Adhesive Surfaces, Preparing: Notes

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Pre Cleaning

Remove solid layers like dirt, rust, paint coats (CDC).

Cleaning

To prevent spreading possible grease residue when grinding down afterwards, clean the adhesive surfaces with a lint-free cloth, soaked with isopropyl alcohol or acetone. Allow the cleaned surfaces to ventilate for 15 minutes.

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Grinding Down

To improve adhesion, grind down the adhesive surfaces with grid 150 to 180 sandpaper. Use crossover griding process.

Only use sanding material based on silicon carbide (SIC) for grinding down the adhesive surface.

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Cleaning

NOTE:

After the last cleaning procedure the adhesive must be applied within four hours, to prevent contamination as well as the formation of an oxide coating on the aluminum material. Repeat the preparations after four hours without application of the adhesive.

Afterward clean the bare metal adhesive flange areas with a lint-free cloth, soaked with isopropyl alcohol or acetone, until no residue is visible on the cloth.
Allow the cleaned surfaces to ventilate for 15 minutes, the adhesive surfaces must be completely dry.

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Processing Conditions

The ambient and material temperature when processing, must be at least "minimum temperature 15 °C" and a most "maximum temperature 35 °C (95 °F)".

Higher processing temperatures reduce the processing time.

Processing time at 15 ° C (59 °F) 80 min

Processing time at 18 ° C (64.4 °F) 75 min

Processing time at 20 ° C (68 °F) 65 min

Processing time at 23 ° C (73.4 °F) 60 min

Processing time at 25 ° C (77 °F) 50 min

Processing time at 30 ° C (86 °F) 40 min

Processing time at 35 ° C (95 °F) 30 min