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Epoxy Repair Mortar for permanent concrete repairs

Watco Concrex Epoxy Repair Mortar

Watco Concrex Epoxy Repair Mortar

(EXCL. VAT) £80.80 From (INCL. VAT) £96.96

Our original, best-selling floor repair mortar: fast, permanent and strong. Industrial strength and reliability are guaranteed with minimal prep time from one of our most popular products for damaged, cracked or dangerous concrete floors.

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(EXCL. VAT) £80.80 From (INCL. VAT) £96.96
Product Details

Repair concrete with Watco Concrex®. It now contains epoxy novolac resin for an even tougher concrete epoxy resin mortar ideal for repairing eroded industrial flooring or damaged concrete, bay edges and broken steps. Repairs made with Watco Concrex® are virtually indestructible as its wear resistance and adhesion are unrivalled!

Epoxy novolac resins generally contain more epoxy groups per molecule compared to standard epoxy resins. This means our concrete epoxy repair mortar achieves stronger chemical bonding during the chemical process, which results in excellent temperature, chemical and solvent resistance.

Watco Concrex® concrete repairs can range from feather edge to 50mm depth. Apply with steel float or trowel.

When Concrex is being applied over a large area, being applied thinly at 10mm or less, or being used as a screed, Watco Tack Coat should be used as a primer

  • Suitable for use inside and out
  • Cures to a granite-hard finish
  • Provides excellent chemical resistance and anti slip properties
  • Priming is not normally required
  • Impervious and non-dusting
  • May be feather-edged
  • Cures in 3-6 hours at ambient temperatures, ready for heavy traffic in 8-12 hours
  • Available in 10kg and 25kg packs
  • Coverage approx. 1.2m² per 10kg at 5mm thick


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Technical Data Sheet
GHS Safety Data Sheet

Application Video

Delivery Time (Days) 1-3
Primer Required no
Product Video
Usage - Interior / Exterior interior or exterior
Usage - Properties incredibly tough, granite–hard finish, chemical–resistant, anti–slip, priming not normally required, impervious and non-dusting, may be feather-edged, cures in 3–6 hours at ambient temperatures, ready for heavy traffic in 8–12 hours
Usage - Surfaces floor, ramps, steps
Max Operational Temp (deg C) 60
Coverage (m² per litre/kg) 0.12 per kg at 5mm thick
Application - Curing Time (hours) 3 to 6
Application - Pot Time (hours) 0.5
How To Apply
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.

Case Studies
Request a Quote/Sample

Home Delivery

Watco offer a range of delivery options to ensure you receive your order when you need it.

Choose standard, next day or Saturday morning delivery:


Delivery Charges
Standard delivery for orders over £751 Free
Standard delivery for order values up to £750 £6.25 - £26.00 depending on order value
Next day delivery £13.75 - £33.50 depending on order value


For details of delivery costs for express or fixed time deliveries please go through the checkout or call us on 01483 418 418.

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Watco UK Ltd, Watco House, Filmer Grove, Godalming, Surrey GU7 3AL

Company Registered in England – Number 459144. VAT number 413208691. Registered office: Hays Galleria, 1 Hays Lane, London, SE1 2RD