Cold blackening solution BLACK NIGHT 1l

Application

The workpieces have to be thoroughly degreased and free from tinder, oxides. Greasy and oily soilings of the surface can be cleaned by using an alkaline or solvent­containing bath, e.g. DEAGREASER D 40, ORANOL, ETHYL ACETATE and similair.

Preparation of solution and procedure of cold blackening

For low alloy steels (normal construction steel, etc.), the blackening concentrate should be diluted with water to a proportion of 1:3 and let work in for 3 to 5 minutes.

For steels with a chrome content of under 3%, it should be diluted in ratio 1:2 and let work in for 6 to 8 minutes.

For steels with a chrome content of 3% to 12% and for steels with a nickel content of up to 0,6%, the undiluted concentrate can be used while letting it work for 8 to 10 minutes.

Dip the prepared objects in the blackening solution at room temperature for a.m. times.

Washing of the objects after the first treatment is recommended, the surface should be wiped with a cloth and the blackening treatment should be repeated at least one more time. With that procedure, deeper blackening effect will be reached.

After drying, the protective wax IROWAX -100 can be applied by dipping or coating.

Safety

Causes severe skin burns and eye damage. May cause an allergic skin reaction.

Harmful to aquatic life with long lasting effects.In case of contact with eyes rinse cautiously with water for 15 minutes. Remove contact lenses, if present and easy to do. Avoid breathing dust/fume/gas/mist/vapours/spray. Wear

protective gloves/protective clothing/eye protection/face protection. In case of contact with skin wash with plenty of soap and water. Avoid release to the environment. Dispose of contents/container to adequate disposal.

Avoid contamination. Do not use on aluminium, toxic hydrogen selenide may be released.