These are from Ashley Falls, MA. Indicates (based on the label) that they may be reactivated indefinitely and has raised letters for instructions on the metal containers, 3 hours at 300 degrees. Each is good for 3 cubic feet and are recommended for gun safes and camera gear. It'll be wort a $20 try.
I placed it in my carry case and over the weekend it did not change colour. This either means there was no moisture in the case (impossible since I kept opening and closing it in humid Houston multiple times this weekend for some photography) or the gel pack is defective (very likely).
A major indicator was that this came in a clear plastic with no label or anything to indicate it was a Pelican product. Someone on the Amazon page has uploaded pictures of what the original product should look like and mine was not like it.
Mine came in sealed packs with the usual info. They are not marked Pelican but I'd have to go back read if it says it fits a Pelican or if it is from Pelican. It looks like what I recall seeing in the picture.
I wouldn't assume it should need to be dried out after one day.
Well, I put the pack in my lab which has a maintained humidity level of about 90% and no change in colour overnight. I am returning this crap tomorrow. Good thing Amazon has a fantastic return policy.
Who was your seller? I am assuming you got it on Amazon as well?
Mine says it will turn green when saturated and pink when dry, it arrived pink.
No rainforest research, but we work on production of metal nanoparticles by wet chemistry. It helps to keep the entire room humid to prevent the liquid precursors from "drying" out.
Since you left your desiccant in a 90% RH environment overnight, it is safe to assume, if it works at all, that it is saturated. How about sticking them into an oven to dry them out and see what color it turns into? Fun with colors.
