Originally Posted by ghostrider
Everyone keeps citing "extreme cold" is what brings the marks back. Truth is, Pilot says temps of around 15ºF is all it has to be and in these parts, that's nowhere near "extreme". Some quilters claim they even came back at refrigerator temps...and that's a balmy 40-45º.
It does not have to be extreme cold just cold 40* will bring them back I can just see a kid doing his homework with it and the teacher puts it in a hot car during the early days of school, gets home to grade and the paper is blank. How do you explain that you have to put it in the freezer to read it?!! LOL