Joining
Commonly used methods for joining polyethylene parts together include:
- Hot gas welding
- Fastening
- Infrared welding
- Laser welding
- Ultrasonic welding
- Heat sealing
- Butt heat fusion
Adhesives and solvents are rarely used because polyethylene is nonpolar and has a high resistance to solvents. Pressure sensitive adhesives (PSA) are feasible if the surface is flame treated or corona treated. Commonly used adhesives include:
- Dispersion of solvent-type PSAs
- Polyurethane contact adhesives
- Two-part polyurethane or epoxy adhesives
- Vinyl acetate copolymer hot melt adhesives
Read more about this topic: Polyethylene
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