Advanced glass fibre reinforcement matting system


Cemprotec GFM is an advanced glass fibre reinforcement matting system used in conjunction with Flexcrete membranes to greatly increase additional tensile strength and tear resistance. Its special design provides fast wetting out properties and ease of moulding around the most complex roof details to produce a fully armoured, seamless membrane.

It is especially suited for the reinforcement of Roofdex HB in roofing applications where it imparts the strength of a traditional sheet system. Biodex and Monodex membranes can also be reinforced in the same manner where the substrate is cracked, crazed or where there is a need to provide additional protection against mechanical damage.


  • Two grades available – GFM 100 (lighter grade) and 225 (heavier grade).
  • Enhances tensile strength of Flexcrete fluid applied membranes.
  • Allows the formation of a seamless waterproofing system with the strength of sheet waterproofing.
  • Easy to mould around contours, protrusions and complex detail work.


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Uses Application Method Application Thickness Performance Pack Yield

Specially formulated glass fibre reinforcement matting for use in conjunction with Flexcrete membranes to impart additional tensile strength.

  • Brush
  • Hand

GFM 100 1m wide GFM 225 950mm wide Elongation = 5% Tensile Strength =16.60MPa (GFM 225)

GFM 100 100m GFM 225 125m

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Flexcrete CPD Presentations

If you would like to find out more about Cemprotec GFM, and Flexcrete's other Products why not arrange a CPD Presentation.

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