303 Marine Fabric Guard – 32oz

A full shelter cover or a couple of motorcycle covers will go through a small bottle fast. The 32 oz 303 Fabric Guard is the size for that. Spray it on clean, dry fabric and it restores water and stain repellency to factory levels, according to 303.

You know it’s time when rain stops beading up and starts soaking in.

• Restores lost water repellency on outdoor fabric.
• Protects against water-based and oil-based stains.
• Safe for synthetic and natural fibers.
• Doesn’t change the fabric’s color, feel, flammability or breathability.
• Recommended by a leading outdoor fabric maker. Made in the USA.

Do it right: clean the fabric first and let it dry all the way, because Fabric Guard won’t bond over dirt. 303 suggests its Tonneau Cover & Convertible Top Cleaner for that. Test a hidden spot, then work in even, overlapping passes.

It’s also good for outdoor leather seats, boat covers, awnings and Dacron sails.

Treating your Speedway Shelter cover? Read our guide on how to make a motorcycle cover last for when to clean, treat and air it out.

Common Questions

How much 303 Fabric Guard do I need for a motorcycle cover?
303 doesn’t give a coverage figure. The 32 oz bottle is the size for a big cover, a second coat later, or covers plus boat and patio fabric.

Does 303 Fabric Guard protect against oil stains?
Yes. 303 says it protects against both water-based and oil-based stains on synthetic and natural fibers. Apply it to clean, dry fabric for the full effect.

Will 303 Fabric Guard change how my cover looks or breathes?
No. 303 says it doesn’t alter fabric color, feel, flammability or breathability. Breathing matters on a cover, because moisture trapped underneath is what grows mildew. Test a hidden spot first anyway.

WARNING: This product can expose you to chemicals including Ethylbenzene which is known to the State of California to cause cancer. For more information go to P65Warnings.ca.gov.