On my 56 ford Victoria I am restofying Im stripping the P.O primer and going down to bare metal to see what im dealing with .Ive have come across this gray looks like cement stuff over low spots and weld areas.I don't know what it is but I bought the car from a body shop owner in SAN Antonio ,TX.Either way im removing it.
There is a body filler called All-Metal that has aluminum powder in it and it's grey and looks like that.
Probably is All Metal brand filler. It is polyester filler that is loaded with aluminum dust instead of the stuff in Bondo. It uses a clear hardener so when it sets it looks like aluminum and cures a lot harder than Bondo.
If it's been in there since the 60's or 70's it could be "Black Knight" body filler. It was a medium/dark gray after it hardened.
YEAH,My guess is all-metal. It has hairline cracked in someareas and its a bear to sand ..I know LEAD its not lead.
In the 60's I remember a body filler called "Blackmagic". It was black when you put it on and turned grey when sanded.
The first body filler I used back in the 60s used a powdered hardener and was light grey when set, but more than likely it's all metal.
Knew an old timer who made and sold body filler in the 50s when it first came out. His formula was polyester resin and portland cement mixed in a cement mixer. Maybe it's some of his stuff. The filler we got in the sixties was gray, very heavy and hard to file and sand. It was probably made of cement.
I picked up a 56 chebbie sedan around 1962. It had been hand-painted ins***utional green, but it had a V8. So one day, after it had set in the yard for 6 months or so, I got to thinking I needed to either get it fixed up to sell, or pull the engine. And then I noticed a chunk of body popping away by the trunk. It was black and co****. So I asked the seller ( a neighbor) what he had filled it with. "furnace cement" he said.
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