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Offline Unholz  
#1 Posted : 28 August 2017 15:12:19(UTC)
Unholz

Switzerland   
Joined: 29/07/2007(UTC)
Posts: 1,173
Location: Switzerland
Report in the German Stummi forum with regard to Marklin's SBB Eb 3/5 cat. no. 37195: https://www.stummiforum....=2&t=151642#p1719818
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Offline Eurobahnfan  
#2 Posted : 28 August 2017 17:40:25(UTC)
Eurobahnfan

United States   
Joined: 09/08/2008(UTC)
Posts: 274
Location: Stockton, CA
I have a few older Maerklin rolling stock pieces that have developed some slight warping, though nothing serious... and certainly nothing like this on my locomotives. I'm very careful about the environment in which my trains are stored or operated, but even then, you can't prevent something that's bound to happen as a result of poor construction. Not saying the newer stuff isn't of good quality, but with very few exceptions, I haven't purchased too many new items over the last few years.
Offline 5HorizonsRR  
#3 Posted : 28 August 2017 18:22:33(UTC)
5HorizonsRR

United States   
Joined: 05/12/2004(UTC)
Posts: 2,940
Location: NY, NY
I can't blow up the images- where were the issues on the locomotive? I have a 37136 I should probably check out.

I'm getting tired of having to fix these plastic-pest issues... (and zinc) US boxcars, Kof, ALl 3 of my seetal crocodiles...

FS + SBB Era 2-5 and Vintage Marklin
Offline mike c  
#4 Posted : 29 August 2017 02:54:38(UTC)
mike c

Canada   
Joined: 28/11/2007(UTC)
Posts: 6,560
Location: Montreal, QC
Is this the result of the plastic warping due to heat or other cause or is this another case of plastic damage from metal deterioration?

Regards

Mike C
Offline Tower  
#5 Posted : 29 August 2017 15:15:09(UTC)
Tower


Joined: 12/02/2010(UTC)
Posts: 165
Location: Pretoria, South Africa
I've had to bin at least 10 plastic US box cars due to severe warping. Al my wagons including the hopper car and the caboose from my 29570 American Starter set had to go, all were released around 2005. They were stored in their boxes in a cool area so I do not believe heat was the issue.

Very annoying!
Offline H0  
#6 Posted : 29 August 2017 16:11:01(UTC)
H0


Joined: 16/02/2004(UTC)
Posts: 13,661
Location: DE-NW
Originally Posted by: Tower Go to Quoted Post
I've had to bin at least 10 plastic US box cars due to severe warping. Al my wagons including the hopper car and the caboose from my 29570 American Starter set had to go, all were released around 2005.
That probably is real zincpest (Made in China stuff), not a plastic problem.
The metal frame distorts and causes the plastic body to break.

This here is a case of real zincpest (deforming metal):
UserPostedImage
Regards
Tom
---
"In all of the gauges, we particularly emphasize a high level of quality, the best possible fidelity to the prototype, and absolute precision. You will see that in all of our products." (from Märklin New Items Brochure 2015, page 1) ROFLBTCUTS
UserPostedImage
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Offline Eurobahnfan  
#7 Posted : 29 August 2017 17:08:28(UTC)
Eurobahnfan

United States   
Joined: 09/08/2008(UTC)
Posts: 274
Location: Stockton, CA
HO... wow: that's incredible! I don't recall seeing one quite like that, ever. The collector in me says to stick with finding those items made 20 years back or further -- at least then I can see if there are any issues present. It's hard to justify the price of some of the newer items considering you're left to wonder how they'll hold up.
Offline Minok  
#8 Posted : 29 August 2017 21:02:20(UTC)
Minok

United States   
Joined: 15/10/2006(UTC)
Posts: 2,149
Location: Washington, Pacific Northwest
The right kind/formula of aluminized zinc casting material is important. ... and outsourced makers will cut corners to save money without stringent oversight and testing. Its almost as if one has to take a sample from the liquid metal for testing every week to ensure no cheating.. its like the Olympics. Impurities in the mix are apparently the cause, that react to moisture in the air, and cause crystal formation/changes within the cast parts that then deform the parts.
Toys of tin and wood rule!
---
My Layout Thread on marklin-users.net: InterCity 1-3-4
My YouTube Channel: https://www.youtube.com/user/Minok1217/
Offline Tower  
#9 Posted : 30 August 2017 12:22:16(UTC)
Tower


Joined: 12/02/2010(UTC)
Posts: 165
Location: Pretoria, South Africa
Mine did exactly this, Is it Zinc Pest?

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Offline H0  
#10 Posted : 30 August 2017 13:40:55(UTC)
H0


Joined: 16/02/2004(UTC)
Posts: 13,661
Location: DE-NW
Originally Posted by: Tower Go to Quoted Post
Mine did exactly this, Is it Zinc Pest?
Yes, the floor of the cars is fine metal - it bends and eventually breaks the plastic body. Not a plastic problem, just the well-known China zincpest.

Regards
Tom
---
"In all of the gauges, we particularly emphasize a high level of quality, the best possible fidelity to the prototype, and absolute precision. You will see that in all of our products." (from Märklin New Items Brochure 2015, page 1) ROFLBTCUTS
UserPostedImage
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Offline TEEWolf  
#11 Posted : 01 September 2017 19:03:48(UTC)
TEEWolf


Joined: 01/06/2016(UTC)
Posts: 2,327
Originally Posted by: Tower Go to Quoted Post
Mine did exactly this, Is it Zinc Pest?


I do not know. But at Wikipedia I found a very interesting article (in English). This article shows a picture with wheels of a Maerklin coach having the zinc pest.

Zinc pest at Maerklin wheels
Offline Collector  
#12 Posted : 01 September 2017 19:51:53(UTC)
Collector


Joined: 17/08/2016(UTC)
Posts: 147
Location: Europe
Originally Posted by: Eurobahnfan Go to Quoted Post
HO... wow: that's incredible! I don't recall seeing one quite like that, ever. The collector in me says to stick with finding those items made 20 years back or further -- at least then I can see if there are any issues present.


You are not the only one. I don't want to find out 5 years down the line that the quality control in China sucked or at least was unable to spot things which come to light only years later!

DRG/DB/SBB Epoche II/III/IV
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Offline dickinsonj  
#13 Posted : 03 September 2017 02:30:23(UTC)
dickinsonj

United States   
Joined: 05/12/2008(UTC)
Posts: 1,283
Location: United States
It makes me wonder...

Edited by user 03 September 2017 14:21:25(UTC)  | Reason: Not specified

Regards,
Jim

I have almost all Märklin and mostly HO, although I do have a small number of Z gauge trains!
I have models from Era I to Era VI, but I try to focus on Eras I & III. Whoops, that one got away from me. Let's just say I focus on cool trains, regardless of the particulars :-)
So many trains and so little time.
Offline H0  
#14 Posted : 03 September 2017 08:43:52(UTC)
H0


Joined: 16/02/2004(UTC)
Posts: 13,661
Location: DE-NW
Originally Posted by: dickinsonj Go to Quoted Post
It makes me wonder [...]
This thread is about deformed plastic parts.

Please ask questions about real zincpest in appropriate threads like this:
https://www.marklin-user...boxcars---Zinkpest-today
https://www.marklin-user.../t347-What-is--Zinc-Pest
Regards
Tom
---
"In all of the gauges, we particularly emphasize a high level of quality, the best possible fidelity to the prototype, and absolute precision. You will see that in all of our products." (from Märklin New Items Brochure 2015, page 1) ROFLBTCUTS
UserPostedImage
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