Answer
Apr 11, 2022 - 07:46 AM
Generally speaking Heat Seal material doesn't have a specific shelf life, we have used material in the office that is near a decade old. However, things like heat/cold/humidity/dry can effect all materials used for customization. This is true from ink to thread to stabilizers. It's very possible if this material went through a period of extreme conditions, it could have damaged it. This could include anything in a non-climate controlled environment. Also, be careful about storing your goods in outdoor facing walls. We have seen customers have material damaged when hot/cold radiates through walls too.
