i used a product called lizard skin for interior roof, nice sound deadening job but not sure about heat trapping being our car is not yet done and out on the road. maybe google the product and investigate, ask manuf or dealer? wish you luck.Looking for recommendations for good brand of under hood insulation for my 56 210. Anybody tried Acousti Shield? I also wonder if the insulation would trap heat in the engine department?
More than likely Bill...I worked at a car dealership in MA in the mid 60's and a company called Ziebart used to do a bunch of them.Here is a photo at the beginning of the restoration. You can see the undercoating on the hood. This was a New England (Mass) car and I was the second owner. I wonder if the undercoating was put on by the dealership, and they did the hood.