TROWEL MASTIC SAND STONE - 25KG

A traditional linseed oil-based pointing mastic designed for sealing around timber window and door frames. Used by tradespeople for over 200 years, this easy-to-apply compound provides a flexible, weather-resistant seal that gradually hardens over time while maintaining durability and long-term performance. Ideal for traditional building repairs, restoration projects, and new joinery installations. Features: Traditional pointing mastic used for over 200 years Ideal for sealing around timber window and door frames Flexible and easy to apply with a trowel Gradually hardens to provide a durable weather-resistant seal Suitable for restoration, maintenance, and new build projects Helps protect against draughts and water ingress Ideal for professional and domestic applications Coverage: 1kg covers approximately 12.5 metres of a 9mm joint Mixing Instructions: Mix one 25kg bag of mastic with 2.5 litres of double boiled linseed oil Suitable for: Timber windows, door frames, heritage properties, traditional building restoration, renovation projects, and general pointing applications.