Ceresit CT 76 Solar Protect Render 25kg – Nano-Technology Hydrophobic Finish

Product Overview

Professional-grade ceresit ct76 solar protect render 25kg UK is an advanced silicone-elastomeric decorative finish engineered for high-exposure facades. Utilizing patented Solar Protect technology, this nano-technology hydrophobic render UK significantly reduces surface temperature by reflecting solar energy, making it the definitive choice for dark, contemporary colours that would otherwise be prone to thermal cracking. Formulated with high-grade siloxane resins and the integrated BioProtect system, CT 76 provides a self-cleaning, "stay-clean" surface that actively resists environmental pollution and biological growth. This 1.5mm stone-textured finish ensures maximum facade longevity and structural stability in the variable UK climate, particularly within certified Ceresit ETICS insulation systems.

Key Benefits

• Solar Protect Technology: Lowers surface temperature and thermal stress, allowing for the safe use of dark and intense facade colours.
• Nano-Technology Hydrophobicity: Creates a tight, water-repellent structure where dirt particles are naturally washed away by rainwater.
• Extreme Bio-Protection: Integrated biocidal agents provide a long-term barrier against algae, mould, and fungi colonisation.
• High UV Stability: Advanced pigments and binders ensure that vibrant tones remain fade-resistant for decades.
• High Vapour Permeability: Classified as V1 (High), allowing the building fabric to breathe and preventing internal moisture build-up.
• Impact & Crack Resistance: Enhanced elasticity compensates for structural movements and extreme temperature fluctuations.

Technical Specifications

Property	Value / Standard
Base Material	Silicone and Elastomeric resins with mineral fillers
Density	Approx. 1.7 kg/dm³
Grain Size	1.5 mm (Stone texture)
Vapour Permeability	V1 (High) per EN 15824
Water Absorption	W3 (Low) per EN 15824
Solar Reflectance	Enhanced (Solar Protect Technology)
Average Coverage	2.5 kg/m² (~10m² per 25kg tub)
Standard Compliance	EN 15824 / BBA Certified Systems

Application & Compatibility

• Facade Systems: Highly recommended for ETICS systems using graphite EPS or mineral wool insulation.
• Dark Colours: The primary choice for any project specifying a Total Solar Reflectance (TSR) value below 25%.
• Substrates: Compatible with concrete, traditional plasters, and gypsum substrates when correctly prepared.
• Required Priming: Must be applied over a cured layer of Ceresit CT 16 quartz primer to ensure chemical bonding and suction control.
• Limitations: Do not apply to horizontal surfaces or areas with permanent moisture contact.

Installation Notes

Substrates must be clean, dry, and primed at least 24 hours prior to rendering. Ceresit CT 76 should be mixed thoroughly with a low-speed stirrer. To prevent visible join lines, elevations must be completed in a single "wet-on-wet" operation, requiring sufficient site labour to maintain a continuous edge. Avoid application during direct intense sunlight or high winds, as this can accelerate drying and affect the Solar Protect film formation. In the UK, protect the fresh render from rain for at least 24 hours. For machine application, ensure the rendering unit is calibrated for a 1.5mm grain size to achieve a uniform finish.

Is This Product Right for Your Project?

• Choose this product if: You are specifying a dark or intense colour (e.g. Anthracite) for your facade and require maximum protection against solar-induced cracking and algae growth.
• Consider alternatives if: You are working on a standard white or light-coloured residential project on a budget; in these cases, our standard silicone renders may be more cost-effective.

Frequently Asked Questions

Can I use CT 76 for dark grey or black facades?

Yes. CT 76 is specifically engineered for this purpose. Its Solar Protect technology reflects infrared radiation, keeping dark facades significantly cooler than standard renders, which prevents thermal expansion and cracking.

Does it really clean itself?

While no render is 100% maintenance-free, the nano-structure of CT 76 is highly hydrophobic. Water beads and rolls off the surface, taking most atmospheric dust and dirt with it.

How many tubs do I need for a 100m² area?

At a standard application rate of 2.5kg per m², you will require 10 tubs of 25kg. We recommend ordering 11 tubs to allow for detailing, reveals, and site waste.

To ensure a professional, BBA-compliant finish, source your silicone render primers and reinforcement components directly from Renders World.