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Fortis Coat 527 Clear Polyurethane Floor Topcoat

Fortis Coat 527 is a premium clear protective topcoat for epoxy and decorative flake floors exposed to demanding wear. It provides a tough, long-lasting finish for garages, workshops, warehouses, factories and commercial flooring.

Information

FORTIS Coat 527 Clear is a high-performance, two-component, acrylic-modified polyurethane coating that provides a durable, non-yellowing clear gloss finish for interior and exterior applications.

Designed for concrete and timber surfaces, Coat 527 combines excellent chemical resistance, durability and fast drying performance. Its self-priming formulation makes it suitable for prepared concrete floors, commercial flooring, restaurants, cafes, warehouses, factories and decorative flake flooring systems.

Coat 527 is also suitable for timber flooring and as a protective clear finish over compatible, suitably prepared epoxy coatings, including epoxy-coated wall surfaces. Existing coatings must be checked for compatibility and adhesion before application.

Durable Clear Polyurethane Protection

Coat 527 provides a trafficable, chemical-resistant gloss finish with tyre-stain resistance subject to tyre compound and application conditions. Refer to the FORTIS Tyre Resistance Technical Bulletin for further information.

Apply 2–3 coats at approximately 5–10 m²/L per coat. Vehicle traffic may commence after approximately 72 hours, while full cure is achieved after approximately 7 days, depending on conditions.

For customers comparing clear floor coating systems, FORTIS Coat 519 offers a moisture-curing polyurethane alternative, while FORTIS Coat 526 provides a water-based polyurethane option.

Material

Two-Component Clear Polyurethane

Advantages

  • Premium two-component clear polyurethane topcoat
  • Non-yellowing clear finish
  • Excellent abrasion and wear resistance
  • Excellent chemical and stain resistance
  • Tough, flexible and impact resistant
  • Recommended over compatible epoxy flooring systems
  • Ideal protective topcoat over decorative flake floors
  • Suitable for prepared concrete and compatible coatings
  • Suitable for demanding commercial and industrial floors
  • Approximately 45-minute pot life
  • 5–10 m²/L typical coverage
  • Available in 4 L and 20 L packs

Product Application

Surface Preparation

All surfaces must be thoroughly dry, clean and free from contaminants. Sand or mechanically grind to provide a suitable surface key. Diamond grinding is recommended for concrete. Allow new concrete to cure for at least 28 days before coating. Existing coatings must be tested for adhesion and compatibility.

Mixing

Mix 4 parts A with 1 part B by volume. Thoroughly combine using a 300 rpm drill with a Jiffy mixing blade or equivalent. Mix only the quantity that can be applied within the approximately 45-minute pot life.

Application

Apply using a quality 5 mm nap roller, brush or suitable spray equipment. For floor applications, pour mixed material directly onto the surface and spread evenly. Apply at 5–10 m²/L per coat, depending on the substrate and required film build.

Apply 2–3 coats to achieve the required coating system. Lightly sand between coats with a 150-grit mesh screen to remove surface defects.

Recoating and Curing

Recoat after approximately 8–24 hours. Sanding is essential where the previous coat has cured for 24 hours or longer to promote intercoat adhesion. Allow only light foot traffic for the first 2–3 days. Vehicle traffic may commence after approximately 72 hours, subject to curing conditions. Full cure takes approximately 7 days.

Clean-Up and Maintenance

Clean uncured material with acetone or xylene. Allow used rollers to cure before disposal. Do not wash or cover the coating with mats until fully cured. Maintain using a neutral cleaner.

Drying and curing times vary with temperature, humidity, ventilation and film thickness. Refer to the TDS and SDS before use.

Surfaces

  • Concrete Floors: Properly prepared concrete floors in residential, commercial and industrial environments.
  • Warehouse and Factory Floors: Prepared concrete surfaces requiring a durable, chemical-resistant clear finish.
  • Restaurants and Cafes: Prepared concrete flooring in hospitality and commercial environments.
  • Timber Flooring: Properly sanded and prepared timber floors requiring a protective clear gloss coating.
  • Decorative Flake Floors: Compatible, suitably prepared decorative flake flooring systems.
  • Epoxy-Coated Surfaces: Compatible, suitably prepared epoxy coatings, including epoxy-coated walls, subject to satisfactory adhesion testing.
  • Existing Coatings: Previously coated surfaces where compatibility and adhesion testing confirm suitability.

Surface Preparation: All surfaces must be thoroughly dry, clean and appropriately keyed. New concrete must cure for at least 28 days before application. Existing coatings must be tested for adhesion and compatibility.


Specifications

Feature
Specification
Product Type
Two-component acrylic-modified polyurethane
Colour
Clear
Finish
Gloss
Mix Ratio
4:1 (Part A : Part B) by volume
Pot Life
Approx. 45 minutes
Coverage Rate
5–10 m²/L
Film Thickness
60 μm @ 7.5 m²/L
Number of Coats
2–3 coats
Touch Dry
1–3 hours
Hard Dry
10–24 hours
Recoat
Approx. 8–24 hours
Final Cure
7 days
Primer
Self-priming on suitable surfaces
Application
Brush, roller or airless spray

Pack Sizes

4 L, 20 L

Available Colours

Clear

FAQs

Does FORTIS Coat 527 Clear require a primer?

No. Coat 527 is self-priming on suitably prepared surfaces. Existing coatings require compatibility and adhesion testing.

How many coats of Coat 527 are required?

Apply 2–3 coats at approximately 5–10 m²/L per coat, depending on the substrate and required film build.

Can Coat 527 be applied over epoxy coatings?

Yes, over compatible, suitably prepared epoxy coatings, including epoxy-coated walls. Adhesion testing is required before application.

Is Coat 527 suitable for garage floors?

Yes. Coat 527 offers tyre-stain resistance, but performance varies with tyre compounds. Refer to the FORTIS Tyre Resistance Technical Bulletin.

Can Coat 527 be used outdoors?

Yes. Its non-yellowing formulation is suitable for interior and exterior applications.

How long before vehicles can use the floor?

Allow approximately 72 hours before vehicle traffic. Full cure takes approximately 7 days, depending on conditions.

What is the mixing ratio and pot life?

Mix 4 parts A to 1 part B by volume. Pot life is approximately 45 minutes.

When can Coat 527 be recoated?

Recoat after approximately 8–24 hours. Sand between coats after 24 hours to promote adhesion.


Downloads

Technical Datasheets

Fortis Coat 527 Technical Data Sheet

Safety Datasheets

Fortis Coat 527 Part A Safety Data Sheet
Fortis Coat 527 Part B Safety Data Sheet

Resources

Epoxy vs Polyurethane vs Polyaspartic Floor Coatings
How Temperature Affects Floor Coating Application
Why Do Bubbles and Pinholes Form in Epoxy Flooring?
Why Does Floor Coating Reject or Form Fish Eyes?
Why Do Car Tyres Stain Epoxy Floors?