Cut the nozzle to the width of the crack and apply a bead of the mixture into the crack.
Patching concrete rendered wall.
Allow this to dry for several hours.
Render joint and patch has superior workability and it s texture will provide a seamless result when used for patching existing render.
Avoid feathering out too thin.
Once dry run your hand over the finish and feel for an abrasive or.
Filling cracks in render.
Cracks that form in a concrete wall particularly a basement wall due to settlement frost heave or ground movement can be either structural or non structural.
Using a sponge lightly rub the render to achieve the desired effect and to blend with the existing material.
Small patch repair of up to 0 5m will cost around 75.
However for cracks wider than inch quick setting cement based fillers are advisable to use.
Repairing cracks in a concrete wall is a simple procedure that can usually be completed within a day or so.
The methods discussed in this article can be used to repair minor non.
Dunlop render joint and patch is a two in one formulation suitable for jointing fibre cement sheet or blueboard prior to rendering as well as patching cracks and holes of existing render to a depth or width of up to 5mm.
Excellent workability with a render texture finish.
Ready mixed easy to apply.
Apply a coat of sealer to the concrete rendered wall if the render is made of acrylic.
Remove the masking tape and any excess material and allow to dry.
Apply the render using the filling knife to the required depth max.
Hacking off old render raking out the joints cleaning down the wall and then applying a new 22mm cement lime sand render in two coats to a masonry wall will cost in the region of 68 m.