How long does hot glue last?
You can store a glue stick indefinitely. You can heat it, cool it and reheat it as many times as you like. It will never deteriorate.
Does hot glue decompose?
That short answer is no. Despite what some manufacturers may say, hot melt is not that eco-friendly because it is derived from plastic. Most hot melt glues are composed of polyurethane, EVA, and polyolefin, all of which are not biodegradable.
Does hot glue break down?
It can be very strong but generally isn't, and in any case if it's supporting any significant weight at all, it will eventually break. It's great for crafts and as a quick fix for certain things, but you should not use it as a permanent adhesive.
What weakens hot glue?
Heat Resistance
A good general rule to follow is that as temperatures increase, the strength of a hot melt adhesive decreases. The adhesive will go through chemical changes that ultimately affect how well it will perform and can change its strength, elasticity, and stiffness.
Is hot glue permanent?
Can glue be permanent?
Is hot melt glue permanent?
What happens when glue gets old?