British Gypsum Glasroc X Sealant - 600ml
British Gypsum Glasroc X Sealant - 600ml
- Product Code: A1-7258
- Delivery Time: 3 - 5 days
- Brand: British Gypsum (Tech. support: 01159456123)
- Model: 600ml
- Weight: 0.61kg
Our ratings on 06-10-2026:

4.8 out of 5
British Gypsum Glasroc X Sealant - 600ml
Weight: 0.61kg
Fire Rating (Reaction to Fire): E
Colour: White
Volume: 600 milli litre
600ml British Gypsum Glasroc X Sealant is a BBA‑certified, silicone‑based façade sealant designed for use with Glasroc X Sheathing Board. It provides a durable, weather‑resistant seal that protects exposed façade linings for up to six months during the construction phase, before the permanent external cladding is installed. The sealant forms a flexible, watertight and airtight barrier that prevents water ingress into steel‑framed external wall systems, helping maintain the integrity and performance of the sheathing board while the building envelope is incomplete.
CHARACTERISTICS
- Protects exposed sheathing for up to six months, maintaining weather resistance during construction.
- Silicone‑based formulation offering strong adhesion and long‑term flexibility.
- BBA certified, ensuring independently verified performance.
- Creates a watertight barrier that keeps moisture out of steel‑framed buildings before cladding is installed.
- Suitable for perimeter sealing of Glasroc X Sheathing Boards and other façade interfaces.
- Easy to apply, with a smooth finish suitable for construction‑phase protection.
APPLICATION
- Perimeter sealing of Glasroc X Sheathing Board in external wall systems.
- Temporary weather protection for SFS infill walls before cladding installation.
- Sealing joints, edges and penetrations in façade build‑ups using Glasroc X.
- Use in external enclosure detailing where airtightness and moisture protection are required.
CERTIFICATION

BBA Certificate No. 17/5453
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