Fast, Flexible and Tough: Introducing the ME020 Class B Fire Rated Window and Door Sealing Membrane +

Abbie Bradshaw / 22 October 2025

Introducing the ME020 – Fast, Flexible and Tough. Within this article, unearth the full range of benefits of self-adhesive membranes, and latest Illbruck innovation, the Class B Fire Rated Window and Door Sealing Membrane + (ME020).

What is a self-adhesive membrane?

Self-adhesive membranes are designed to provide a strong bond between surfaces without the need for additional adhesives. The benefits that self-adhesive membranes provide are plentiful, with the ME020 being the latest Illbruck product in the range to provide these solutions.

What are the benefits of the ME020 and self-adhesive membranes?

ME020 is a self-adhesive, breathable window sealing membrane with the reaction to fire class of B-s1,do. As well as the fire class of B-s1,do, the ME020 also provides quicker application time, premeasured quantity and a wider temperature application range. The ME020 is the ideal solution for the high demands placed on window and façade sealing on high-rise buildings.

Application Time

The ME020 has been tested and proved to be 50% faster than traditional EPDM membranes with site applied adhesive. This makes the new ME020 an ideal option for fast moving projects where installation time is of the essence.

A Single Product

The ME020 is applied on projects as a single product, reducing waste packaging from multiple products on site. A simpler waste management plan can be achieved with less products, meaning fewer waste streams, storage containers and a reduction in the amount of waste storage. This decrease in waste not only benefits the environment but also lowers disposal costs, as there's less packaging to manage. Onsite benefits from having reduction in products, creating a cleaner and more efficient space to work.

Premeasured Adhesive Quantity

As the adhesive used with ME020 is pre-applied and measured, it is optimised for use, creating a more efficient application process. With the right amount available from the start, no product is wasted, and you get the most out for the product for cost.

Application Temperature

ME020 can be applied at a greater temperature range, ideal for projects that run in summer and winter. Installers can maximise the application temperature longevity, installing in temperatures of +5°C to +30°C.

Alistair Inglis, illbruck Sales Director said, ‘Our illbruck ME020 FR Window and Door Sealing Membrane SA has been in development for some time. Because the ME020 is self-adhesive, it presents greater challenges in meeting our rigorous technical standards, which include achieving a B classification for fire resistance, as well as ensuring strong weatherproofing and airtightness. As well as meeting our core principle of being vapour permeable, so to not trap moisture behind the membrane for future problems.

Our illbruck R&D technical team have done a great job to create a product that delivers on these technical attributes and delivering a product our customers can trust.

Self-adhesive sealing products are the preferred choice by a large proportion of our customers, due to the time saving on site and the overall cost savings. illbruck has a long and trusted reputation of brining self-adhesive solutions to market that add value, and we expect our ME020 FR membrane to be adopted by our customer base very quickly.

Having a Class B self-adhesive window and door membrane sitting alongside our plain ME007 FR sealing membrane that utilizes a separate adhesive to bond, now gives our customers choice. We look forward to discussing these options alongside our other through wall membrane and sealing solutions with customer new and existing.’

Stuart Sadler, Technical Services Director said, ‘We are very pleased to announce the launch of ME020, a fully self-adhesive window and door sealing membrane which further extending our new '+' range of FR membranes. It provides excellent water and air tightness as well as a Class B fire performance over a wide range of substrate types. The fully self-adhesive backing means it's quicker and easier to install when compared to other window sealing membranes currently available in the market.’

For more information about the ME020, please contact the illbruck team here. 

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