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Hazard Marking Paint

Cost effective solution for highlighting floors, steps and kerbs

  • Bright yellow – highly visible
  • From £1.32 per m²
  • 5L covers approx. 40m²
  • Improves safety indoors and out
  • Easy to apply – one coat is usually enough
  • Can be applied to almost any surface

Frequently bought together


Watco Basics Hazard Marking Paint is based on a tough, solvent based polyurethane formula which can be applied to most surfaces. A separate unit of aggregate is supplied with Anti Slip Hazard Marking Paint, which is mixed into the paint to provide a finely textured slip resistant surface.  

Recommended areas of use

  • Ideal for interior and exterior line marking
  • Highlight step edges, trip hazards, kerbs, pillars, etc.
Appearance Coloured. Smooth.
Interior or Exterior Interior and exterior.
Composition Solvent based polyurethane.
Number of components 1
Coverage 2.5L: 20m², 5L: 40m².
Recommended number of coats 1
Drying time Touch dry: 10 hours.
Curing time Light use: 24 hours.
Minimum application temperature 10°C
Storage 24 months in manufacturers unopened container.
Cleaning tools Clean tools with White Spirit.

Surface preparation

Apply using a brush to mark lines, designate safety areas or highlight step edges. 
This versatile paint can also be applied by roller to cover larger areas, although two coats would be required for depth of colour. 
Remove grease and oil using Watco Basics Floor Cleaner.  This can also be used to remove grease from existing paint.
If overcoating existing paint, please ensure it is well bonded. Lightly sand any smooth, glossy paint to provide a key.
Make sure the surface is clean and dust free before continuing.
If using the paint over larger areas of new concrete, it should be at least 2 months old and Watco Basics Acid Etcher used to reduce alkalinity.
Such areas of concrete should be sufficiently porous to allow the paint to penetrate and ‘key’.


Holes in excess of 5mm deep can be filled with Watco Basics Floor Repair Mortar, or providing the floor is reasonably level, Watco Pourable Repair Mortar
For repairs which need to be ‘feather edged’ to nothing, or for repairs to damaged joint edges, please refer to Watco Concrex epoxy resin repair mortar.  This should also be used if repairing broken kerb edges or step nosings.  


Do not use if the floor temperature is below 10°C.
The surface must be dry. 
Stir the paint thoroughly. 
If using the Anti Slip Hazard Marking Paint, add the whole tin of aggregate to the 5L paint size, or half the tin to the 2.5L.
Stir the aggregate thoroughly into the paint. 
If applying with a roller, use the roller to work the paint into the surface of bare concrete. Two coats will be required.
If applying by brush, or for cutting in around edges, one coat is usually enough, but on rough or very porous surfaces a second coat may be required. 
Do not apply thickly.

Data sheets

Safety data sheets

Safety Data Sheet

Technical data sheets

Technical Data Sheet

£34.70 (Ex VAT)

In stock

Do you know the size of the area?

Specialist alternatives

Need something tougher?

Ensure you have the right level of durability for your floor

Painting your floor isn't an easy task, so getting the right level of durability will increase the longevity of your floor. In choosing a hardwearing product, you won't need to revisit the project for years.

Shop paint

Watco Epoxyline


Long lasting line marking for heavy wear areas

From £44.00 (Ex VAT)

Applying in cold conditions?

Complete your maintenance projects all year round

Conventional floor paints need to be applied above 10°c in order for them to cure. We’ve formulated products using the latest resin technology, so you can apply them temperatures down to -10°c.

All cold cure

Watco Toughline


Superior quality line marking paint for cold or exterior applications

From £50.50 (Ex VAT)

Tools and accessories

Floor Cleaner

Floor Cleaner

Budget-friendly dirt and grease remover

From £21.00  (Ex VAT)

Acid Etcher

Acid Etcher

Cheap floor preparation essential for painting

£21.00  (Ex VAT)

Watco Paint Mixer

Watco Paint Mixer

A manual mixer for thorough mixing of two-part coatings

£3.00  (Ex VAT)

12" Roller Frame & Handle

12" Roller Frame & Handle

A sturdy roller applying floor coatings

From £7.70  (Ex VAT)

Paint Brush

Paint Brush

Professional paint brushes suitable for all coatings

From £2.20  (Ex VAT)

Watco Low Odour White Spirit

Watco Low Odour White Spirit

Ideal for cleaning tools after application

£4.80  (Ex VAT)

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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