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Watco Resiflow Chemical Grade

A chemically resistant thick supergloss for production areas, clean rooms & plant areas

  • 1-2mm thick high gloss epoxy resin
  • Resistant to a wide range of chemical spills
  • Takes heavy forklift traffic
  • Easy clean surface
Frequently bought together


Watco has developed a highly advanced formulation that puts Resiflow Supergloss into a class of its own. This one coat, high build, self-levelling epoxy resin finish, leaves a smooth, exceptionally high gloss surface, which is both attractive and easy to keep clean. This high performance formulation is usually applied at 1-2mm thick, but can be applied up to 5mm in one application. It is our ultimate floor covering for durability and appearance.

Resiflow Supergloss has very good general chemical resistance, but this has been enhanced to ‘Excellent’ for Resiflow Chemical Grade. If slip resistance, as well as excellent chemical resistance is important, apply one coat of Watco Protecta-Coat Anti Slip (62 PTV), a clear, glossy, polyaspartic resin, over the top.

Both grades now carry CE Mark EN1504-2 and have impressive test results for hardness, abrasion, scratch and impact resistance, as well as for adhesion and flexibility, and they have an A+ VOC emissions rating with a low level of VOC.

Recommended areas of use

  • Production areas
  • Showrooms
  • Reception areas
  • Clean rooms
  • Workshops
  • Chemical storage areas
  • Warehouses
  • Switchgear and plant rooms
  • Food & pharmaceutical – processing, storage and laboratory areas


  • Our top of the range high gloss, high performance, high build epoxy resin self-levelling floor finish
  • Superior wear and abrasion resistance with just one 1-2mm thick application
  • Can be applied up to 5mm thick if required
  • Extremely easy to keep clean
  • Excellent resistance to oils and general chemical spillages
  • Resiflow Chemical Grade has exceptional resistance to aggressive chemicals
  • Perfect for floors where high levels of hygiene are important
  • Low odour – safe to use in confined spaces
  • Superior performance demonstrated by ISO testing to CE Mark EN1504-2
Curing TimesRecoat Time (if required)Touch DryLight TrafficHeavy TrafficFull Chemical Resistance
10°C16 hours12 hours24 hours48 hours 7 days
20°C16 hours8 hours16 hours48 hours7 days 
30°C16 hours6 hour16 hours27 hours7 days
Light Traffic: Foot, trolley, pallet truck, occasional forklift
Heavy Traffic: Regular forklift, heavy footfall, parked vehicles


Suitable for Concrete, well bonded paint, some metals
Finish Glossy, smooth
Interior or Exterior Interior
Primer required Yes. See section 'Priming' details on 'How to Apply’
Composition 2 part, 100% solids epoxy resin
Number of components 1 x curing agent, 1 x resin and 1 x fine powder blend
Coverage 5-10m² per 20kg
Number of coats 1
Recommended number of coats 1
Mix ratio 23 parts curing agent : 100 parts resin : 105 parts aggregate
Wet film thickness 1.5mm
Dry film thickness 1.5mm
Curing time (at 20°C) 16 hours
Minimum application temperature 15°C
Pot life 25 minutes at 20°C
Shelf life 12 months in unopened container
Cleaning tools It is not practical to clean applicators and they should be discarded after use


Surface preparation

Bare concrete – remove surface laitance, dust and any light dirt or grease deposits using Watco Etch & Clean. Watco Etch & Clean also etches smooth, bare concrete surfaces to provide a key. Flush with clean water and allow the surface to dry. For the removal of heavier deposits of oil and grease we recommend Watco Concroff, again, flush with clean water and allow the surface to dry.

New concrete – as a guide, new concrete should be left for eight weeks to dry; (if the application has to go ahead before this, use Watco New Concrete Primer). The surface should then be prepared using Watco Etch & Clean and thoroughly rinsed away and left to dry prior to applying this coating.

