Panthers of the Panzer Lehr division Normandy 1944 ...
taken from fb/History of WW2

Panthers

According to a  British investigation Zimmerit coating consistent of 25% Polyvinnyl acetate, 10% wood fiber,40% Barium Sulate,15%Sink Sulfur, and 10% Loess.
taken from fb

Zimmerit

Panther Ausf G.
 Mountings and electrical connectors for the infra-red searchlight were mounted on the side of the gun mantlet.One can also see the rather crude way of applying the Zimmerit paste.
taken from fb/Tank Chaser