How To Fix Plastic Sunglasses Arm

How to Fix Broken Plastic Sunglasses Arm
There's nothing worse than having a favorite pair of sunglasses and suddenly finding the plastic arm has snapped off. The good news is that repairing plastic sunglasses arms is a relatively easy DIY fix that doesn't require any special tools or expertise.
Here's a step-by-step guide on how to fix broken plastic sunglasses arms.
1. Determine the Type of Plastic
Before you start fixing your sunglasses, you need to identify the plastic material used. There are two types of plastic: thermosetting and thermoplastic. Thermosetting plastics, such as epoxy and phenolic resins, cannot be melted with heat. However, most sunglasses are made of thermoplastic materials, such as polycarbonate, which can be melted and reshaped.
2. Gather the Necessary Tools
To fix your sunglasses, you will need:
- A heat gun or hairdryer
- A pair of latex gloves
- A small clamp or clothespin
- Clear epoxy or super glue
- A small piece of sandpaper
3. Prepare the Broken Arm
First, clean the broken area with a damp cloth to remove any dirt or grease. Then, roughen up the surface of the arm near the break with sandpaper. This will help the glue adhere better.
4. Apply the Glue
If your sunglasses arm has a clean break, simply apply a drop of clear epoxy or super glue to the broken end of the arm. Hold the arm in place for a few minutes to allow the glue to set. For a more secure repair, place a small clamp or clothespin over the glued area and let it sit for 24 hours.
If the break is not clean, you can try melting the plastic with a heat gun or hairdryer to reform the broken edges. Wearing latex gloves, heat the plastic arm until it becomes pliable and reshape it with your fingers. Once you've shaped the plastic, use clear epoxy or super glue to hold the pieces together and let it dry for 24 hours.
5. Sand the Repaired Area
After the glue has dried, use a small piece of sandpaper to smooth out any bumps or rough edges. Be careful not to sand away too much, or you may weaken the plastic.
6. Enjoy Your Fixed Sunglasses!
With a little bit of effort and the right tools, fixing plastic sunglasses arms is a simple and cost-effective way to extend the life of your favorite shades. Plus, you can take pride in knowing you did it yourself!