Hundreds of Uses of 303® Protectant

303® Protectant is formulated to keep your items looking newer, longer!

Check out the hundreds of uses of 303® Protectant we have found across a variety of industries. 

We would love to hear from you if you have any unique uses for 303® Protectant not listed. 

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  • You tube has a story about soaking serpentine belt in product, it will for ever. Also wiper blade will last longer.

  • Which 303 product do I use on pontoon cover after washing?

    • Hi Herman, for vinyl: 303 Aerospace Protectant. For canvas: 303 Fabric Guard. Please contact us at if you have any questions about this. Thank you!

  • Just tried this for the first time on the vinyl and plastic interior of my 2001 Silverado. So far I am very pleased with the results!! How is this product rated as far as uv protection?

  • Can I use this product on the outer finish of the RV. It has lots of stickers and laminate side walls? Guessing its a mixture of Paint and Decals