Your browser version is not officially supported, and you may experience a degraded service. Please upgrade your browser.

Take advantage of the Christmas shutdown: 15% off and free delivery sitewide. Code: XMAS22

Watco Concrex Colours Cold Set - Epoxy Repair Mortar

Coloured epoxy resin mortar for repairing holes in the cold

  • Virtually indestructible
  • Blends with existing coloured floors
  • Cures at 0°C
  • So strong it can be feather-edged
Sign in or register for volume discounts

Frequently bought together

Total price

€338.50 (Ex VAT)

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


Concrex® Colours Cold Set has the same features as the traditional Concrex® with the added benefit the ability to cure in low temperatures and a variety of colours to choose from. Ideal for winter use and cold room conditions. Compared with other repair mortars this formulation is particularly rich in epoxy resin. This provides superior strength and adhesion, making it ideal for very thin section, feather edge or intricate repairs.

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, cold curing, 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. 10kg contains 1 tin of coloured curing agent, and a 25kg includes 2 tins of coloured curing agent.
Coverage 10kg: 1.2m² at 5mm thick. 25kg: 3m² at 5mm thick.
Pot time (hours) Up to 30 minutes.
Application tools Steel float or trowel.
Curing time 24 hours for light traffic, 48 hours for heavy traffic at 0°C. 6 hours for light traffic, 8 hours for heavy traffic at 10°C.
Minimum application temperature 0°C
Maximum application temperature Watco Concrex colours should not be subjected to temperatures above 60°C
Storage Between 10°C - 30°C. Do not allow to freeze.
Shelf life 12 months in unopened container.
Depth (mm) Up to 50mm for hole filling only. Do not use at more than 15mm for screeding. Instead use Watco Concrex Deep Fill finishing with a 5mm layer of Concrex Colours.
Principle limitations Do not apply to wet surfaces.Do not apply thicker than 50mm in one layer.
Cleaning tools Use white spirit before concrex colours cures.

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.

Ask a question

Be the first to ask a question...

Ask a question
0 questions / 0 answers

€229.80 (Ex VAT)

Low stock

Do you know the volume of the area?
Sign in or register for volume discounts

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

€3.00  (Ex VAT)

Concrex Mixing Tub

Concrex Mixing Tub

A large mixing tub ideal for mixing Watco Concrex

€12.40  (Ex VAT)

What our customers say