Achieve a sleek, professional finish with Demsun N27 Building Neutral Silicone in Black. This high-performance, non-corrosive sealant is specifically designed for construction and glazing joints where a dark aesthetic is required. Odourless and highly flexible, it provides an airtight seal for PVCu, aluminium, and timber frames. Shop trade-standard Demsun N27 black hardware at ECO Heat Shop for durable DIY supplies and fast UK delivery.
£4.99 Incl. VAT
The Demsun N27 Building Neutral Silicone Black is a premium-grade sealant engineered for versatility and durability. Its deep black pigment makes it the ideal choice for contemporary anthracite or black window frames, roofing details, and automotive applications. At ECO Heat Shop, we provide the high-specification hardware and sealing solutions that professionals rely on for a weather-tight, aesthetically superior finish.
Demsun N27 stands out for its incredible primerless adhesion to a wide variety of surfaces, including powder-coated aluminium, PVCu, treated wood, and glass. Because it is a neutral-cure (oxime) silicone, it is virtually odourless, making it much more comfortable to use in confined spaces compared to traditional “vinegar-smelling” acetoxy silicones. Whether you are sealing a modern glass extension or performing maintenance on industrial roofing, N27 Black delivers a clean, professional result every time.
ECO Heat Shop Tip: For a perfectly straight finish against black frames, use masking tape along the edges before applying the N27 silicone. Remove the tape immediately after smoothing the joint with a finishing tool. Properly sealing external joints is a sustainable way to prevent draughts and moisture ingress, protecting the structural integrity of your home for the long term.
Superior protection in a modern finish. Order Demsun N27 Building Neutral Silicone Black online today for professional-grade construction hardware delivered across the UK.
| Weight | 0.44 kg |
|---|---|
| Dimensions | 30 × 4 × 4 mm |
ECO Heat Shop Ltd provides national distribution for plumbing and heating supplies across England, Scotland, and Wales. Orders placed before the 18:00 PM (Afternoon) cutoff are typically processed for same-day dispatch.
View Full Shipping & Collection Policy ›Hours: Monday – Saturday: 08:30 AM – 06:30 PM | Sunday: Closed
Location: Unit 8 West Cross Shopping Centre, Oldbury Rd, Smethwick, B66 1JG
In-shop precision key cutting available during standard operational hours. Professional while-you-wait service for Smethwick residents and trade contractors.
Smart supplies for real heat.
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