extruded UV resistant coating
    • As polycarbonate is a thermoplastic, it is important to take thermal expansion and contraction into account during any installation process.
    • Marlon Toploc has been independently tested to various Fire Standards; for the most current certification please contact our Technical Department.
    • Marlon Toploc panels are REACH and RoSH compliant, and 100% recyclable
    • Any colour option is a through-colour so the colour of a cut edge will match the colour of the surface.
    • Marlon Toploc panels are covered by a limited warranty.  For full details contact our Technical Department

    • Standing seam surface finish 
    • Suitable for rooflights, canopies and façades
    • Can be installed in vertical, pitched and curved applications
    • Polycarbonate connection cap is light in weight and maximises light transmission 



    Load (kN/m2) Span (m)
    0.5 1.93
    1.0 1.53
    1.5 1.34
    2.0 1.22


    • Flush surface finish 
    • Suitable for rooflights, canopies and façades
    • Can be installed in vertical, pitched and curved applications
    • Aluminium connection profile enhances spanning capabilities 


    Load (kN/m2) Span (m)
    0.5 2.33
    1.0 1.85
    1.5 1.61
    2.0 1.47

    Suitable for use with the VF55 or VF90 glazing frame profiles

    As a condition of ensuring that Marlon Toploc panels perform at optimum throughout their service life and retain light transmission properties, it is recommended that the panels be cleaned periodically using suitable household cleaning agents as follows:

    • Use lukewarm water to rinse the sheet and soften dirt.
    • Make up a solution of lukewarm water and ordinary household cleaner or a mild soap and use this to wash the panel.
    • A sponge or soft cloth should then be used to gently remove dirt and grime.
    • The cleaning process should then be repeated and the panel rinsed and dried with a soft cloth.


    Care should be taken to observe the following precautions:

    1. Do not scrub Marlon Toploc panels with brushes or sharp instruments as they will mark easily.
    2. Never steam clean, use low pressures for pressure washing.
    3. Avoid any abrasives or cleaners of a highly alkaline composition.
    4. It is generally advisable in all instances to test any cleaner on a sample piece of the Marlon Toploc panel first and it should also be remembered that cleaners and solvents which state that they are suitable for cleaning polycarbonate may not be safe for use on the UV protective surface of the panels.

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