FP3000 Color differences between batches

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I have a 2 gallons of FP3000. One from the first offering in October (IIRC) and the second from last months offering. I noticed that the colors are significantly different (I think the point and shoot camera didn't do a great job of highlighting the difference - but you can see it). The one on the left is from October, the on on the right is from March.

My question is, does the FP3000 have a shelf life? Is the color an indicator of dye inconsistency or the breaking down of one of the components? The older FP3000 looks orange, the new stuff looks deep red - like ATF.

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I think the color is just dye. Maybe got a little heavy on the new batch. I never had any from the first batch, but my gallon I received last week is pretty dark.
 
I also have bottles from the very first run and a recent batch too- but the coloring in mine are virtually identical in both.

Another mystery.
 
Dyes are pretty strong, so a minute change in volume added to a batch is seen as huge. I would be more concerned about the paneling of the containers. Something is passing through the walls of these polyethelene containers. Perhaps they need to have these units flourine treated, or find a better packaging media.
 
So far I've had 6 gal containers of FP60, LC20, and FP3000, and the outsides of the contianers are all bone dry. However I did spill some FP60 on my countertop and after wiping with a paper towel and damp sponge there was still a persistance of product on the surface. Very slick and dispersive. So I do not think that any product is able to pass through the walls of the PE container, rather very small amounts leaked to the outside from transfer or spill will persist on the outside of the container. I would think this is one of the properties that make th e product so good in application.
 
jmac: I don't think that Rick20 has found FP on the outside of his container. I believe he's expressing concern that all of the containers get "sucked in" forming flat "panels".

Either something is leaving the container despite it being sealed and lowering vapour pressure, or there's a lot of thermal expansion and contraction of the FP inside, or something else...
 
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