Waterproof SeaMark fabric in RainWaterproof SeaMark fabric in Rain

Sunbrella® SeaMark® Fabric

Tough, waterproof performance



Closeup of blue SeaMark fabric with water dropletsCloseup of blue SeaMark fabric with water droplets
Closeup of water droplets on SeaMark fabricCloseup of water droplets on SeaMark fabric

Sunbrella SeaMark

If it has to be waterproof, it has to be SeaMark

Defend against extreme precipitation and moisture with Sunbrella SeaMark fabric. Engineered with durable Sunbrella fabric and waterproof backing, SeaMark delivers strong performance without sacrificing style. Superior weather resistance also makes SeaMark a top choice in shade material in environments that see extreme weather, delivering ultimate protection against heavy rain, harsh sun rays, mold, mildew, and other outdoor elements.

SeaMark® is a registered trademark of the Haartz Corporation.

Closeup of blue SeaMark dimension fabrics

Sunbrella SeaMark is available in over a dozen colors spanning a palette of classic colors. This protective, waterproof fabric is ideal for awning and boat projects. For boats, use SeaMark for applications like enclosures, bimini tops, and dodgers. Sunbrella SeaMark can also be used for awning, canopy and other shade structures.

Charcoal Tweed

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Royal Blue Tweed

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Captain Navy

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  • Waterproof

    Sunbrella SeaMark shields against even the toughest weather with complete waterproof protection.

  • Fade Resistant

    Durable Sunbrella fibers are saturated to the core with color and UV stabilized pigments, ensuring our fabrics won’t fade or become damaged due to the sun’s harsh rays or normal wear. Sunbrella fabrics, unlike ordinary fabrics, are solution-dyed with rich colors that stay brilliant over time no matter the environment.

  • Stain Resistant

    Sunbrella fabrics are engineered with built-in moisture resistance. With a protective finish that won’t wash away, even after daily use, Sunbrella fabrics stands up to life’s toughest messes.

  • Mold & Mildew Resistant

    All Sunbrella fabrics are resistant to mold and mildew. Should exposure to dirt, debris, sun lotion, or other environmental elements cause mold or mildew to occur, simply spot clean with a bleach solution.

  • Easy to Clean

    Engineered to maintain their integrity, Sunbrella fabrics are easy to clean. When life happens, blot spills with a clean, dry cloth and use mild soap and warm water to remove. For even the toughest messes, our fabrics are safe to clean with a diluted bleach solution.

5 Year Limited Warranty5 Year Limited Warranty

Sunbrella fabrics are promise of quality, comfort, and peace of mind. We value making fabrics with complete performance that stand up to everyday life. That’s why Sunbrella is confident in standing behind every fabric with comprehensive warranties, including a 5-year limited warranty covering loss of strength or color due to normal usage and exposure for upholstery, specialty, and decorative shade fabrics.

SeaMark Waterproof Marine Fabric

SeaMark Waterproof Marine Fabric
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3 Products

  1. Sunbrella SeaMark Captain Navy (2098-0063)
    Sunbrella SeaMark
    SKU 2098-0063
    $4.00 / sample
  2. Sunbrella SeaMark Royal Blue Tweed (2103-0063)
    Sunbrella SeaMark
    SKU 2103-0063
    $4.00 / sample
  3. Sunbrella SeaMark Navy (2107-0063)
    Sunbrella SeaMark
    SKU 2107-0063
    $4.00 / sample
Close up of a colorful assortment of Sunbrella SeaMark fabrics

Where to Buy

Discover Sunbrella upholstery fabrics at a location near you and explore patterns and textures that fit your style!