Never seen this before.
wristpin
Thu, 01/11/2018
This transfer has survived on the fuel tank of a late 50s Suffolk. The stuff would appear to work as the inside of the tank is totally rust free.
.In 40 + years of involvement with Suffolks I've never seen it before.
The image fails to show ICI before Granodine , Googling it shows that a product of that name still exists in relation to other uses .
New to me, too.
New to me, too.
"Granodine 20 L is designed to produce a calcium modified zinc phosphate coating on iron and steel. Galvanized steel articles and zinc base die-castings can be treated in mixed production along with steel."
Trademark THERMOIL GRANODINE Registration Date: 1940-07-09