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ALUMINIUM BLACKING SOLUTIONS

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THE PROCESS:

The process entails components to be firstly degreased in BF716, followed by etching BF517 , and then immersion in both a surface conditioner BF451 and then blacking solution BF481. Corrosion protection is afforded by a final immersion in dewatering oil BF833. After which the components are left to air dry.

A typical line would be configured as below:

STEP 1

Blackfast 716 light alkaline degreaser
Dilution: 1part solution : 1 part water
Op. Temp: >15ºC
Immerse for 15 – 20 minutes

STEP 2

Water rinse
Immerse for 30 seconds

STEP 3

Blackfast 451 conditioner
Dilution: 1 part solution : 3 parts water
Op. Temp: >20ºC
Immerse for 40-60 seconds

STEP 4

Water rinse
Immerse for 30 seconds

STEP 5

Etching – Blackfast BF517
Dilution: 1 part solution : 9 parts water
Op. Temp: >15ºC
Immerse for 2-3 minutes

STEP 6

Water rinse
Immerse for 30 seconds

STEP 7

Blackfast 451 conditioner
Dilution: 1 part solution : 3 parts water
Op. Temp: >20ºC
Immerse for 30-60 seconds

STEP 8

Water Rinse
Immerse for 30 seconds

STEP 9

Blacking – Blackfast 481
Dilution: 1 part solution : 3 parts water
Op. Temp: >20ºC
Immerse for 30-60 seconds

STEP 10

Water rinse
Immerse for 30 seconds

STEP 11

Dewatering – Blackfast 833
Neat Dewatering
Immerse for 5-10 mins

STEP 12

Air Dry

APPLICATION DATA SHEETS

View complete technical information on how to effectively apply the various relevant solutions for your blacking production line.

  • Degreasers
  • Conditioners
  • Blacking Solutions
  • Dewatering Oils
SAFETY DATA SHEETS

Information for the safe handling of both Supplied (Concentrated) and Working (Diluted) Solutions.

  • Degreasers
  • Conditioners
  • Blacking Solutions
  • Dewatering Oils
SOLUTION STRENGTH TESTS

In each of the guides on this page, you’ll find testing processes based on proven tests for checking and adjusting the strength of our solutions

ROOM TEMPERATURE BLACKING OF ALUMINIUM:

Blackfast’s Aluminium blacking process is a simple dip operation specifically designed for use in factories.

A uniformed colouring is obtained over machined surfaces, threads and blind holes. Blacking is achieved by the chemical conversion of the metal surface.

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GOT A QUESTION?

We are here to help. Please contact us should you require more information or would like to book a demonstration. Telephone 020 8339 7370.

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