I hesitate to use silicone sprays around an automobile. Silicone travels. It transfers from one surface to another to another. It can cause all types problems if you're trying to paint your car or interior or even engine parts. It can cause problems with electric motors that use brushes.
Found this about the 303. I didn't know it is sold by WalMart. If your store doesn't have, you can order it online. This, from the WalMart website:
https://www.walmart.com/ip/...=9010825&wl6=&wl7=&w l8=&wl9=pla&wl10=8175035&wl11=online&wl12=25607506&wl13=&veh=sem
About This Item
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No other product provides this much protection for your boat and water gear. Use Aerospace Protectant to keep your boat's seats, sails, hull and windows colorful and clean. Aerospace's marine formula is a premium protectant designed to safeguard boats and boat equipment against the damaging effects of daily exposure to UV rays. It's safe for use on outdoor gear and apparel, too. Simply spray on and wipe dry to restore color and luster, repel stains from suntan oil and prevent fading even in the harshest marine conditions and sunniest climates. Aerospace Protectant will even help keep fishing gear clean and prevent inflatable boats from sticking together during storage. Use only on clean, dry surfaces. For best results use 303 Multi-Surface Cleaner. Place a drop cloth under the cleaner to be treated to catch any overspray.
303 (30306) Marine Aerospace Protectant Trigger Sprayer, 32 oz:
Powerful UV blockers prevent fading, cracking and premature aging
Dries to a clear matte finish
Restores lost color and luster
Easy to use: Simply spray on and wipe dry
Safe and effective for: vinyl, Plexiglas, carbon fiber, rubber, plastics and finished leather
Warnings:
California Proposition 65 Warning: WARNING: This product contains chemicals known to the State of California to cause cancer.
[This message has been edited by fierofool (edited 07-24-2018).]