2.2 Aluminium Surface

2.2.1 Procedure for new aluminium component: 

• Do not grind/sand bonding surfaces. 

  Clean bonding surfaces with cleaning agent R1.

• Allow cleaned surfaces to dry for approx. 5 minutes.

  Bonding surfaces must be completely dry.

2.2.2 Procedure for previously bonded aluminium component: 

• Grind bonding surface with a metallic bright finish for better adhesion.
• Clean bonding surfaces with cleaning agent R1.
• Allow cleaned surfaces to dry for approx. 5 minutes.

  Bonding surfaces must be completely dry.

• Flame spray the surface:
• Go over the bonding surfaces slowly with the flame.
• Avoid flaming with the blue part of the flame.
• Condensation water appears on the area that is still uncoated. The condensation water in the line of the flame must evaporate completely.
• Directly after flaming, coat the still hot bonding surfaces (approx. 50 °C) with primer.

• Apply primer:
• Apply primer with a brush, cotton or similar item.
• Allow the coated surfaces to dry for approx. 5 minutes.