- Unit E8 Voyager Park, Portfield Road, Portsmouth, PO3 5FL
Fast, Flexible & Fully Reinforced
Silflex F1 is Siltec’s rapid-curing, single-component liquid waterproofing system designed to deliver instant results without compromise. Ideal for flat roofs, balconies, gutters, and complex detailing, this system provides unbeatable versatility and a smooth, seamless finish every time.
Key Benefits:
Perfect For:
Flat roofs, gutters, upstands, detailing work, and refurbishment projects.
Fast-track your waterproofing with Silflex F1 — available now from Siltec UK.
Ultra-Durable. Seamless. Engineered for Performance.
Silflex PMMA represents the next generation of liquid-applied waterproofing — a high-performance, two-part PMMA (polymethyl methacrylate) system delivering outstanding strength, flexibility, and chemical resistance. Developed for demanding environments such as car parks, podium decks, and balconies, Silflex PMMA ensures a fully bonded, watertight finish built to withstand heavy use.
Key Benefits:
Perfect For:
Podium decks, balconies, car parks, high-traffic roofs, and complex detailing.
Experience the power of PMMA technology with Silflex PMMA – engineered for performance, built for endurance.
One of our team will get back to you as soon as possible.
Siltec offer everything a client needs. From initial advice and specification, access to our approved contractor network, design assistance and on site progress reports.
0800 001 4567
At Siltec, we understand that every project is unique — which is why our Silflex Liquid Waterproofing Systems are designed to offer the flexibility, performance, and reliability needed for both new build and refurbishment projects. Each product within the Silflex range has been carefully engineered to provide seamless, long-lasting protection in even the most demanding environments.
A rapid-curing, elastic, seamless, self-levelling, and self-terminating polyurethane waterproofing system. Silflex F1 is ideal for new build and refurbishment applications in cold, warm, and inverted roof formats. Its unique formulation allows for application at low temperatures, ensuring consistent performance throughout the year.
Key Advantages:
- Fast-curing technology for time-critical installations
- Seamless and fully reinforced for long-term durability
- Excellent flexibility and crack-bridging capability
- Suitable for varied roof designs and temperature conditions
- Simple, single-component application
A two-part, rapid-curing, fleece-reinforced PMMA waterproofing system designed for exceptional strength, flexibility, and resistance to chemical and mechanical stresses. Silflex PMMA provides a fully bonded, watertight finish suitable for high-traffic and high-stress areas such as podiums, car parks, and balconies.
Key Advantages:
- Advanced PMMA chemistry for superior durability and adhesion
- Wet-on-wet application for a continuous, seamless membrane
- Outstanding resistance to mechanical wear and chemical exposure
- Ideal for complex detailing and heavy-use environments
- Customisable layers for tailored project requirements
Discover the benefits of our Silflex F1 and Silflex PMMA liquid waterproofing systems – trusted by professionals nationwide for speed, strength, and reliability.
For product details, pricing, and lead times, contact our Sales Team today at [email protected]
Let’s find the right Silflex solution for your next project.
Take a look at some of the common questions we get asked by our customers here at Siltec.
Siltec Technical Statement - Standard Roof Falls to Achieve Drainage and Ponding Rainwater
Siltec Technical Statement - Standard Roof Falls to Achieve Drainage and Ponding Rainwater
Siltec Technical Statement - Moisture Content in a Concrete Substate - Feb 2023
Siltec Technical Statement - Silflex Winter Advice - Dec 2022
Siltec Technical Statement - What Signifies a Level Deck...
Siltec Technical Statement - The Use of Additional Plywood or OSB in Warm Roof Deck Design
Siltec Technical Statement - Non-Standard Details and SILTEC Warranty Cover
Flat roofs constructions, including the deck, are subject to external fire spread. When a flat roof construction is tested for its external fire performance (penetration through the roof construction and surface spread of flame), it is classified within the European system as highest BRoof(t4) through to lowest FROOF(t4).
Not all flat roofs can be classified, such as existing roofs. Some do not need to be classified due to their inherent ability to stop external fire spread, such as gravel and paving slab finished inverted roofs and protected roofs, so use is unrestricted.
With tested roofs however, Siltec are proud to have an extensive range of tested systems that can provide the highest BROOF(t4) performance classification for potentially hundreds of flat roof permutations that include single ply, liquid, hot melt, and bituminous waterproofing. This provides our clients with a full range of solutions whilst still complying with HM Government Building Regulations.
