Recently, there was a thread on the Windshield Repair Forum discussing repairs in the frit band, or as the posted commodity calls it, the "Danger Zone." We'll hash out the purpose of the frit band and the challenges, if any, of doing a repair involving information technology.

What is the purpose of the frit?

It is a blackness enamel band that is baked into the internal surface of the glass and accomplishes two things;

  1. From the inside, it provides a surface that allows the urethane to bond to the glass.
  2. From the outside, information technology prevents UV rays from causing harm to the urethane used to concord the windshield in place.

The forum thread discusses ii minor difficulties while repairing fries or windshield crack repair in the frit.

Identifying the chips and cracks in that area:

  • Damage tin be difficult to spot in the black dotted ring area due to the black tint and dotted pattern. This makes it a challenge to see the light refract off the damage

Determining if the resin has reached the ends of cracks in that area:

  • Injecting clear resin into the frit band will announced black because information technology optically matches the glass. Information technology tin can be challenging to place if the resin has reached the ends of the cracks, or if information technology is flowing at all.

What is the purpose of the frit? It is a black enamel band that is baked into the internal surface of the glass and accomplishes two things; From the inside, it provides a surface that allows the urethane to bond to the glass. From the outside, it prevents UV rays from causing damage to the urethane used to hold the windshield in place

Challenges Repairing the Frit

These are challenges to be aware of, only certainly non something to exist overly concerned about. How do we as technicians handle these challenges? Make sure to inspect the glass, inside and out (including the frit band), closely. Observe whatever existing damage before get-go repairs. If yous happen to find impairment in the frit ring, it's of import to locate the cease of the crack. If the end of the crack extends under the urethane molding or to the edge of the glass, make certain to set expectations with your customer and allow them know that you can only fill and cure what you lot tin can see.

Information technology is possible that resin will not fill up all the way to the finish of the crack if it's under the molding. Fifty-fifty if it does, yous cannot cure it because the molding blocks the UV. As a full general dominion of pollex, if yous cannot see it, you cannot guarantee it.

For more information on repairing damaged glass in the frit band, requite the states a phone call and speak to a certified technician at 541-345-8554.