Painted surfaces – abrade to remove any weak or loose paint. Check remaining paint is well bonded. Very smooth, glossy paint should be lightly abraded to provide a key. Watco Bio D can be used to remove grease and oil from painted surfaces. Watco Concroff is a very powerful degreaser for contaminated bare concrete, (do not use on a previously painted surface since it can soften paint).

Repairs – Chips and small holes in concrete which may reflect through Resiflow can be quickly repaired using Watco Concrex Fine Filler. Watco Concrex can be used for isolated bigger holes and damage. If the concrete has a generally rough surface, it would be more economical to first resurface it with Watco Flowtop rather than trying to achieve a smooth surface with layers of Resiflow.

Priming – use Watco 4 Hour Epoxy Primer on open textured, or very porous high suction surfaces, such as sand and cement screed. This provides a uniform finish and prevents air entrapment bubbles. Very smooth or power floated concrete should be primed with Watco Powerfloat Primer.

Metal – remove any rust and flaking material by disc grinding or wire brushing. Apply Resiflow immediately after preparation to the clean metal surface. Grease or oil can be removed using Watco Bio-D. Allow the metal to dry before coating.

Galvanised Metal – Watco Galvaprime must be used to prepare galvanised metal.

Non-ferrous Metals – for advice, please contact our Technical Department.


Remove all three components from the outer bucket. Stir the contents of the coloured resin tin thoroughly, and then do the same for the clear curing agent, (scrape around the inside of the tins to remove any residue). Pour the resin into the outer bucket, and using a mixing blade fitted to a slow speed electric drill, (do not use a high speed drill as this will pull too much air into the mix and encourage air bubbles to form), start to mix while slowly adding the curing agent. When thoroughly mixed add the fine powder blend, mixing for 2-3 minutes until uniform in colour and consistency, ensuring that all material at the sides and base are thoroughly blended together. It is possible to hand mix small quantities but great care must be taken. The mixed components must be used immediately. To assist with mixing and application, we recommend 1 person to mix continuously, whilst the other gradually adds the powder blend. Important - once the contents of the pack have been mixed, a chemical reaction takes place which creates heat. The product should therefore be used straight away.


To watch our online video, please go to Best results are obtained in warm (minimum of 15°C), dry conditions with good ventilation. Application on cold surfaces can reduce the product’s ability to flow. Working in sections of approximately 5m², pour the mixed components onto the prepared surface in ribbons and spread evenly to the desired depth of 1-2mm using a Watco Foam Rubber Squeegee, or similar notched trowel. The applicator has a built in depth guide which makes it easier to achieve the required thickness. The product will naturally self-level. Use a spiked roller to remove air bubbles and repeat a few minutes later and thereafter if air bubbles continue to form. Application within the 5m section needs to be completed within 15-20 minutes maximum. Do not spike roller for longer than 20 minutes or track marks will be left on the surface. Spike rollering should extend into the previously applied section, but ensure that this has not hardened to such a degree that spiked rollering is not possible. If a knife cut in the wet surface heals quickly, the surface is still safe to roller. Spiked shoes, should be worn if you need to walk across the wet floor. Do not wash or allow water to lie on the surface for at least 7 days.

Test results

Test results

Extensive testing is what makes us the most highly qualified paint and repair manufacturer on the market. Our tests cover just about everything you might want to know about a floor coating – how well it bonds to the floor, how durable it is, how well it stands up to scratching and much more. 

Our key tests for Resfilow:

  • Gloss Value: 100 - Measured on an Optical Glossmeter, +85% is high Gloss.
  • Chemical resistance: Very Good chemical resistance against the most common chemicals.  Resiflow Chemical Grade improves this result to Excellent resistance against aggressive chemicals.
  • Adhesion test: using the Cross-Cut test method, Resiflow is class 1. (class 0 is the highest, class 5 is lowest)
  • Wolff Wilborn Hardness Test: Resiflow is rated 9H (the hardest)

Learn more about the tests we carry out and how to read the results here
Full test results can be found on the Technical Data Sheet



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€255.30 (Ex VAT)

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Watco Resiflow Chemical Grade