Our Product is applied to an Office Wall. A grey pigment is added to the mix with black jointing. Simply Beautiful Limestone Blocks - Our product can be applied to bare brick, blue board cement sheeting concrete tilt panel surfaces such as piers, portico's, feature walls, fireplaces, alfresco areas etc. Stone Effects is a strong and long lasting render which is applied with a trowel then carved to create the Stone Effect of Limestone Blocks. As it is all hand carved, blocks can be of varies sizes according to your requirements. Custom made to create a classic elegant finish.