Each factory had their own particular pattern/methodology for the application of Zimmerit but the general guide was as follows:
View attachment 193965
30] Protective coating for armoured full-tracked vehicles.
In order to prevent the attachment of magnetic adhesive charges, a protective coating of Zimmerit must be applied to the chassis of the Pz.Kpfw. III and Pz. Kpfw. IV, the Pz.Kpfw. Panther and Pz.Kpfw. Tiger, the Stu. Gesch., the Pz. Jäg. 38 for 7.5 cm Pak 40/3 (Sf) and the Pz. Jāg. Hornisse as well as the GW II, GW 38 and GW III/IV.
The following general guidelines apply:
a) All inclined and vertical armoured surfaces on the chassis and superstructure, including under the side skirts, receive the protective coating.
b) remaining without protective coating:
Side skirts, skirts on the superstructure, on the turret, turret or superstructure ceilings and command cupolas, hull floor, horizontal track covers, removable accessories and equipment parts, exhaust pipes, lamps and camouflage searchlights, etc., as well as the tank surfaces that are covered by permanently installed or removable mounted parts (e.g. running gear, accessories).
The protective compound is to be applied as follows.
1. Clean the Panzer surfaces to be painted thoroughly.
If a base coat is present, this must be thoroughly dry.
2. Apply Zimmerit thinly once with the spatula knife.
3. Apply the filler in a panelled pattern, i.e. in small squares with gaps of approximately 1/2 cm (Figure 1).
4. Allow the mixture to dry for 4 hours.
5. Burn with the blowtorch in such a way that the surface is hardened. Lightly brush the surface with the blowtorch, but do not hold it too close to the protective compound so that the coating does not burn (approximate distance).
6. Using the spatula knife, apply a layer approximately 4 mm thick in squares as shown in 2.
7. Use the spatula knife to groove the paint, i.e. press it in at very small intervals, so that a strongly corrugated surface is created (Image 2).
8. Allow the protective compound to dry overnight.
9. The next day, use the blowtorch to harden the surface again as described under step 5.
The following are guidelines for the need for Zimmerit:
StuG about 70 kg
Pz. Kpfw. IV about 100 kg
Panther about 160 kg
Tiger about 200 kg
Zimmerit should be used undiluted; the thinner supplied should only be added if it thickens. The filler coat can easily be sprayed over with the usual armour paint.
The packaging containers must be kept well closed; hardened mass must not be applied, as otherwise the coating will crumble. Opened containers must be covered with wet cloths or bags.
Zimmerit can be obtained from the Army Tank Equipment Office in Königsborn-Magdeburg or from the relevant tank spare parts warehouses.
Ο. Κ. Η. (Ch H Rüst and BdE), 12/29/43 76 g No. 16975/43 In 6 (Z/Ing).