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Watco Tack Coat Sub Zero

A polyaspartic resin primer for use at low temperatures

  • Use inside or out with Concrex Epoxy Floor Repair Mortar
  • Helps with essential floor repairs during the winter months
  • Suitable for chiller room floors
  • Primer is ready for repair mortar in less than an hour

Frequently bought together


Watco Tack Coat is an epoxy resin adhesive primer for use before screeding with Watco Concrex® or before using Watco Concrex® Vertical. Watco Tack Coat Sub Zero is available for repairs during cold conditions.

Recommended areas of use

  • Suitable for internal or external applications
  • Can be applied over existing paint, but all poorly bonded paint must be removed and well bonded paint roughened to provide a key


  • Quick and easy to mix and apply
  • Watco Concrex® can be applied within 30 - 60 minutes
  • Watco Tack Coat Sub Zero cures in temperatures as low as -20°C
Properties An adhesive primer, used with Watco Concrex or before Watco Concrex Vertical grade, quick and easy to use.
Surfaces Floors, walls, ramps, steps.
Interior or Exterior Interior and exterior.
Coverage 3m².
Recommended number of coats 1
Pot time (hours) 20 minutes maximum at 20°C when decanted into a shallow tray. Higher temperatures will reduce the pot life.
Curing time Watco Tack Coat should be sufficiently tacky to overlay after approximately 60 minutes at 15-20°C, but this will be extended to 3 hours at 5°C.

Surface preparation

Concrete Ensure surface is clean and free of all loose material. Watco Tack Coat may be applied over existing paint but all poorly bonded paint must be removed and well bonded paint roughened to provide a key. Check that there is no ice in the substrate.

Metal Remove any loose or flaking material and rust by wire brushing or disc grinding. Oil or grease should be removed with Watco Bio D and the metal allowed to dry. Watco Tack Coat should be applied immediately after cleaning and drying.


Pour the contents of the smaller tin into the larger tin and mix thoroughly with a wide bladed tool. When using the 6m² pack decant into a shallow tray. Do not leave mixed components in the tin - the product will quickly become unusable and the tin become hot. Use immediately, the pot life of the mixed components is 20 minutes maximum at 20ºC, less at higher temperatures.


Apply sparingly by roller or brush and allow to become ‘tacky’. Overlaying must be completed while the Watco Tack Coat is still tacky. This product should be applied above 10ºC to ensure proper curing.

£26.80 (Ex VAT)

In stock

Tools and accessories

Paint Brush

Paint Brush

Professional paint brushes suitable for all coatings

From £2.20  (Ex VAT)

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