Triflex StairCoat Reinforced

Fully reinforced PMMA system for stairs above occupied spaces
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CE certified

External stairs and stairwells are vulnerable to water, mechanical and chemical damage as they are not only open to the elements but are also susceptible to added downforce pressure from foot traffic, particularly at nosings. It is essential that these areas when over occupied spaces are reliably waterproofed and surfaced with a robust system to protect the integrity of the structure and contents beneath and to provide a safe and secure environment for users.

Featuring a combination of reliable waterproofing, highly durable surfacing on the treads and proprietary or resin based edge nosings, Triflex StairCoat Reinforced offers the perfect long term protective solution. The system is ultra fast curing and cold liquid applied, allowing installation to be completed quickly, without the use of hot works, and with minimal impact on users.

System highlights

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Dynamic crack bridging, fully reinforced, cold applied system

Triflex lead from the front. Featuring unique resins with enhanced elastomeric properties and high tensile strength fleece reinforcement, we deliver a totally waterproof solution that can accommodate movement and cracking within a structure. There is no risk from hot works during installation as all our materials are applied in a totally cold liquid form, curing to create a solution that lasts.

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Fast curing with rapid installation

Rapid curing and easy to install, Triflex allows buildings to remain occupied during installation, limiting access restrictions and unnecessary disruptions to everyday life. Installation can be carried out all year round and the system still cures quickly at temperatures down to 0°C.

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Asphalt overlay

Many stairs and stairwells have historically been waterproofed using asphalt which over time will fail. With more than 30 years' experience, Triflex StairCoat Reinforced is the ideal solution for directly overlaying failing asphalt. In fact, whatever the substrate, we can provide a quick, easy and reliable overlay solution.

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Safety and environmental

The solvent and isocyanate free resin technology has been assessed under BREEAM principles and can contribute to A+ ratings. The levels of skid resistance of a number of the finish variants make these particularly suitable for high risk, frequently trafficked areas.

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Versatile design

Available in either Quartz Design or Chips Design these system variants offer different textures and surface finishes, combined with over 50 standard colours the system can be tailored to meet aesthetic and project needs.

Triflex StairCoat

Application areas

  • External stairs and stairwells over occupied premises
  • High risk areas subject to significant levels of structural movement and cracking

Compatible substrates

  • Concrete, concrete repair materials and screeds
  • Asphalt and polymer modified asphalt
  • Existing membranes
  • Steel
  • Structural plastics
  • Timber

Suitable constructions

  • Cast in situ concrete
  • Permanent formwork with in situ concrete
  • Precast concrete planks with or without structural topping
  • Precast double tee units with or without structural topping
  • Steel / galvanised steel / structural plastic / timber constructions

System variants

Quartz Design

Triflex Quartz Design features a high quality, anti-skid quartz and a durable coloured finish. With a choice of four quartz aggregate sizes providing a range of textures and over 50 standard colours it is easy to see why this versatile finish is our most popular.
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Chips Design

Triflex Chips Design is a low maintenance, durable coloured finish with decorative anti-slip chips. With a range of over 50 standard colours, there are countless possibilities available, enabling you to create a tailored solution for your project.
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Triflex StairCoat colour card

Finish colours

Triflex StairCoat Reinforced is available in a range of over 50 finish colours and 2 finish options, the system can be tailored to meet aesthetic and project needs with special colours being produced to order.

For full details on the range of colours and finish options download the Triflex StairCoat Reinforced colour card below.

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Require an on-site survey or quote?

All installations are carried out by our network of Triflex Authorised Contracting Partners. If you have a project we can provide a free no obligation on-site survey and can put you in touch with local Triflex contractors in your area that will be able to provide you with a quote.

To organise your free on-site survey you can either complete our project enquiry form or contact your local Business Development Manager, who will be more than happy to discuss your requirements.

Triflex Authorised Contracting Partners can place orders by calling 01785 819119 or emailing

Project enquiry
Triflex StairCoat Nosing Examples


Triflex nosings are available in resin form to provide additional safety to a stair or stairway. By installing nosings onto the nose of each step, they help to clearly define the edge of the steps reducing the risk of falls, while protecting the edges further from potential wear and tear from heavy traffic.


ETA logo

Fully certified to the highest UK and European standards and classifications, including:

ETAG 005 certified (localised waterproofing membrane)

  • 25 year expected working life

Fire performance:

  • EN ISO-11925-2
  • EN ISO-9239-1
  • EN 13501-1

Manufacturer certification

  • ISO 9001 Quality Management
  • ISO 14001 Environmental Management
  • ISO 50001 Energy Management

Take a look at Triflex in action

Looking for support?

Your project is our project, that's our motto. If you require any support, have an upcoming project or just a general enquiry then please don't hesitate to get in touch, we're always happy to help.