This is what I hear from many of the Pro's:
"Dap (Weldwood) spray grade Landau Top adhesive. Do not be tempted to use anything from a rattle can."
It is for high temperature (as in a roof) use. Shipping is expensive because it is considered hazardous. They recommend finding a local top shop.

Brad

Check out the Dorn's 69 Barracuda "Switchblade" in the Nov.2010 MCG
Check out the Dorn's refurbished 36 Ford in the Feb.2011 Street Rodder