How to fix holes in concrete

How to waterproof a shower

Concrete is a durable and versatile material but there are many factors that can lead to defects. Normal wear and tear can create dangerous situations and is unsightly. epidermix 318 can be used to repair concrete spalling, holes in concrete, and pitted concrete floors.

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What you'll need

  • 1 x trowel or spatula
  • 1 x wire brush or broom
  • 1 x sledge hammer
  • 1 x chisel
  • a.b.e.®Product: epidermix 318 – 200 ml, 500 ml, 1L two component containers.
  • a.b.e.®Product: abe® super brush cleaner – to clean tools.


  • Economical epoxy repair compound.
  • Easy-to-apply.
  • May be overcoated with an acrylic or epoxy paint.

Here's How: 3 Steps

Step 1

Surface preparation

  • Remove any debri using the wire brush or broom.
  • All surfaces must be clean, mechanically sound and dry.
  • For honeycomb areas or wider cracks use the chisel and hammer to chip the surface.
  • This will expose the main aggregate and in the case of honeycomb, all suspect material must be cut out.

Step 2


  • Set up equal volumes of Base and Activator side by side on a clean board.
  • Do not take more than about 250 ml of each compound.
  • Mix thoroughly with a trowel or spatula.
  • Mixing ratio – 1 base : 1 activator.

Step 3


  • Coverage recommended application thickness: 25 mm.
  • Mixed epidermix 318 should be pressed into place in the repair area using a small amount first to wet out the surface and then building up the required thickness.
  • The viscosity of epidermix 318 is sufficient to hold its place in soffit repairs and on vertical faces.
  • If the volume is too big to repair in one placing, leave the contact surface rough to act as a key for a subsequent placing once the first one has set.
  • A final smooth finish may be obtained by trowelling off the surface of the still uncured epidermix 318 with water dampened steel trowel.
  • Application by gloved hand or steel trowel.

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