Setting Joint Filler

Powdered setting joint filler | Ideal for bedding tape and base coats | Strong and durable bond | Consistent setting time | Minimal shrinkage | Suitable for hand or machine use | Designed for first‑stage jointing | 12.5kg bag

British Gypsum Gyproc Joint Filler is a gypsum‑based setting material designed for bulk and secondary filling of plasterboard joints. Traditionally used in stages 1 and 2 of the three‑stage jointing process, it provides a strong, reliable base for subsequent finishing coats.Developed for hand application, Gyproc Joint Filler offers a practical 90‑minute working time, making it ideal for quick turnaround jobs and efficient site workflows. The low‑shrinkage formulation helps reduce the risk of cracking and contributes to a smooth, consistent finish across joints.Easy to prepare, the product simply requires the addition of water, ensuring reliable mixing and ease of use on site. Suitable for residential and commercial plasterboard installations, it delivers dependable performance and consistent results. Gyproc Joint Filler complies with EN 13963 type 1B, meeting recognised industry standards for quality and performance.