Mike:

Sorry I misunderstood the question.

You do not have to worry if you are using this for only a few hours prior to cleaning things up. Even in that short time-frame some of the latex may have dried, but it should cause no harm to the chrome in that short period of time. It can easily be cleaned up with Goop or even rubber cement solvent.

The reason that chrome is so compelling a material, is that the nickel in chrome has a very high density, and therefore very few things can "penetrate" its surface. Latex is not one of them.

So the issue is not really if latex bad for the chrome, but rather that latex is an impermanent fix for a damaged tire. Hope this clarifies things......Andras