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Watco Concrex Cold Set - Epoxy Repair Mortar

Long lasting formula for repairs in cold conditions

  • Cures at 0°C
  • Virtually indestructible
  • Impervious and non-dusting
  • So strong it can be feather-edged
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Total price

€338.50 (Ex VAT)

This item: Concrex Cold Set 25KG €229.80 (Ex VAT)


Concrex® Cold Set has the same features as the traditional Concrex® with the added benefit of the ability to cure in low temperatures. Ideal for winter use and cold room conditions.

Recommended areas of use

  • Suitable for use inside and out
  • Concrete, sand and cement, metal
  • Holes in concrete floors
  • Damaged steps
  • Broken floor joints
  • Eroded, uneven concrete


  • Easy to apply. Takes heavy traffic after 12-16 hours at 20°C
  • Coverage 1.2m² per 10kg at 5mm thick
  • Virtually indestructible, 8 times stronger than concrete. Full strength achieved at 5mm thickness
  • Minimal prep time saves labour costs; mix and apply in minutes
  • Watco Tack Coat Primer is essential for shallow applications and screeding
Properties Incredibly tough, granite–hard finish, chemical–resistant, anti–slip, priming not normally required, impervious and non-dusting, may be feather-edged, cures in 6–8 hours at ambient temperatures.
Suitable for Concrete, sand & cement and metal.
Appearance Smooth, impervious surface.
Finish Smooth, impervious surface
Surfaces Floors, ramps, steps.
Interior or Exterior Interior and exterior
Primer required Yes, Watco Tack Coat is recommended.
Composition Finely graded sand pre-blended with resin. A 10kg contains 4 small bottles of curing agent, a 25kg includes 2 large bottles of coloured curing agent.
Coverage 10kg: 1.2m² at 5mm thick per 10kg. 25kg: 3m² at 5mm thick
Pot time (hours) Up to 30 minutes.
Application tools Steel float or trowel.
Curing time 24-48 hours at 0°C
Minimum application temperature 0°C
Storage Between 10°C - 30°C. Do not allow to freeze.
Shelf life 12 months in unopened container.
Cleaning tools Use white spirit before product starts to cure.

Surface preparation

Surfaces to be treated must be clean, dry and free of friable material, a wire brush or sweep is usually sufficient. Watco Bio-D degreaser can be used if there are spots of oil or grease.


Each bucket contains Concrex powder and bottles of hardener. Mix the two components with a trowel until you achieve a uniform grey colour, you can complete the mixing by using your gloved hands. For large quantities, it is advisable to use a mixer.


Apply the repair mortar to the surface to be repaired and smooth with a trowel. To prevent streaks, wipe the blade with a rag soaked in white spirit.


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€229.80 (Ex VAT)

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Specialist alternatives

Applying in cold conditions?

Complete your maintenance projects all year round

Our chemists have developed cold curing products with the latest resin technology so you can continue with your repair projects all year round.

All cold cure

Watco Concrex Sub Zero


For essential repairs during the winter months

€137.40 (Ex VAT)

Tools and accessories

Watco Concrex Application Kit

Watco Concrex Application Kit

Everything you need for applying Concrex

From €17.50  (Ex VAT)

Watco Tack Coat

Watco Tack Coat

High strength 100% solids epoxy resin adhesive primer

From €27.30  (Ex VAT)

Trowels and Floats

Trowels and Floats

Ideal for mixing, applying and levelling repairs

From €3.90  (Ex VAT)

Wire Brush & Scraper

Wire Brush & Scraper

A useful tool for removing rust and old coatings

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Concrex Mixing Tub

Concrex Mixing Tub

A large mixing tub ideal for mixing Watco Concrex

€12.40  (Ex VAT)

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