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Watco Concrex Coving Mortar

Specially formulated to make cove skirting easy

  • Strong enough to feather-edge
  • Virtually indrestructable
  • Impervious and non dusting
  • Permanent, easy clean feature
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A coved skirting helps cleaning by eliminating the dirt trap at the junction of the floor and the wall. Watco Concrex® Coving Mortar is specially formulated to make it easier to create coved skirting. Based on the technology of Watco Concrex®, this mortar is incredibly tough, chemical and impact resistant, even when applied with feather edges. Designed to be used in conjunction with Watco Tack Coat

Recommended areas of use

  • Ideal for hygienic environments such as hospitals, food halls and bunds

Features of Concrex Coving Mortar

  • Tough two pack epoxy resin formula
  • Can be feather edged
  • Impervious, non-dusting, impact and chemical resistant
  • Fast curing
  • Cures in 3 to 6 hours at 15-20°c
  • Watco Tack Coat is recommended for all applications
Pendulum Slip Test Values
70 Extremely low slip potential 62 Low slip potential 
Properties Can be feather-edged, impervious, non-dusting, impact and chemical resistant, fast curing, can be painted.
Suitable for Concrete, metal, brick, masonry
Interior or Exterior Interior and exterior
Primer required Yes.
Composition 2 part epoxy resin
Coverage 5m of 50mm x 50mm of cove skirting per 5kg
Curing time 1 hour at 20°C
Minimum application temperature 10°C
Maximum operational temperature 60°C.
Pot life Up to 30 minutes.

Surface preparation (When used with Watco Tack Coat)

Ensure surfaces are clean, dry and free from loose material. Wire brushing and sweeping should suffice, Watco Bio D can be used to remove grease and oil. Prepare at least 100mm at the base of the wall and 100mm at the floor edge to accommodate the skirting.


Watco Tack Coat should be applied at least 80mm up the base of the wall from the edge of the floor, where the cove skirting is to be applied. The coving mortar should be applied to the Tack Coat whilst it is still tacky.


A 5kg pack contains aggregate pre-blended with resin and a tin of curing agent. It is recommended that the whole pack is mixed at once (please note that once mixed, the product is usable for up to one hour). Do not mix the product inside the bucket. Put on protective gloves. Tip the aggregate into a mixing tray or a board. Shake the tin of curing agent thoroughly. Form the aggregate into a mound, leaving a small hole in the middle.

Empty the tin of curing agent into the hole, ensuring the contents are completely drained. Carefully mix the aggregate with the curing agent using a trowel until a smooth, grey mortar is obtained. The more thorough the mixing, the ‘wetter’, smoother and more manageable the mix becomes. Alternatively, you may find it easier to knead the mixture by hand, still wearing gloves. It is important to mix thoroughly, until you achieve a consistent grey colour.


Trowel the mortar firmly over the Tack Coat. Use the Watco Coving Trowel to achieve the cove radius. Moisten a rag with white spirit and frequently wipe the blade. This helps to achieve a good finish. The product can be feather edged, at the top and base of the coved skirting. If laying over an expansion joint, saw cut through the cured mortar, following the joint, to prevent random cracking.

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£70.40 (Ex VAT)

In stock

Bulk discounts save up to 20%
Quantity Price per item Discount
1+ £70.40 -
6+ £63.40 Save 10%
18+ £56.30 Save 20%
Bulk discounts applied in basket

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