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Old January 12th 05, 03:56 PM
Burt Squareman
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"TeGGer®" > wrote > <snip>

> CV joint boots split from steering, cold, and driveshaft angles, period.


CV joint boots split from steering, cold, or driveshaft angles only after premature
aging induced by heat cycling, oil contaminants or Ozone, to name a few. As boot
materials improve mechanical damage will become a leading cause of boot splits.

CV joint is a heat sink for the brake rotor. CV boots are asked to go from below
freezing temperatures to, at times, very high temperatures. The boots (and all
plastic and rubber parts) become more brittle and less pliable from heat cycling.

Ozone is a chemical element that destroys boots by dry rot. Ozone is every-
where and causes oxidation, or slowly burns, at a greater rate than oxygen.

My concern with silicon based product is that some grade may attract dirt and
will act like sandpaper when the pleats of the boot compress and flexes.

Dupont use Hytrel for boots. Neoprene, thermo plastic elastomer (TPE) and
other elastomers are common in most cars. If compatibility is a concern then
simply wash it off with mild soap and water, avoid using solvents that could
breakdown the boot.











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