Aircraft carrier at sea

Interior Decking

High Performance Decking Systems for Interior Marine Environments

Seaguard® Interior Marine Decking

Seaguard Interior Marine Decking, is the Sherwin-Williams line of interior marine decking solutions for both commercial and government marine vessels. These high performance, ultra-high-solids, low odor systems work in both wet and dry spaces, and are easily applied on properly prepared surfaces, including steel, aluminum, sealed underlayment, and properly cured primers.

The Seaguard Grout Coat is qualified to ANSI A118.10, American National Standard Specifications for Load Bearing, Bonded, Waterproof Membranes for Thin-set Ceramic Tile and Dimension Stone Installation — 2014, allowing it to serve as a waterproof membrane in wet spaces. This approval eliminates the need for an additional waterproof membrane coat. Using SeaGuard Grout Coat reduces the number of coats, saves schedule and labor, and reduces the overall system cost.

Seaguard Interior Marine Decking offers the following:

  • Approved for both surface ships and submarines
  • Tough, durable and seamless finish
  • Type IV: Chemical-resistant flooring
  • Available in a flake or quartz finish
  • Bio-renewable
  • Ultra-high-solids coatings with less than 250 g/L VOC
  •  A selection of standard colors and custom decorative options including logo designs and fleet colors

Ease of Application with High-Performance Results

Sherwin-Williams SeaGuard interior decking systems meet U.S. Navy decking specifications and are designed to maximize performance and minimize environmental impact. These robust systems were also designed for ease of application for overall cost savings. 

Sherwin-Williams interior decking offers:

  • Excellent working times
  • Ideal recoat windows for maximum productivity
  • Reduced number of coats

Watch Application Videos

Applicator installing a high-performance topcoat on decking system.

 Interior Marine Decking for Function and Aesthetics

Seaguard Decking delivers on performance and aesthetics. Seaguard is available as a decorative color flake system and as a one-step quartz system. Both decking systems are formulated for excellent flexibility and adhesion to steel and aluminum decks. Their recommended uses include wet spaces, galleys, passageways, and areas where deck irregularities are present. Both systems can be used to create slope-to-drain areas and SeaGuard One-Step system can also be used to create cove base. Learn more about these systems below. 

  • We Are Here To Help

    Our sales and tech teams are prepared to answer questions regarding which of our interior decking
    solutions is best for your marine needs. Fill out the form below to tell us about your project. 


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Explore our knowledge base on all things marine coatings and linings.

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