What is the best glue for plastic?

When it comes to choosing the best glue for plastic, it largely depends on the type of plastic and the intended use of the item being repaired. Here are some common types of adhesives that are considered best for plastic:

  1. Cyanoacrylate (Super Glue): This is a quick-bonding adhesive that works well on a variety of plastics, including polystyrene, polyethylene, and PVC. It forms a strong bond within seconds and is best suited for small repairs.

  2. Epoxy: Epoxy adhesives are versatile and can bond almost any type of plastic. They offer a strong, durable bond that can withstand heat and moisture. Epoxy works well for larger repairs and projects.

  3. Polyurethane: Polyurethane adhesives are known for their flexibility and resistance to impact and vibration. They work well on most types of plastics and can create a strong, permanent bond.

  4. Silicone: Silicone adhesives are flexible and resistant to heat, making them ideal for applications where the bond needs to withstand high temperatures. They work well on flexible plastics and are also waterproof.

It's important to read the manufacturer's instructions and follow the recommended application methods for the best results when using plastic adhesives. Additionally, proper surface preparation and cleaning are essential to ensure a strong bond between the adhesive and the plastic.