MDRX8 said:
I have seen boats that sit out in the sun every day without a cover. I can tell you that the vinyl will fade and eventualy split open.
I wonder if that's directly analogous to automotive interiors (convertibles excepted) :think: It does seem like a good point with regard to rubber seals/etc. though.
I too see stuff that's exposed to the sun failing all the time, in a number of different situations. But automotive interior vinyl is possibly different stuff (made to better withstand UV/etc.) and there's the roof/glass blocking so much of that sunlight.
I'm sure not saying that I wouldn't keep an eye on things, and be prepared to use dressings, especially if I were parking outside 24/7. On the outside-always Volvo I used to have it was kinda funny what did/didn't suffer from the elements.
BostonBull said:
We only have the MANUFACTURERS gimmicks to go on. NO real tests. Why are we dropping huge money on things like 303, Zaino, Adams, Griots, etc that claim to block UV, resist fading, replenish moisture, etc etc when there are no tests to back up these promises?
Maybe you're just coming across as more contentious than you intend, but while I'm the first to assume hyperbole in any ad-copy, I dunno what "gimmicks" you're talking about, nor whether there have been any properly conducted testing or not. Seems like every manufacturer promises the moon and anybody in their right mind takes all such claims with a grain of salt.
While I don't use dressings, plenty of people like the shiny look of a freshly dressed interior, and OK, it's their choice and their money.
On older vehicles, the interior vinyl will absolutely dry out and crack without treatment. Different material from what they use today, and pretty fragile stuff. Thirty-forty years ago, vinyl interiors were always suffering from lack of attention, cracked vinyl dashboard pads were quite common...that's why stuff like ArmorAll took off so well when it first came out. It sure helped vinyl tops last longer, no question about that (heh heh, I'm dating myself...anybody remember all the [crap] they sold for vinyl tops?!?).
For that matter, *tires* usually look a lot better with dressings than they do without, though the Goodyears on my GMC are made to "stay black looking" without dressings and so far they're doing just that (which is completely different from the other tires on my other vehicles). Look at some abandoned tire sometime, one that's been outside and neglected for years; it'll be dry and cracked, and anything *but* a rich, satiny black. Yet treated tires, on vehicles that are outside 24/7 for years, will usually still look just like new. *Something* is working in those cases, though again, tires aren't necessarily analogous to interior vinyl.
Heh heh, sounds like I'm arguing both sides of this one, as happens from time to time!