Home Store About Us Contact

Fortis Coat 519 Polyurethane Floor Coating

Fortis Coat 519 is a clear single-pack polyurethane coating for concrete and timber floors. Easy to apply and resistant to yellowing, it provides a durable protective finish for residential, commercial and decorative surfaces exposed to wear and UV light.

Information

Fortis Coat 519 is a premium single-component clear polyurethane coating designed to protect and enhance concrete, timber and compatible decorative flooring surfaces.

The moisture-curing polyurethane formulation produces a tough, hard-wearing clear finish with excellent abrasion and wear resistance. Its resistance to yellowing and UV exposure helps maintain the natural appearance of the underlying surface, making Coat 519 suitable for both internal and compatible exterior applications.

Coat 519 is particularly suited to concrete floors, timber floors, decorative concrete and other surfaces where a durable clear protective coating is required without the mixing requirements of a two-component system.

The single-pack formulation makes application straightforward while providing a professional protective finish for residential, commercial and light industrial environments. Multiple coats can be applied to build a uniform protective surface according to the required service conditions.

Where a water-based, low-odour clear polyurethane system is preferred, consider Fortis Coat 526. For demanding two-component flooring applications requiring enhanced chemical, abrasion and wear resistance, Fortis Coat 527 provides a higher-performance polyurethane topcoat.

Material

Single-Component Moisture-Curing Polyurethane

Advantages

  • Premium single-pack polyurethane coating
  • Clear, non-yellowing finish
  • Contains UV absorbers for improved colour stability
  • Suitable for interior and exterior applications
  • Highly durable and trafficable
  • Excellent stain resistance
  • Good chemical resistance
  • Resistant to tyre staining*
  • Suitable for concrete and timber
  • Ideal for grind-and-seal concrete floors
  • Low odour
  • Xylene free
  • Available in Gloss and Matt

*Refer to Fortis Technical Note #8 – Tyre Staining.


Product Application

Typical Applications

Fortis Coat 519 is suitable for concrete and timber floors, decorative concrete, garages, workshops, residential floors and commercial areas requiring a durable clear polyurethane finish.

Application

Apply Coat 519 to a clean, dry and properly prepared surface using a suitable roller or brush. Remove dust, oil, grease, wax and other contaminants that may affect adhesion.

Stir thoroughly before use while avoiding excessive air entrainment. Coat 519 is a single-component moisture-curing polyurethane and does not require a separate hardener.

Apply thin, uniform coats while maintaining a consistent wet edge. Avoid excessive film build, puddling or repeatedly working material once curing has commenced.

Allow each coat to cure within the recommended recoat interval. If the maximum recoat interval is exceeded, mechanically abrade the surface before recoating. Temperature and humidity will influence curing time.

For floors requiring additional surface grip, Fortis Non-Slip Additive can be incorporated into Coat 519 to produce a textured, slip-resistant finish.

Refer to the current Fortis Coat 519 Technical Data Sheet for complete coverage, recoating and curing requirements.

Surfaces

Suitable Surfaces

Fortis Coat 519 is suitable for properly prepared concrete, timber, decorative concrete and compatible existing coating systems.

Concrete must be clean, sound and dry, with all dust, laitance, oil, grease, curing compounds and other contaminants removed before coating. Mechanically prepare the surface where required to provide a clean and suitable profile for adhesion.

Timber must be clean, dry and appropriately sanded. Remove sanding dust thoroughly before coating. Test Coat 519 on an inconspicuous area where timber species, previous treatments or appearance may affect the final result.

Existing compatible coatings must be firmly bonded, cleaned and mechanically abraded before recoating. Test adhesion before proceeding.

Coat 519 is not intended to control rising damp or significant moisture vapour transmission through concrete. Moisture conditions should be investigated before coating where dampness is suspected.


Specifications

Feature
Specification
Product Type
Single-component moisture-curing polyurethane
Mixing
Single pack – no hardener required
Application
Roller or brush
Color
Clear
Finish
Gloss / Matt
Film Thickness
50 μm @ 8 m²/L
Coverage Rate
8–10 m²/L
Number of Coats
Minimum 2; 3 recommended
Recoat
6–24 hours @ 25°C / 65% RH
Final Cure
7 days
Application Temperature
15–35°C

Pack Sizes

500 mL, 4 L, 20 L

Available Colours

Clear

FAQs

What is Fortis Coat 519?

Coat 519 is a clear single-component polyurethane coating designed to protect concrete, timber and compatible decorative flooring surfaces.

Does Coat 519 require a hardener?

No. Coat 519 is a single-pack moisture-curing polyurethane, so no separate hardener or mixing ratio is required.

Does Coat 519 yellow in sunlight?

Coat 519 is formulated for excellent resistance to yellowing and UV exposure, helping maintain the appearance of the underlying surface.

Can Coat 519 be used on concrete floors?

Yes. It is suitable for properly prepared concrete where a durable clear protective polyurethane finish is required.

Can Coat 519 be used on timber floors?

Yes. Coat 519 can be applied to properly prepared and sanded timber. Test a small area first to confirm appearance and compatibility.

Can Coat 519 be used outdoors?

Its UV stability makes it suitable for compatible exterior applications where substrate preparation and exposure conditions are appropriate.

What is the difference between Coat 519 and Coat 526?

Coat 519 is a single-pack moisture-curing polyurethane. Coat 526 is a two-component water-based polyurethane suited where low odour and water-based application are preferred.

What is the difference between Coat 519 and Coat 527?

Coat 519 provides convenient single-pack application, while Coat 527 is a two-component polyurethane topcoat for more demanding flooring applications.


Downloads

Technical Datasheets

Fortis Coat 519 Gloss Technical Data Sheet
Fortis Coat 519 Matt Technical Data Sheet

Safety Datasheets

Fortis Coat 519 Safety Data Sheet

Resources

Refer to Resources