Shieldcoat Slab Repair 4L in Sydney

Slab Repair is Shieldcoat’s flexible acrylic crack filler for concrete, the repair that goes in before spray resin, Step Safe or Concreshield. It’s a natural concrete colour, trowels smooth and feathers into the slab, and we stock the 4L tub in Wetherill Park.

Which cracks, and how

Go by the width of the crack, and make sure it’s dry first:

Crack width	What to use
About 1mm	Step Safe Heavy Duty, brushed in with a small brush
2 to 5mm	Slab Repair
5 to 10mm	Slab Repair in two layers, 1 to 4 hours apart
Over 10mm	Cement based repair for the bulk, then a 2 to 5mm layer of Slab Repair

A flexible putty knife pushes it in and feathers it flush.

Why flexible matters

Rigid fillers are bound to fail. Concrete moves, and they crack again with it. Slab Repair moves too, so the repair lasts as long as the coating you put over it. Once it’s in, prime with Primer X and carry on with Step Safe Heavy Duty.