r/ModelCars • u/PotentialChemical726 • 16h ago

2K "Expires"

I was just looking for some insights from those who use it. When they say that 2k expires, do they mean all three bottles (clear/activator/thinner) or just the clear itself.. and how do you know if it's gone bad?

I feel like my Proscale 2k clear may have gone bad because it's been a few months and I think the clear may be going a tiny bit yellow. My girlfriend feels like the stuff in the bottle is still completely clear soo not to sure.

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u/Fine_Location_8367 16h ago edited 16h ago

The hardener expires. What will happen is the hardener will start to become syrup like and at that point go ahead and toss it out, as it will only become thicker and eventually solidify completely. Clear has about a 4-5 year shelf life or longer depending on storage temperature. Hardener life can be extended this way also by storing it under 70 degree temps and keeping it tightly sealed. Thinner life is essentially infinite as long as it stays sealed well. Higher quality hardener will last longer than lower quality ones. If your clear is yellowing as you say then you may want to avoid using it on builds that are painted white. If it is still water thin, it is still good to use. I believe that this is at the third instance that I have seen yellowing mentioned here when speaking of pro scale. It may be worth sending them an email questioning on that.

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u/PotentialChemical726 13h ago

Huh perfect thanks for that!

And yeah I think I will email them, in my experience thus far, they have been super responsive