303 Automobile Tonneau Cover & Convertible Top Cleaner – 16oz

303 Tonneau Cover & Convertible Top Cleaner is the cleaning step 303 recommends before you treat fabric with 303 Fabric Guard or Protectant. Fabric Guard won’t bond to dirty fabric, so this goes first.

It’s made to clean and brighten tonneau covers, fabric and vinyl convertible tops and car bras, and it handles both hard and soft tops. It rinses off without leaving residue, which is what you want before a protectant goes on.

• Cleans and brightens hard and soft tops.
• For tonneau covers, fabric and vinyl convertible tops and car bras.
• Rinses residue-free.
• 16 oz. Made in the USA.

Using it on a fabric motorcycle cover: 303 lists it for car and truck fabric, so test a small hidden spot on your cover first. If that looks good, clean the cover, rinse, let it dry completely, then spray on Fabric Guard to bring the water repellency back.

That two-step routine is the same one we describe in our guide on how to make a motorcycle cover last. It works on a Speedway Shelter cover too, as long as the spot test passes.

Common Questions

How do I clean a tonneau cover?
303 Tonneau Cover & Convertible Top Cleaner is made for it. It cleans and brightens hard and soft tonneau covers, fabric and vinyl convertible tops and car bras, and rinses off without residue.

Should I clean a cover before using Fabric Guard?
Yes. 303 recommends this cleaner before treating with 303 Fabric Guard or Protectant. Fabric Guard needs clean, dry fabric, so let the cover dry completely after rinsing.

Can I use the tonneau cleaner on a motorcycle cover?
303 makes it for fabric and vinyl tops and covers. For a fabric bike cover, it’s the cleaning step before Fabric Guard. Test a small spot first.

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.