How to Fix Broken Sunglasses with Colle21

Danilo CASU
Comment réparer des lunettes de soleil cassées avec la Superglue Multi-Usage Colle 21

How to repair broken sunglasses with Colle21

Sunglasses are often fragile and can be easily broken, but with the right method and adequate glue like the Super glue Cyanoacrylate Colle21, you can extend their lifespan without problem.

Necessary materials:

  • Cyanoacrylate glue, epoxy glue for plastic,
  • Clean cloth
  • Elastic or pliers

Detailed steps:

  1. Preparations:
    • Carefully clean the broken parts of sunglasses with a clean cloth to remove any dirt or residue. 

In-depth cleaning ensures a clean surface, essential for a maximum glue setting . 

Dirt and residues can prevent a Solid grip of the glue .

  • Make sure that the surfaces to be glued are dry and exempt from grease. 

Clean and dry surfaces allows the Cyano glue to fix effectively, reducing the risk of repair failure.

       2.  Glue application :

  • Apply a small amount of Colle21 specially formulated for plastic on the edges of the parts to be assembled.
Superglue Colle21 is designed for DIY, ensuring an optimal grip and sustainable repair.


  • Use a fine applicator for precise control of the glue application. A specific applicator makes it possible to uniformly distribute the glue, Avoiding excess that could affect the esthetic repairs

  1. Assembly:
    • Gather the broken parts of the glasses and hold them firmly together.  
    • Maintaining the parts in place with elastics or pliers during drying guarantees a correct and solid fixing.
    • Use elastic or pliers to keep the pieces in place while the glue is drying. 

This prevents parts from moving during drying, ensuring stable and effective repair.

  1. Drying time :
    • Let the glue dry completely for at least 12 hours to ensure solid and durable repair. Reason: full drying allows glue to harden completely, ensuring a robust and resistant repair.
    • Avoid manipulating the glasses during this period to allow complete drying. Reason: manipulating the glasses before the glue is completely dry can compromise the solidity of the repair.
  2. Cleaning after repair :
    • Wipe any overflow of glue with a slightly damp clean cloth before it dries. Reason: Remove the excess glue before it hardens facilitates cleaning and maintains a clean finish.
    • For dry glue residues, use fine sandpaper to delicately remove them. Reason: fine sandpaper allows you to polish glue residues without damaging the surrounding surfaces.

With Colle21, repairing broken sunglasses becomes a practical and economical solution, thus extending their use and allowing you to continue to enjoy the sun in peace.