How to Repair Broken Eyeglass Frames With Silver Solder

Written by mary lougee
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How to Repair Broken Eyeglass Frames With Silver Solder
Eyeglass frames can be repaired with silver solder. (eyeglasses image by timur1970 from

Eyeglass frames have earpieces that fold up to close them when they are not in use. The repeated actions of putting glasses on and off causes stress on the frame. Bumping your glasses on things while working, accidentally sitting or stepping on them or leaving them where the family pet finds them can result in broken eyeglass frames.

Skill level:

Things you need

  • Screwdriver for eyeglasses
  • Small piece of metal wire
  • 2 inches of copper wire
  • Alligator clips
  • Vice
  • Cotton swab
  • Flux
  • Soldering iron

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  1. 1

    Disassemble the eyeglass frames by removing the earpieces and the lenses. Some earpieces have small screws to remove in order to separate them.

  2. 2

    Place a small piece of metal wire on the area of the break in the eyeglass frames on the inside of the frames. This piece of wire will reinforce the broken area. Place alligator clips on each side of the wire to hold it together.

  3. 3

    Wrap a two-inch piece of copper wire around the junctions to hold the pieces together. Remove the alligator clips.

  4. 4

    Place the eyeglass frame in a vice and turn the handle to hold the frame steady without over tightening it and bending the frame.

  5. 5

    Dip a cotton swab into paste flux and apply a generous amount to the repair area including the metal wire and each side of the broken frame.

  6. 6

    Plug a soldering iron into an electrical socket and wait for it to heat. This usually takes two to three minutes and most models have a light that illuminates when it is hot. Hold a piece of silver core solder so the tip touches the repair area.

  7. 7

    Touch the tip of the soldering iron to the solder and squeeze the trigger to melt the solder onto the repair area. Continue this process to cover the metal wire and both sides of the broken frames with solder.

  8. 8

    Let the frames cool and remove them from the vice. Unwind and remove the copper wire from the frames. Reassemble the lens and earpieces onto the frames.

Tips and warnings

  • Flux helps soldered pieces stick together by keeping oxygen from oxidising the metal.
  • You can use a micro torch in the place of a soldering iron.

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