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Dura-Plate® SW-501 Series

An advanced solvent-free epoxy technology for extreme offshore service

Based on a technology platform with over 20 years of proven track record protecting offshore wind, inland waterways and sheet-piling assets, the Dura-Plate SW-501 range of products has evolved to set a new bar in modern performance and emissions requirements.

The Dura-Plate SW-501 range serves a widening landscape of pre-qualification and design requirements for corrosion protection of offshore assets. Dura-Plate SW-501, Dura-Plate SW-501 GF and Dura-Plate SW-501 GF20 share the same chemistry backbone, proved over decades in service, with variable levels of lamellar glass flake adapting to specific project requirements. The same level of user-friendly application and finish quality is a hallmark feature of the entire range.

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Key Features of Dura-Plate SW-501 Series

  • Excellent flow and aesthetics
  • Solvent-free epoxy coating system
  • Abrasion and impact resistance
  • Early water immersion resistance
  • Compatibility with cathodic protection systems
  • Easy to apply with single-leg airless equipment
  • Exceptional adhesion to blasted steel
  • Variable levels of glass-flake content options

Three coatings. One family.

Dura-Plate SW-501

The tried and tested epoxy coating: certified, simple, effective, durable.

  • NORSOK M-501, rev. 7 approved*
  • ISO 12944-2018 approved*
  • VGBE-S-021-01-2023-05-DE approved*
  • VGBE/BAW-Standard (2023-05)*

Dura-Plate SW-501 GF

Lamellar glass-flake epoxy with enhanced mechanical resistance and barrier properties alongside extended suite of pre-qualifications.

  • Optimised lamellar glass flake content
  • NORSOK M-501, Rev.7 approved*
  • ISO 12944:2018 approved*
  • Best-in-class film formation for a glass-flake epoxy, resulting in improved surface appearance and levelling versus traditional glass flake containing products

Dura-Plate SW-501 GF20

20% glass flake content for maximum prequalification reach and compatibility with the latest requirements.

  • Enhanced lamellar glass flake content
  • NORSOK M-501, Rev.7 approved*
  • Meets ISO 24656:2022 Annex D System V definition (minimum 20% content of lamellar glass flake)*
  • Excellent film formation for a 20% glass-flake epoxy, resulting in improved surface appearance and levelling versus traditional glass flake containing products

*Contact Sherwin-Williams for detailed information on approved systems and qualification documentation


Application Areas

waterway weir

Steel structures in immersed or buried service: waterways, sheet piling, hydroelectric power and more.

offshore wind tower foundations transported via barge

Offshore Wind foundations: fixed or floating - monopiles, jackets, transition pieces, hulls, etc.

offshore oil platform foundations

Oil & Gas upstream offshore assets: for splash zone, immersed or extreme atmospheric corrosivity service.


Two overlapping Sherwin-Williams product brochures for DURA-PLATE SW-501 protective coating, showing a comparison graphic, coating system diagrams, product information, and application imagery.

Dura-Plate SW-501 Series

Product Information Sheet

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