Industrial Protective Coatings

Polyurethane Primer Finish Coat
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PU 55
HB DTM Gloss

PU 55 HB DTM Gloss is a two-component, high-build, solvent-based aliphatic polyurethane primer and finish coat designed for direct-to-metal protection of ferrous and non-ferrous surfaces. Its advanced formulation combines additional UV stabilisers, new-generation adhesion promoters and a specialised organic corrosion inhibitor to provide excellent adhesion, weathering resistance and corrosion protection.

The tough, glossy coating forms a highly water-resistant, hydrophobic film with excellent abrasion and impact resistance. Its ability to adhere directly to correctly prepared metal and galvanized steel makes it a versatile solution for structural steel, roofing and cladding, industrial equipment, metal furniture and other demanding interior and exterior applications.

Interior & Exterior
Solvent Based
Two Component

Features & Benefits

  • Direct-to-metal performance
    Excellent adhesion directly to correctly prepared metal and galvanized steel.
  • Primer and finish in one
    Can provide both protective and decorative functions in suitable applications.
  • High-build formulation
    Achieves 50–80 µm DFT per coat, reducing the number of coats required for specified film build.
  • Enhanced corrosion protection
    Specialised organic corrosion inhibitor improves protection on ferrous and non-ferrous metals.
  • Excellent water resistance
    Produces a highly water-resistant, hydrophobic coating film.
  • UV stabilised
    Aliphatic polyurethane technology with additional UV stabilisers provides excellent exterior durability.
  • Outstanding gloss retention
    Helps maintain the appearance of exposed surfaces over extended service.
  • Non-chalking and non-yellowing
    Supports long-term colour and appearance retention.
  • Highly flexible
    Combines protective hardness with flexibility.
  • Fast drying
    Supports faster application and return-to-service schedules.
  • High abrasion resistance
    Suitable for surfaces exposed to mechanical wear.
  • High impact resistance
    Provides a tough protective finish for equipment and structures.
  • Highly resistant to blistering
    Supports coating integrity under demanding exterior conditions.
  • Overcoatable
    Allows additional coats to be applied where required by the specification.
  • Chemical resistance
    Resistant to mild chemicals, dilute industrial chemicals and aqueous solutions.
  • Salt-water resistance
    Provides resistance to salt-water exposure within the stated service limitations.
  • Oil and solvent resistance
    Resists mineral and vegetable oils, paraffins and aliphatic solvents.
  • High-temperature resistance
    Withstands dry continuous temperatures up to 150°C.
  • Wide colour availability
    Available in RAL, NCS, SABS, metallic, fluorescent and custom colours.

Intended Uses

PU 55 HB DTM Gloss is designed as a protective and decorative coating for metal surfaces, including applications where direct-to-metal performance is required. It can also be applied over suitably primed substrates as part of a broader protective coating system.

Its combination of corrosion resistance, excellent adhesion, high film build and exterior weathering performance makes it suitable for both new construction and maintenance applications. The cured polyurethane film provides resistance to mild chemicals, salt water, mineral and vegetable oils, paraffins, aliphatic solvents, dilute industrial chemicals and other aqueous solutions.

The coating can also be used where appearance is important. Its gloss finish, UV stability, non-chalking and non-yellowing properties provide a durable aesthetic finish while maintaining the protective performance required for industrial and exterior environments.

Typical Applications:

  • Metal roofing
  • Metal cladding
  • Galvanized roofing and cladding
  • Structural steel
  • Mild steel structures
  • Galvanized steel structures
  • Ferrous metal components
  • Non-ferrous metal components
  • Agricultural equipment and machinery
  • Earthmoving equipment
  • Construction equipment and machinery
  • General industrial equipment
  • Plant and machinery
  • Metal furniture
  • Metal framework
  • Floor coatings
  • Line demarcation
  • Wall coatings
  • Industrial flooring
  • Trafficable flooring
  • UV-resistant topcoats over epoxy flooring
  • UV-resistant topcoats over polyurethane flooring
  • Industrial maintenance
  • Equipment refurbishment
  • Exterior metal protection

Technical Information:

  • Product Type: High-build DTM polyurethane primer / finish coat
  • Technology: Two-component, solvent-based aliphatic polyurethane
  • Category: Steel Structure Corrosion Protection – Polyurethane
  • Service: Interior and exterior
  • Colour: RAL, NCS, SABS, metallic, fluorescent and custom colours
  • Finish: Gloss
  • Mixing Ratio – A:B: 4:1 by volume
  • Activator: PU Activator 54 AL XL – Component B
  • Mixed Density: Approximately 1.15 kg/L
  • Volume Solids: 60% ±2%
  • Typical Dry Film Thickness: 50–80 µm DFT
  • Typical Wet Film Thickness: 85–130 µm WFT
  • Theoretical Coverage: Approximately 8.0 m²/L at 75 µm DFT, before allowance for loss factors
  • Number of Coats: 1–2, depending on specification
  • Application Methods: Conventional spray, airless spray, brush or roller
  • Dry Continuous Temperature Resistance: 150°C
  • Pot Life at 15°C: 4 hours
  • Pot Life at 20°C: 3 hours
  • Pot Life at 25°C: 2 hours
  • Pot Life at 40°C: 1 hour
  • Thinner: PU Thinner or Solvent XL
  • Thinning: 0–30%, depending on application
  • Airless Spray Viscosity: 22–25 seconds FC4
  • Conventional Spray Viscosity: 18–20 seconds FC4
  • Airless Spray Tip: 11–17 thou
  • Minimum Airless Pressure: 150 bar / 2200 PSI
  • Conventional Spray: Pressure or gravity feed
  • Conventional Spray Fluid Tip: 1.2–1.6 mm
  • Typical Brush/Roller Film Build: 50–70 µm
  • Cleaner: SA65 Thinners
  • Minimum Surface Temperature: 5°C or 3°C above dew point
  • Maximum Surface Temperature: 40°C
  • Minimum Ambient Temperature: 5°C
  • Maximum Ambient Temperature: 45°C
  • Maximum Relative Humidity: 85%
  • Kit Sizes: 5 L and 20 L
  • Shelf Life – Part A: Minimum 12 months at 25°C
  • Shelf Life – Part B: Minimum 12 months at 25°C

Colours & Finishes

RAL Colours

NCS Colours

SABS Colours

Metallic Colours

Fluorescent Colours

Please Note: Colour swatches and illustrations displayed are only to be used as a guide and can vary from the original.

Industrial Protective Coatings

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