Before I even ask the question I know one answer: Just replace the blades.
Now, here is my question. Is it possible to extend wiper life by treating the blades with Aerospace 303 or other similar product?
From what I can tell, Aerospace 303 is a pretty rudimentary polyacrylate emulsion with a little UV inhibitor added. I used it for several years on my roof and was not happy with its performance. I doubt that it will do anything other than make the blades stiffer.
George keep the sun off them unless moving will extend their life. Minor expense to replace.
I replaced blades at O'Reilly in Ardmore, OK, at the beginning of a trip. I went in carrying blade and thinking I might be able to find a replacement. One of the counter jockeys took it upon himself to fix me up. He found the longest refill he could and we found that it slipped right into the old blade. I put one in with the locking end at the top, and the other with the locking end at the bottom. I cut off extra length, and the blades actually line up with each other when parked in home position. They work well. Cost was $8.00 and 20 minutes in the store looking dumb while the young man helped me out.
You can use water pipe tubular-sleeve foam insulation. You can also use closed cell foam pool Noodles (found in toy department) if you want colored ones. Mine are blue to match the coach color. Buy a 3 foot piece and cut it to length. Slips right over the wiper blades. Use it when parked. But going down the highway they are in storage.
I carry a couple of tennis balls with me and slip them under the arms, keeps the rubber from taking a set from the pressure.
I use Wiper Buddies as wiper standoffs: www.wiperbuddy.com (http://www.wiperbuddy.com)
We use the black foam pipe insulation that comes in a 5 foot section at Home Depot and Lowe's. Usually under $3.00.
What we like about this product is that it is so easy to slide over the wiper blades, it keeps the blades off of the glass and protects the entire blade from UV rays.
A couple of years ago I paid about $75.00 at NAPA for a set of blades and it has not rained since here in NW Florida.
I am using a couple of clothes line "pegs" (old English expression) and they seem to work fine to keep wipers off windscreen, and are cheap.
John, I just finished washing my coach and now will install a pair of clothes line pegs. What a great idea
Thanks