instructions for use

overview

Blackfasts' room temperature blacking process is a simple dip operation specifically designed for use in factories. The process does not materially effect dimensions and a uniform colouring is obtained over machined surfaces, threads and blind holes. Blacking is achieved by chemical conversion of the metal surface and the process entails degreasing, immersion in a surface conditioner, and blacking solution. Corrosion protection is afforded by a final immersion in a dewatering oil.

A typical blacking line would be configured as illustrated in the diagram to the right.

products available

• Iron & Steel Blacking Solution
• Antique Brass, Copper, Pewter Solution
• Antique Zinc Solution
• Degreasing Solutions & Powders
• Acid Pickling Solutions
• Alloy Wheel Strippers
• Dewatering Oils
• Rust Removers
• Paint Strippers

basic training : degreasing, conditioner & blacking

• Make sure the metal is really clean (a patchy black means it is not clean enough)
• Keep solution up to strength
• Keep solution > 15 ° C
• Don't overblack (if this has happened, wipe off smut before immersing into oil)

basic training: oiling

• Install a grill in the bottom of the tank
• Drain off displaced water
• Keep a separate basket for the oil tank or degrease the basket after use
• Allow enough time in the oil for water to be shed from the black surface
• Agitate small items
• Rotate those with complicated shapes
• Top up regularly
• Replace lids when not in use
• Allow components to dry before handling
• Don't allow oil to be wiped off component.

reference table for products