Wash the part in soapy water and then in clean water.
Clean the area to be repaired with a lint-free cloth soaked in antistatic solvent. Wipe the surface with a clean, dry, lint-free cloth.
Drill a hole at the end of the crack with a 4mm drill bit to stop it from growing further.
Increase the length of the crack by 2mm using an angle grinder or cutting tool.
Chamfer the edges of the crack on the outside with an angle grinder or a belt cleaner equipped with a P 120 matting attachment.
Polish the interior and exterior areas to be repaired with the P 150 nozzle.
Blow out the element with compressed air and clean the area to be repaired with the cleaner included in the plastic repair kit.
Apply the adhesive base included in the plastic repair kit to the inside and outside areas.
Let the adhesive dry (see technical product documentation).
Apply a piece of reinforcing tape (fabrics), The needed to repair the interior of the element.
Prepare a two-component repair mastic.
Extrude a narrow bead of adhesive along the areas to be repaired on the inside of the element and apply a reinforcing film (textile).
Squeeze a thick bead of glue onto the reinforcement fabric at the crack.
Level the surface with a spatula.
Squeeze a thick bead of glue onto the chamfer from the outside.
Level the surface with a spatula.
Let the two-component repair putty dry (see technical product documentation). Polish the outside with the P 150, then with the P 240.
Blow out the element with compressed air and clean the area to be repaired with a cleaner.
Apply finishing coat if necessary (see technical product documentation).
Sand the finishing putty with P150, then with P240.
Carry out the painting operation according to the material being processed.