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Watco Concrex Rapid Set - Epoxy Repair Mortar

Ultra-strong epoxy repair formula ready in 3 hours

  • Virtually indestructible
  • Impervious and non-dusting
  • Mix and apply in minutes
  • So strong it can be feather-edged

Frequently bought together

Total price

£137.80 (Ex VAT)

This item: Concrex Rapid Set Grey 10KG £99.00 (Ex VAT)


Concrex® Rapid Set has the same features as the traditional Concrex® with the added benefit of fast curing.


  • Easy to apply. Concrex Rapid Set takes heavy traffic after just 3 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, ready for heavy traffic in 3 hours.
Suitable for Concrete, metal, brick, masonry
Finish Smooth, impervious surface.
Interior or Exterior Interior and exterior
Primer required Yes, Watco Tack Coat is recommended.
Composition 2 part epoxy resin
Coverage 1.2m² at 5mm thick per 10kg
Curing time 2-3 hours at 20°C
Minimum application temperature 10°C
Pot life 30 minutes.

Surface preparation

Surfaces to be treated must be clean, dry and free of friable material, wire brushing or a sweeping 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.


£99.00 (Ex VAT)

In stock

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Tools and accessories

Watco Concrex Application Kit

Watco Concrex Application Kit

Everything you need for applying Concrex

From £15.20  (Ex VAT)

Watco Tack Coat

Watco Tack Coat

High strength 100% solids epoxy resin adhesive primer

From £23.60  (Ex VAT)

Trowels and Floats

Trowels and Floats

Ideal for mixing, applying and levelling repairs

From £3.40  (Ex VAT)

Wire Brush & Scraper

Wire Brush & Scraper

A useful tool for removing rust and old coatings

£2.60  (Ex VAT)

Concrex Mixing Tub

Concrex Mixing Tub

Ideal for mixing Watco Concrex

£10.70  (Ex VAT)

What our customers say

Help & Advice

Contact our friendly and professional Technical Advisors for expert help and advice for your project. You can give us a call on 01483 418 418 or email

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