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G 800 Issue - White crusty growth on tender
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Offline jeffd  
#1 Posted : 10 November 2017 16:05:42(UTC)
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jeffd

United States   
Joined: 06/08/2017(UTC)
Posts: 37
Location: Virginia, Arlington
I am a new Marklin collector and am lucky enough to have a G 800 locomotive. While the locomotive is in excellent condition there is some white crusty growth that appears to be eating away at the tender. This is the condition I got it in and it had been stored behind glass in a dry (dehumidifier running round the clock) basement for many years and there are not any similar problems with any of the other trains. I tried some isopropyl alcohol in a small test area and it looked like it helped until it dried.

I want to save this beautiful piece so if anyone can provide some assistance in fixing this problem, I would greatly appreciate it.


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Offline Markus Schild  
#2 Posted : 10 November 2017 21:33:10(UTC)
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Markus Schild

Germany   
Joined: 14/01/2006(UTC)
Posts: 1,802
Location: Wurttemberg
Hi Jeff,

First: There is nothing to save. If the model is stored in a dry place nothing will change. It will remain in this state. What you see is mainly magnesium-oxide.

Some people recommend WD40 or similar oils to clean this. But such penetrating oils like also to loosen the painting by moving under the painting. You can try to clean it up with petroleum -or better- liquid paraffin. But do not expect miracles. The other way is a complete restoration done by a specialist using original colours. But you will exchange an original tender to just another restored tender. I prefer the original, also if it's not in mint condition.

Regards

Markus
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Offline jeffd  
#3 Posted : 11 November 2017 00:13:31(UTC)
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jeffd

United States   
Joined: 06/08/2017(UTC)
Posts: 37
Location: Virginia, Arlington
Thanks Markus, seeing I have no interest in using anything that may remove the original paint it looks like I need to find some liquid Paraffin to gently try to clean up what I can.
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Offline MalinAC  
#4 Posted : 11 November 2017 10:09:41(UTC)
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MalinAC

Ireland   
Joined: 29/05/2014(UTC)
Posts: 839
Location: DONEGAL, CARNDONAGH
Hi Jeff, I had good results using WD40 on my G800 tender which got almost all the white off. Still have to find a coal load for it. Eddie
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Offline jeffd  
#5 Posted : 11 November 2017 17:41:54(UTC)
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jeffd

United States   
Joined: 06/08/2017(UTC)
Posts: 37
Location: Virginia, Arlington
Thanks, Eddie. I will have to do a small test area with WD 40 and see how it goes. It sure would be nice to get it cleaned up so thank for your thoughts !

Jeff
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Offline Markus Schild  
#6 Posted : 11 November 2017 17:49:37(UTC)
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Markus Schild

Germany   
Joined: 14/01/2006(UTC)
Posts: 1,802
Location: Wurttemberg
Hi Jeff,

You can try it. It will work. But damages caused by WD40 need years to be obvious. More than 20 years ago I cleaned up some MODELLGLEIS with WD40. I was happy with the look until I unpacked the tracks about 15 years later. The WD40 has done its work. The complete color was loose on the metal. You could just swipe it away. This does not happen every time. But I cannot say in which cases.

Regards

Markus
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Offline MalinAC  
#7 Posted : 11 November 2017 19:08:30(UTC)
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MalinAC

Ireland   
Joined: 29/05/2014(UTC)
Posts: 839
Location: DONEGAL, CARNDONAGH
Hi Markus, I guess I will have to watch my G800 tender and see if anything happens to the paint. So far its good but I only used the WD40 about 10 months ago. Eddie
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Offline Pmare4  
#8 Posted : 12 November 2017 01:23:46(UTC)
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Pmare4

Australia   
Joined: 15/10/2015(UTC)
Posts: 237
Location: Brisbane, Queensland, Australia
Hi,

Good point Markus, but I think the 3900 tracks are lithographed, not painted like the G800 tender.

regards
Peter
Peter
Collecting vintage Märklin from 1935-1970, also Hornby O Gauge
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Offline Markus Schild  
#9 Posted : 12 November 2017 09:29:48(UTC)
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Markus Schild

Germany   
Joined: 14/01/2006(UTC)
Posts: 1,802
Location: Wurttemberg
Hi Peter,

I know that such disasters are also reported from hand-painted cars from the first half of the 20th century. I never experienced such personally, but I have no idea how determine when it happens. But be careful.

Regards

Markus
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Offline Pmare4  
#10 Posted : 12 November 2017 09:57:01(UTC)
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Pmare4

Australia   
Joined: 15/10/2015(UTC)
Posts: 237
Location: Brisbane, Queensland, Australia
Hi all,

I think paint lifting with WD40 is generally (but not always) confined to tinplate items, particularly those which weren't primed.

Even so, WD40 leaves a thin greasy residue which I've found impossible to remove without damaging the finish underneath. So yes... as Markus says, be careful!

regards
Peter
Peter
Collecting vintage Märklin from 1935-1970, also Hornby O Gauge
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