>There are several Armorall products. The preservative is just that and
>will not destroy vinyl or other plastics even when applied to automobile
>dashboards etc (subjected to heat, sun and cold).

How do you know this?

>The Armorall cleaner
>will mess up certain plastics. I have shells that have had the preservative
>applied for 12 years and they are just fine.
>
>Emilio Jorge Power

It MAY not damage shells, but I would be unsurprised if it DOES
damage car plastics. I'm making inquiry into this now.

It is certain that some products are marketed for purposes they were
NOT dedigned for, against the original developer's desires (Motor Up,
Slick 50) and these named items DO SERIOUS DAMAGE when used for the
advertised purpose.
--
Andrew Grebneff
165 Evans St, Dunedin 9001, New Zealand
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Seashell, Macintosh, VW/Toyota van nut