2.2 Aluminium Surface
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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.