本帖最後由 sunday 於 2010-8-20 10:59 編輯
德佬 防磁板裝甲 Zimmerit 制作 ( 轉載 )
Applying Zimmerit
I cannot take credit for this great article. I downloaded it from a site that no longer exists.
I thought it was terrific and a great aid to modelers in general that I had to include it. The models you see in my Armor sectio used this technique to replicate the zimmerit and it worked great. I used Milliput Fine Grain epoxy putty which was not available at the time this article was written and might be more available than the RJ product mentioned here and worked great. So with credit noted here is the article reprinted with the gracious permission of the author.
Zimmerit - History and How-to
By Paul A. Owen
I do not think there is another word in model building that causes as much fear as "Zimmerit" does for modelers of WW2 German armour. Lets face it, no matter which method is used, it is seems difficult to pull off a good Zimmerit job. There have been several new and innovative products introduced over the past few years to make this job a little less troublesome. But first a little history may alleviate some of this fear.
Zimmerit History
Zimmerit was first made available during the summer of 1943 as a counter to magnetic and adhesive anti-tank mines. The British had an adhesive "sticky bomb" for this purpose, and the Germans had lost several panzers to it during the attacks on France and the Low Countries, Greece and North Africa. The Soviets may have received these sticky bombs from Britain as part of the Lend-Lease agreements. In addition, the Germans' themselves had a shaped charge magnetic AT mine and it was a common German practise to develop a counter to weapons which they themselves possessed.
Most popular modelling literature has stated that zimmerit was a plaster or concrete, however this is not correct, according to a British war-time report, "'Zimmerit', Anti-Magnetic Plaster for AFVs", (reported by Major J.W. Thompson and Mr. C.E. Hollis, July 1945). In fact, zimmerit was a mixture of polyvinyl acetate, 25%, which formed the matrix, 10% saw dust used as a filler. Additionally Zimmerit included 40% barium sulphate and 10% zinc sulphide in the mix, but the report did not state why. Its dark yellow colour was achieved with the addition of 15% ochre pigment. Zimmerit was developed in Berlin by the C.W. Zimmer Company, (this was where Zimmerit got its name), it was ready for use in the summer of 1943.
Zimmerit was applied to all tanks and closed top SP guns but rarely to anything else, however, there are photographs of a Marder III Ausf. M and a Sd. Kfz. 251 Ausf. D with zimmerit. Application was done at the factory, but it appears that many vehicles received field applications before zimmerit was actually available. There were orders issued late in 1942 that outlined several temporary measures for use before production zimmerit became available. Including the field application of readily available materials such as concrete, thick coatings of mud, and in winter conditions, thick build-ups of ice, (which would make an interesting model). This explains the variety of zimmerit patterns and applications on odd vehicles during the first half of 1943.
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