Phosphating and blackening

Iron phosphate SG-301

The iron phosphating SG-301 is a liquid iron phosphating and degreasing agent for spraying applications. The generated phosphating layers obtain good corrosion protection and an excellent primer for the subsequent paint or powder coating. The process can be used in the dipping or spraying processes.

Zinc phosphate SG-526

Zinc Phosphate SG-526 is a low-sludge generating zinc phosphating agent. The generated zinc phosphate layers are dense, fine-crystalline and dark. Depending on the concentration thin and thick zinc-phosphate layers can be produced. Addicted to the ground material an activation step or an addition of the Booster SG-ZnP may be necessary. An empirical pretesting is recommended. Working temperature: 70 ± 5 °C

Zinc phosphate SG-650

Zinc phosphate SG-650 is a nickel-free low-sludge generating zinc phosphating agent. The SG-650 zinc phosphate layers are dense, fine-crystalline and dark.

Working temperature: 60 - 80 °C

Manganese phosphate SG-N

The manganese phosphate SG-N produces dark gray-black manganese phosphate layers on iron and steel and is characterized by its easy bath management. Layer thickness, crystal structure and degree of blackening depend on the ground material and its previous processing (for example hardened). The manganese phosphate SG-N is used as corrosion protection in combination with conservation agents:

- for decorative purposes with simultaneous rust protection, if the corrosion protection is not sufficient with usual blackening layers and thicker layer are possible.

- as sliding phosphating layer to reduce wear on moving machine parts (for example hitch or wheels).

- as base for lubricants and subsequent coatings

Process temperature: 95 °C - 98 °C

Manganese phosphate SG-5556

Manganese phosphate SG-5556 is a phosphating agent to produce dark gray/black manganese phosphate layers on iron and steel. Designed to produce medium and thick manganese phosphate layers it requires a activation process. The layer thickness depends on the type of pre-activation and the bath parameters of manganese phosphating. It is used:

- as corrosion protection in combination with suitable anti corrosion oils.

- for decorative purposes with simultaneous rust protection, for example: if the rust protection is not sufficient with conventional blackening layer and thicker layers are allowed.

- as sliding phosphating layer to reduce wear on moved machine parts or as a primer for lubricants

- as a primer for subsequent coatings

Make up: 10 liters of manganese phosphate SG-5556 per 100 liters of bath volume

Blackening salt SG

The blackening salt SG is a universal product for rust-protective blackening of low to high alloy steels - rolled or drawn - including hardened material. The resistance of the layer without oiling reaches up to 72 hours in the condensation test according to SK DIN 50017.

Blackening salt SG-D

The Blackening salt SG-D is a quick dipping process and is suitable for even blackening of steel, iron and carbonated surfaces. It particularly improves blackening of sheet metal, rolled and dawned material as well as tools, drills, weapons and other problem parts. The use of Blackening salt SG-D provides unconditional dimensional stability and good corrosion protection values. The spray protection creates an improved working environment and reduces annoying itching. The generated layers are resistant to bending and abrasion and have a smooth, structure-less appearance. SG-D must not be used for light metals, zinc and zinc alloys.

Blackening salt SG-5501

Blackening salt SG-5501 is a powdered product for blackening of metal surfaces. It is a quick dipping method according to DIN 50938. SG-5501 is suitable for uniform blackening of steel, iron and carbon-nitride surfaces. Particularly improving blacking on sheet metal, rolled and drawn material. The use of Blackening salt SG-5501 provides dimensional stability and good corrosion protection. The layer is resistant to bending and abrasion and has a smooth, structure-less appearance. SG-5501 processes are thin fluid and sludge-poor. Blackening salt SG-5501 contains a high-quality long-term spray protection to improve the working conditions.

Blackening salt SG-VA

Blackening salt SG-VA is a special blackening process. SG-VA is particularly suitable for the blackening of high-alloy and stainless steels, preferably for non-magnetic stainless steels. SG-VA is a nitrite-free product that forms uniform deep black surfaces. For composite parts with normal steel, steel parts can also be plated. The layer is resistant to bending and abrasion. Conductivity and magnetic properties are not affected.

Blackening salt SG-VA-OS

Blackening salt SG-VA is a highly alkaline powder product and it is an oxidic-sulfidic process. SG-VA-OS is particularly suitable for blackening V2A materials, i. of magnetic stainless steels (stainless steel, rivets, screws, pins, etc.) SG-VA is a nitrite-free product and forms uniform, deep black surfaces. Dimensional tolerances are retained. The layer is resistant to bending and abrasion. Conductivity and magnetic properties are not affected.

Cold blackening SG-3

The Cold blackening SG-3 works at 15 - 30 °C and saves compared to the usual hot blackening processes enormous energy costs. It produces deep black coatings with high corrosion protection on all steel types in about 1-minute dipping time.

Cold blackening SG-57

Cold blackening SG-57 is a product that completely saves the enormous energy costs of hot-blackening processes. On iron and steel parts it achieves in 0.5-5.0 minutes treatment time deep black coatings. The SG-57 however cannot generally replace the blackening layers achieved in the classic hot-blackening processes. The Cold blackening SG-57 operates at room temperature and produces deep black coatings. The Cold blackening SG-57 is nickel-free and a ready-to-use solution.