Chemicals
Our chemical product range
Our current chemical product range includes over 300 products around the processes of degreasing, pickling, black oxidising, phosphating, corrosion protection and colourants for stainless steel, brass, copper, nickel silver and die-cast zinc. We develop, produce and market our chemical products around the world and profit from the know-how we have collected over the decades.
Degreasing
DEWE Brünofix GmbH "Alkalit" products:
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Depending on the application
- From gentle cleaning agents to highly alkaline concentrated degreasing agents
- Easy handling
- Preparation and supplement possible with just one product
- Flexible
- Hot and cold processes, powder or liquid form
- Dependent on the product, derusting and activating at higher concentrations
- Demulsifying
- Suitable for use with ultrasound
- Also suitable for non-ferrous metals
Pickling
DEWE Brünofix GmbH "Rostalit" products:
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Based on hydrochloric acid, sulphuric acid, phosphoric acid and mixed pickling fluids
- Complete pickling agents, i.e. the products already contain surfactants and inhibitors
Note: Inhibitors can also be purchased separately.
Black oxidation salts
DEWE Brünofix GmbH "Brün" products:
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For 1, 2 or 3 bath treatment methods
- All black oxidation salts contain a highly-active long-term spray protection
- Universal product for a broad application
- Special products for special applications:
- Hardened and high-alloy steels
- Products for the weapons industry
- Cast materials
- Stainless steels
Phosphating
DEWE Brünofix GmbH "Phosphata" products:
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Zinc, manganese and zinc calcium phosphating agents for use in immersion processes
- Layer thickness can be specifically controlled by adding our special accelerating solution to the phosphating bath for zinc and zinc calcium phosphating agents
- Pre-activation agents for zinc, zinc calcium and manganese phosphating agents to influence layer strength and layer structure
Colouration methods
"Cold black oxidation": DEWE Brünofix GmbH "Cold colouration" products
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Black colouration for cast and iron materials
- Application at ambient temperature
- Low plant engineering outlay
Colouration of brass and copper: DEWE Brünofix GmbH "Mekupa" products
- Brown or black colouration
- Cold or hot processes
Blackening of die-cast zinc: DEWE Brünofix GmbH "Zanova" products
Black and brown colouration of nickel silver: DEWE Brünofix GmbH "Neusilber" products
Post-treatments
Emulsions: DEWE Brünofix GmbH "Emulsin" products
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Matt to slightly shiny surfaces, dependent on the product
- Good corrosion protection
- Variable oil film, dependent on the mixing ratio
- 5–20 vol-% preparation
Dewatering agents: DEWE Brünofix GmbH "Fluid" products
- Matt surfaces that can be painted or oily, shiny surfaces, dependent on the product
- Washable, ensuring a very long lifetime
- Usually without fire hazard categories
- Ready-to-use product
Passivation: DEWE Brünofix GmbH "Passivation" products
- For temporary corrosion protection for indoor storage
- Water-soluble corrosion protection concentrate
- Can normally be painted over
- Low batch pH: 1 -3 vol-%
Boiling oil: DEWE Brünofix GmbH "Korrosin" products
- Particularly suitable for black oxidised surfaces with blind holes, etc. as any black oxidation salt residues will be subject to saponification
- Good long-term corrosion protection
