303 Marine Fabric Guard – 1 Gallon (30674) | Restore Water & Stain Resistance

Protect and extend the life of your outdoor fabrics with the 303 Marine Fabric Guard – 1 Gallon (30674), a premium solution designed to restore water repellency and stain resistance to marine and outdoor materials. Ideal for boat covers, bimini tops, sail covers, cushions, and outdoor gear, this advanced formula helps keep fabrics looking and performing like new.

Engineered to restore factory-level water resistance, 303 Fabric Guard creates a powerful barrier that repels water, prevents stains, and reduces the risk of mold and mildew buildup. Unlike silicone-based products, it maintains the breathability of fabrics, ensuring moisture can escape while still providing maximum protection.

Safe for use on a wide range of materials including Sunbrella®, canvas, nylon, polyester, and other synthetic or natural fabrics, this formula is easy to apply and dries clear without altering color, texture, or feel.

Perfect for marine, RV, patio, and outdoor use, the 303 Marine Fabric Guard delivers long-lasting protection against the elements, helping you preserve your investment and keep your gear in top condition.

Keep your fabrics protected, clean, and water-resistant with 303 Marine Fabric Guard, the trusted choice for superior fabric care and outdoor performance.

Key Features:

• Restores waterproofing and stain resistance to factory-new levels
• Safe for all outdoor and marine fabrics, including Sunbrella®
• Maintains breathability, color, and softness
• Provides UV protection to prevent fading and fabric breakdown
• Easy-to-apply formula with long-lasting results
• Large 1-gallon size for multiple applications

Core Technology & Performance

• Restores Water Repellency: Specifically engineered for Sunbrella and other outdoor fabrics, it makes water bead up and roll off, preventing the fabric from becoming "soaked" during rain or heavy spray.

• Stain & UV Protection: It creates a protective shield that resists oil-based stains, bird droppings, and environmental pollutants. It also helps prevent the fabric from fading due to intense UV exposure.

• Maintains Breathability: The formula protects the fabric without clogging the weave, ensuring the material remains breathable to prevent mildew growth underneath covers or enclosures.

• Odorless When Cured: While it has a solvent scent during application, it becomes completely odorless once it has fully dried and cured in the sun.

Technical Specifications

• Model Number: 30674

• Size: 1 Gallon (128 fl. oz.)

• Coverage: Approximately 150–200 sq. ft. per gallon depending on fabric weight and saturation.

• Compatibility: Safe for all synthetic and natural outdoor fabrics, including canvas, upholstery, and carpets.

• Manufacturer Recommendation: The only product recommended by Glen Raven, Inc. for restoring water repellency to Sunbrella® fabrics.

Whether you're preparing your boat for the season or protecting your outdoor living space, 303 Marine Fabric Guard is the trusted choice for premium fabric care.

Why Choose 303 Marine Fabric Guard?
Extend the lifespan of your fabrics and avoid costly replacements. With professional-grade protection and proven performance, this fabric guard is a must-have for boat owners and outdoor enthusiasts.

Application Tip: For the best results, apply to a completely clean and dry surface on a warm, sunny day. Spray in a cross-hatch pattern until the fabric is evenly wet, then allow it to cure for 6–12 hours before exposing it to moisture.

Manufacturer : 303
Manufacturer Part No : 30674
Product : 303 FABRIC GUARD 128 FL OZ