What does hot melt glue not stick to?
May 26, 2023
Hot melt glue, also known as hot glue, is a versatile adhesive that is used in a wide range of applications. It is a thermoplastic adhesive that melts when heated and solidifies when it cools down. Hot melt glue is widely used because it is easy to use, dries quickly, and provides strong bonding. However, there are some surfaces that hot melt glue does not stick to. In this article, we will discuss what hot melt glue does not stick to.
1. Non-stick surfaces
Hot melt glue does not stick to non-stick surfaces such as Teflon, silicone, or wax paper. Non-stick surfaces have a low surface energy that makes it difficult for the hot melt glue to adhere to them. If you need to glue something to a non-stick surface, you will need to use a different type of adhesive.
2. Porous surfaces
Hot melt glue does not stick well to porous surfaces such as wood, paper, and fabric. Porous surfaces absorb the hot melt glue, which reduces its bonding strength. If you need to glue something to a porous surface, you may need to use a primer or a different type of adhesive.
3. Moist or wet surfaces
Hot melt glue does not stick well to moist or wet surfaces. Water or moisture can reduce the bonding strength of hot melt glue. If you need to glue something to a moist or wet surface, you will need to dry the surface first or use a different type of adhesive.
4. High-density polyethylene (HDPE)
Hot melt glue does not stick well to HDPE. HDPE has a low surface energy that makes it difficult for the hot melt glue to adhere to it. If you need to glue something to HDPE, you will need to use a different type of adhesive.
5. Metal surfaces
Hot melt glue does not stick well to metal surfaces. Metal surfaces have a high thermal conductivity that makes it difficult for the hot melt glue to solidify and bond. If you need to glue something to a metal surface, you may need to use a primer or a different type of adhesive.
In conclusion, hot melt glue is a versatile adhesive that is used in a wide range of applications. However, there are some surfaces that hot melt glue does not stick to. Non-stick surfaces, porous surfaces, moist or wet surfaces, HDPE, and metal surfaces are some examples of surfaces that hot melt glue does not stick to. If you need to glue something to one of these surfaces, you will need to use a different type of adhesive.
