Camping World and other places sell a product called "Sun Block for Tires" (and other rubber surfaces).
Claims to control aging, cracking, and weather checking. Protects blackwall tires exposed to harmful ultra-violet radiation. Bonds to rubber to provide long lasting protection. Says: 1) provides maximum protection from UV rays; 2) formulated to provide years of protection; 3) provides a like-new tire finish. Also says, "Never buy another tire cover".
Has anyone ever used this product and is it as good as putting covers on your tires (parked in CG or storage)?
You have to prep the tire before you paint this stuff on the sidewalls of the tires (exposed to sun).
Go OSU Beavers Class of '73. RVing 28 years BAC Member
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Most of what I've read on the subject indicates you should put nothing on the tires. Some products can even make tires deteriorate faster. Tires are built with chemistry that releases UV protection (anti-oxidant) to the surface as the tire heats and flexes on the road. Applying some store-bought stuff, petroleum or silicone based, can interfere with the natural chemistry of the tire. Just keep them clean, because dirt can interfere with rubber tires just as it can with your slideout seals, and some consider dirt to be rubber's worst enemy short of UV light. Use tire covers if parked for lengthy periods exposted to sunlight, but don't use products that might seal the sidewall pores so built-in protective chemicals can't get to the surface.
Gerald probably knows more about tire chemistry than I do, and could perhaps explain it better, but I've related the gist of what I understand.
Joel and Lee Ashley 36 ft 2006 Monterey C9 400HP Cat Beaver Believers
The 303 really is a great product for rubber and vinyl, it does provide a polymeric bonding(PDMS) coat that is primary for UV blocking agent. Some are better than others. You need to stay away from petroleum and silicone products.
The water based ones are probably the best for UV protection etc. They being 303, vinylex, Zaino brand Autoint brand. They all use PDMS as the priamry protectant which is not like the old silicone crap in the old Armour All. If you have ever seen a vinyl dash with a crack in it you can bet that it had Armour All on it!
I think the wheel covers look so tacky especially on a Beaver. I've seen some that have a square material hanging on each wheel well. This material seems to match that which they cover the windshields and side front windows when the rig is parked in a CG. This seems to look better than those white covers that I'm told are often blown off by wind or stolen too.
Richard, If you think that tire covers look tacky on a BEAVER, you should take a good look at the wheel/tire covers that MCD produces. They, in my opinion, are real classy and they don't blow off and are extremely easy to put on and take off. I love them.
2008 Contessa (425 hp Cat) 38' PT Cruiser/SMI braking
The problem with our tires is that they are actually designed to deteriorate. It Federal government requires tire manufacturers to compound the tires in such a way that they will not just lay there in the landfills forever like the old tires used to do. This is not a problem on most vehicles, since the tread will wear out with normal usage long before the carcass starts to fall apart, but with RVs, trailers and the like, we don't use them enough to wear the tread out. I don't believe that there is anything that you can put on your tires that will extend their lives beyond the 5-7 years we all take as the upper limits of use. BTW, we had a serious crash near my house last night on I-95 where a Class A rolled over. The news reports said "no serious injuries", but the picture showed the rig upside down, with the right steer tire blown.