SR15 Silicone Thin Coat Render
Approx. 8 to 10m² per 25kg
+5˚C to 25˚C for a minimum of 24 hours
25kg Bucket
Less than 85% for a minimum of 24 hours
10 to 40 minutes @ +5˚C to 25˚C
Max 2%
Cutting-Edge Silicone Technology
SR15 Silicone Thin Coat Render is created for modern construction and BBA Approved, harnessing the power of advanced silicone polymers. This revolutionary formulation results in a render that not only offers exceptional aesthetic appeal but also stands up to the rigours of the elements with extraordinary resilience.
Thin Coat Mastery
SR15 embodies the essence of thin coat rendering. With its ultra-fine application, it achieves a sleek, smooth finish that enhances the architectural vision while providing a robust protective layer. The thin coat technique ensures that the finish is lightweight yet incredibly durable.
Easily applied using a stainless-steel trowel, or suitable spray equipment depending on the grain size, simply use the size of the aggregate to gauge the thickness of the render when applying to the substrate i.e.: ecorend SR15 = thickness 1.5mm. Once the render is applied, the finish can be done with a plastic float working the material in small circular motions, creating a natural random surface.
The easy application results in a flawless finish that complements the architectural design, providing a visual testament to the attention to detail of contractor craftsmanship.
Flexible Finish
SR15 Silicone Thin Coat Render boasts impressive flexibility and exceptional resistance to cracking. Its advanced formulation allows it to adapt seamlessly to structural movements, ensuring long-term durability. Even in environments prone to temperature fluctuations or structural settling, SR15 remains a remarkably resilient silicone render, maintaining its sleek finish without succumbing to unsightly cracks.
Hydrophobic Shielding
SR15’s silicone-rich composition imparts a hydrophobic quality, making it inherently water-resistant. With a water absorption performance score of W3 (Low), you can be assured this feature acts as a shield, repelling moisture and safeguarding the underlying substrate from potential damage caused by dampness and water ingress.
Vapour Permeability
While offering formidable protection, SR15 remains breathable, allowing moisture vapour to escape. This breathability is crucial in preventing issues such as trapped moisture and condensation, which can lead to structural degradation over time.
UV-Resistant Formulation
SR15’s silicone-infused structure ensures that it retains its colour vibrancy, even under prolonged exposure to harsh UV rays. This resistance to fading preserves the aesthetic integrity of the finish, ensuring it remains almost as good as the day it was applied.
Substrate Versatility
SR15 Silicone Thin Coat Render is engineered to adhere seamlessly to a diverse range of substrates, including masonry, concrete, and various other common construction materials. This versatility ensures that SR15 is a reliable solution for a wide array of architectural projects.
VOC-Free Formulation
SR15 has a VOC-free formulation which has a low environmental impact. This absence of volatile organic compounds aligns with modern construction’s emphasis on creating healthier indoor and outdoor environments.
Built on our commitment to high-quality exterior finishes, SR15 is tailored for specifiers and contractors who want both aesthetics and performance. This render system offers a durable solution that exceeds the capabilities of traditional silicone renders. Elevate your projects with SR15 for a long-lasting, excellent finish.
What finishes can be achieved with ecorend SR15 Silicone Thin Coat Render?
ecorend SR15 Silicone Thin Coat Render delivers a consistent and modern textured render finish, typically achieved using a plastic float in circular motions, suitable for contemporary façades. This makes it ideal for both residential and commercial projects where a clean, high-quality aesthetic is required.
The finish for ecorend thin coat render systems is dependent on whether the applicator hand or spray applies the top coat. The finish should always be completed to match the approved on-site sample.
Does ecorend's silicone thin coat render need painting?
No, our silicone thin coat render is through coloured, meaning the pigment is integrated into the material itself. ecorend SR15 does not require painting after application, which:
- Reduces long-term maintenance costs
- Eliminates issues with peeling or flaking coatings
- Maintains colour consistency across the façade
What makes ecorend SR15 different from other silicone renders?
ecorend SR15 stands out due to a combination of performance, sustainability, and UK manufacturing quality:
- Manufactured in the UK using premium, quality-controlled materials
- Formulated with advanced, high quality silicone for excellent water repellence (W3), vapour permeability and flexibility compared to cheaper silicate-based products
- VOC-free composition, supporting healthier building environments
- Highly flexible formulation for excellent crack resistance
- 100% recyclable packaging across tubs and materials
- Over 90% of raw materials sourced locally, reducing transport-related carbon impact
This combination ensures reliable on-site performance and reduced environmental impact, making it a strong choice for modern construction.
