Hi all, long time lurker, first time poster.
I have been storing my broken down sets in original boxes inside of Zip Lock bags (1 Gallon and Sandwich ones, obviously brand new clean bags). I recently acquired 9446 set and was sorting the pieces, the brown plates are insanely brittle, have no flex at all and even a tiny bit of pressure from the disassembly tool is enough to snap off pieces of plastic and snap plates in half. To make it more clear, they are so brittle that if I laid a plate on the floor and dropped another one on top of it from a few feet up they would both shatter into a thousand pieces.
I dont know the history of the set, so I assumed sun exposure. However none of the pieces are sun bleached and only the brown pates are affected, all other pieces are fine.
Anyhow, this got me googling about proper LEGO storage (long term). And I was surprised to find a thread saying that Zip Locks and other food grade bags are a bad idea due to LEGO reacting with the plastic those bags are made of. This was the discussion --> https://www.eurobricks.com/forum/index.php?/forums/topic/142101-safety-of-long-term-minifigpart-storage-in-plastic-bags/
So I just placed an order for a bunch of 100% Polypropylene (LDPE) bags that are meant for comic books. It seems like they should be a good way to store LEGO. Right?
What do you guys use and has anyone used Zip Lock 1 Gallon and Sandwitch bags for 10+ years without issues?
If the brown pieces are the current reddish brown, there are many documented instances of brittle and cracked pieces in this color (from these very forums and elsewhere). The issues are known from brand-new parts right out of the box. Even LEGO knows about this (and they always seem to be the last to know...). The formulation for the reddish-brown pieces, and possibly the manufacturing process and industrial storage at the molding facility, is the likely culprit for your issue.
That said, any type of storage material meant for archival storage can't be bad for LEGO storage either, I would imagine.
As of 2018 this issue with New Dark Red/Reddish Brown/Dark Brown should be resolved. With just 2-3 exceptions, all dark/reddish brown pieces in your 2014 #9446 Destiny's Bounty have been in sets in recent years, so if you reach out to Lego CS they will probably send you replacements.
I have not had an issue with storing my used Lego in Zip-Loc bags. I have 100's of tires in bags and they are perfectly fine.
Point is, unless you store them in direct sunlight or extreme temperatures, I don’t think you’re going to cause much damage to the elements outside what they’re already prone to (ie the reddish brown issue already mentioned).
Don’t sweat it!
The issues with brittle brown (and some other colors) have been recently fixed. The LEGO element quality team made the following statement, shared at the LEGO Ambassador Forum:
“The LEGO Group has been working hard to address reported issues with reddish-brown bricks becoming brittle and breaking under use. The issues have been identified and we are happy to announce that they have been fixed. The fixes were put in place earlier this year for the LEGO colors #154 (new-dark-red), #192 (reddish-brown) and #308 (dark-brown). We waited until now to make the announcement, as we wanted to be 100% certain all issues had been addressed and fixed. If you, at any time, have a LEGO element which doesn’t live up to the standard you’d expect from us – then please don’t hesitate to contact LEGO Customer Service and we will send you replacement parts. We are terribly sorry for the inconveniences this has caused our loyal LEGO Fans across the World.”
Would explain what happened to these minifigures that were opened last month from a retired set. People may want to check their minifigures for defective brownish parts before some parts become retired.
There's a photo over here of the sets assembled after I got them home. They are still on display in the living room, still carrying the dust from 30 years of storage.
So presumably he's only human if he agrees that Market Street is a Modular, right?
If fingerprint oil were going to cause a problem, my oldest bricks should be in terrible shape! They're very scratched, but otherwise okay.