Henkel Alodine 600 Conversion Coating (Ready To Use) - MIL-C-81706

Chemical: Alodine 600-RTU

Bath preparation per 100 gallons: Used as received without dilution.

Operation and control

Time: 1 - 5 minutes

Temperature: 70° to 100° Fahrenheit

The Process

The complete process normally consists of the following steps:

1. Cleaning
2. Rinsing
3. Treating with Alodine 600-RTU processing solution
4. Rinsing
5. Drying

The work, after drying, is ready for use either painted or unpainted.

Material

Alodine 600-RTU

Equipment

The work is processed in conventional spray processing equipment. The equipment for the ALODINE coating chemical should be constructed of stainless steel (Type 316 preferred for weldability) or other suitable acid-resistant material, but no lead or glass.

All heated tanks should be equipped with steam plate coils and side heating (preferred for a more even temperature distribution) or other heat sources capable of heating the bath to the specified temperature.

Acid-resistant crates, baskets, tumbling barrels, or conveyors, etc., should be provided to carry the work through the various stages.

NOTE: Detailed equipment specifications for a particular processing line should be obtained from your technical representative.

Surface Preparation

Cleaning: All metal to be treated with the processing solution must be free from grease, oil and other foreign material before treatment. A complete line of cleaners is available. Our representative will recommend the proper cleaner for your processing needs.

Water rinsing: After cleaning, the metal must be thoroughly rinsed with water. The rinse should be overflowed continuously at a rate which will keep it clean and free from scum and contamination.

Treating with the Alodine 600-RTU Processing Solution

Each alloy reacts with the ALODINE 600-RTU conversion chemical bath to produce a coating that is characteristic of that alloy. For the treating time selected, the bath should produce a light iridescent gold to tan coating on aluminum.

The data contained herein are normal for most installations; however, your technical representative may suggest a deviation from this data if indicated by production conditions.

If the ALODINE coating is powdery, the cause may be one or more of the following:

1. The work has been improperly cleaned and/or rinsed.
2. The coating time is too long.
3. The bath temperature is too high.

If the ALODINE coating is too light, the cause may be one or more of the following:

1. The treating time is too short.
2. The temperature of the bath is below the specified range.

Operation:

Time: 15 to 30 seconds.

Temperature: 70° to 100° Fahrenheit.

After Treatment

Rinsing and drying: Unreacted coating chemical should be removed by one of the following methods:

1. Flush the work thoroughly with clean water followed by (a) air drying; (b) blowing dry with compressed air; (c) warm or hot air drying; or (d) wiping dry with clean cloths.
2. Wipe with water-damp cloths followed by wiping dry with clean cloths.

Any seams, joints and crevices should be blown dry with clean, dry, compressed air and the moisture splatters wiped dry with clean rags.

Storage Requirements

This chemical should be stored indoors away from alkaline and organic materials. Do not allow ALODINE 600-RTU to freeze. Do not store with chlorine containing materials.

Waste Disposal Information

Applicable regulations covering disposal and discharge of chemical should be consulted and followed.

Disposal information is given on the Material Safety Data Sheet for this product.

The solution is acidic and contains hexavalent chromium and fluoride. Waste treatment and neutralization may be required prior to discharge.

Precaution

lt the appropriate Material Safety Data Sheets for safety and handling guidelines for the products listed in this bulletin.