Jablite Claymaster Board Henham Gravel Ibstock Ivanhoe Westminster is a

Ibstock Ivanhoe Westminster is a sandfaced

Versatile aesthetic suitable for feature pieces

You should use breathing and eye protection when cutting or sanding

Pre-mixed gypsum undercoat plaster

The Welsh Slate will give any garden a more traditional look

Jablite Claymaster Board Henham Gravel Ibstock Ivanhoe Westminster is aWhen Is Claymaster Required? When you live in a clay soil area, some unique challenges present themselves during construction projects. In particular, the pressure exerted by concrete on those clay soil can create a process known as clay heave during the life of the building. The solution is to use a clay heave board and one of the best known is Claymaster. Lets look at what it is, how it works and how you install the products. What is Claymaster?