stitching cracks in brickwork
Masonry repair kits can be purchased from Screwfix or most good Builders Merchants.
These kits usually consist of
1.5-8mm rods for inserting into brick horizontal joints
2.2 bags of cementitious powder
3.A couple of sachets of liquid resin (looks like milk)
4.A small jointer-like tool to push the mixture into the joints.
5.A paddle to put into your drill, to mix the liquid and powder together.
6.A gun to put the mixture into to inject into the horizontal joints
Method:Rake joints out to a depth of about 50mm and clean and wet thoroughly.
Mix the powder and liquid together until a nice consistency has been reached.
Insert mixture into the gun. Test with a small amount so that you are sure that it will go through the nozzle of the gun without clogging or backing up. Place nozzle of gun into the joint and press trigger so that the mixture goes into the joint. Push deep into the joint with jointer supplied with the kit. Now push in one of the rods until it is bedded into the mix. Next,using the gun again,put more of the mix into the joint until it completely covers the rod. Now the joint can be pointed or jointed as necessary. This can be repeated on three joints per crack. Clear instructions come with the kit. The kit is around £170.
