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Watco Chemi-Coat Rapid

Fast curing high build coating with great chemical resistance

  • Only one coat required
  • Light traffic in only 4-5 hours
  • High resistance to aggressive chemicals
  • Takes heavy traffic

Frequently bought together

Total price

£237.90 (Ex VAT)

This item: Chemi-Coat Rapid LIGHT GREY, 4L £176.90 (Ex VAT)


Watco Chemi-Coat® Rapid is a high build, tough floor coating which hardens rapidly and has good resistance to spillages of a wide range of chemicals. 


  • Easy to mix two part epoxy resin formula
  • Cures rapidly to form a high build (250–300 micron thick) glossy coating
  • Hard wearing surface ideal for heavy use areas
  • Only one coat usually required (although rapid curing allows 2 coats to be applied in one day)
  • Virtually solvent free formula which can be used over most existing paints and coatings
  • Will accept light traffic after 4 – 5 hours and normal traffic after 12 hours (at 20°C)
  • Approved for use on concrete with under floor heating systems (up to 30°C surface temperature)
Properties Excellent resistance to many chemicals, low solvent content, high build epoxy resin, excellent durability.
Appearance Gloss.
Surfaces Floors.
Interior or Exterior Interior.
Primer required Yes on very porous surfaces.
Coverage 18m² per 4L pack maximum allowing for one coat by roller. Brush application may result in reduced coverage.
Recommended number of coats 1
Pot time (hours) 1 hour at 15°C.
Curing time 4-5 hours for light traffic, 12 hours for normal traffic at 20°C.
Minimum application temperature 15°C.

Surface preparation

Concrete and Brick - concrete to be treated must be dry, at least four weeks old and free of any soft surface laitance, contaminants, and not subject to rising damp. All loose material should be removed. Very smooth bare concrete or concrete with soft surface laitance should be etched with Watco Etch & Clean and the area thoroughly hosed off and allowed to dry. Grease or oil should be removed with Watco Bio D (or a similar degreasant) and the area thoroughly hosed off and allowed to dry. Very smooth previously painted surfaces should preferably be abraded to improve adhesion.

Steel - remove loose or flaking material, rust and any previous coatings by wire brushing or disc grinding to achieve a bright surface. Oil or grease should be removed with Watco Bio D and the metal then washed with water and allowed to dry. Coating should be carried out immediately providing flash rusting has not occurred.


Each Chemi-Coat pack consists of a container of curing agent and a container of resin. The curing agent and resin must be very thoroughly mixed together with a wide bladed tool until an even colour is obtained. 

Important: Once the contents of the pack have been mixed a chemical reaction takes place which causes a rise in temperature and speeds up the curing of the product.


If appearance is critical we recommend the application of a small trial area first.

Best results are obtained in warm conditions, (minimum 15°C). On horizontal surfaces apply with a medium pile type roller (not foam) in one coat. On vertical surfaces two thin coats are recommended. The second coat should be applied within 24 hours.

£176.90 (Ex VAT)

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