Can ecorend SR15 Silicone Thin Coat Render be spray applied?
Yes. ecorend SR15 can be applied by both hand (trowel) and spray equipment, depending on the project requirements and grain size. Please contact our expert technical team for advice on suitable spray equipment.
Which substrates can ecorend SR15 be applied to?
Suitable substrates include:
- External wall insulation (EWI) systems
- New concrete block
- Smooth brick
- Rough brick
- Hacked off render
- Lightweight block
- Existing render
ecorend SR15 must be applied over a suitable base coat that has been primed with ecorend SP15 Silicone Primer for optimal adhesion and finish. To confirm the correct system specifications for your project, please use our Quick Spec tool or request a bespoke specification from our technical team – and always consult the product Technical Data Sheet.
Is ecorend SR15 Silicone Thin Coat Render BBA certified?
Yes. The ecorend SR15 thin coat render system is BBA certified (Certificate 18/5592), providing assurance of performance durability, system integrity and suitability for UK construction conditions.
What is the best way to achieve a durable coloured render finish?
For best results:
- Request a bespoke specification for your project from the ecorend technical team
- Use a complete render system (basecoat, primer, topcoat) and follow your specification correctly
- Follow correct application process including relevant temperatures and curing conditions
- Maintain consistent batch usage across elevations
- Avoid mixing different manufacturers’ products to protect system integrity
What maintenance is required for silicone thin coat render?
Silicone renders are low maintenance, particuarly as their hydrophobic surface helps resist dirt and organic growth. They typically only require:
- Occasional cleaning with low-pressure water – read our guide to cleaning render here
- Occasional inspection for damage or impact areas
What is the difference between silicone render and silicone-acrylate render?
A fully silicone render like ecorend SR15 uses premium silicone resins to deliver maximum breathability, superior water repellence, and self-cleaning performance, helping façades stay cleaner for longer with minimal maintenance.
Silicone-acrylate renders combine silicone with acrylic resins to enhance flexibility, but do not typically match the long-term performance of a fully silicone system.
For projects requiring high performance, durability and reduced maintenance, silicone render such as ecorend SR15 is the preferred choice.
Can ecorend SR15 be used with external wall insulation (EWI) systems?
Yes. SR15 is designed as a topcoat within a full render system, including EWI applications, where it provides:
- Decorative finish
- Hydrophobic (water-repellent) protection against driving rain
- UV resistance to maintain colour stability
- Breathability to prevent trapped moisture
- Flexibility to resist cracking over time
The full ecorend SR15 EWI system provides a combination of thermal performance, durability, and aesthetics:
- Improved energy efficiency – reduces heat loss and lowers heating costs
- Crack-resistant and flexible finish – accommodates structural movement
- Highly water repellent yet breathable – prevents moisture ingress while allowing vapour to escape
- Wide range of colours and textures for design flexibility
- Low maintenance façade performance
This makes it suitable for both new build and retrofit projects.
Explore Our Colour Range
We offer an extensive and vibrant colour range, meticulously curated to provide architects, builders, and homeowners with a rich palette of options, from earthy neutrals to bold statement hues, enabling boundless creativity in achieving the perfect aesthetic harmony for their construction and architectural projects.
African Ivory
Antique White
Autumn Leaf
Blue Sky
Butter Cream
Chalk White
Cornish Cream
Dusk and Dawn
Earth Taupe
Fired Copper
Fired Earth
Luckworth Blue
Marble White
Mint Green
Moon Stone
Mountain Grey
Old Gold
Orchard Pink
Oyster Lily
Platinum Metal
Portland Stone
Powder Green
Red Sandstone
River Stone
Sand Dune
Sandstone
Scotch Stone
Sea Mist
Smoke Grey
Travertine Stone
Tudor Rose
White Pearl
Wild Silk
Wild Straw
Willow Beach
Technical Details
| Coverage | Approx. 8 to 10m² per 25kg |
|---|---|
| Application Temperature | +5˚C to 25˚C for a minimum of 24 hours |
| Humidity Requirement | Less than 85% for a minimum of 24 hours |
| Ready to Finish | 10 to 40 minutes @ +5˚C to 25˚C |
| Dilution Rate | Max 2% |
| Unit Size | 25kg Bucket |
| Pallet Quantity | 30 |
| Certification | Certified by the British Board of Agrément (BBA) |