1. Nitric Precleaning
2. Sulfric & Phosphoric Cleaning
3. Nitric Passivation
4. Hot Rinse and Dry
CD's Electropolishing is a four stage process to clean stainless steel products.
- Nitric Precleaning - Surfaces are precleaned in a nitric solution.
- Sulfuric and Phosphoric Acid Cleaning - Further cleaning takes place when your
product is placed into our chemical solution tanks. We use a 65:35 Sulfuric/Phosphuric
acid solution heated to 65 degrees celsius and then pass a 3000 volt DC current across
the surface of the product. This results in the removal of minor metal burring and
cleans the microscopic crevices. Metal contamination from the work surface is
removed, resulting in a chromium oxidised surface capable of handling the harshest of
- Nitric Passivation - Further cleaning takes place to remove any acid residue with a
nitric rinse to passivate and neutralise the acidic solutions used.
- Hot Rinse and Dry - The final cleaning process involves rinsing the products in hot
water heated to 85 degrees celsius, removing all contamination prior to the product
being dried and packaged. Please note large scratches and burrs will not be
CD’s Electropolishing process consists of four stages to clean and passivate your stainless steel products, so they have high quality, improved surface finish and are suitable for harsh environments such as coastal areas, near swimming pools, outdoors, in bathrooms and in kitchens.
Metals CD's Electropolishing can electropolish
CD's Electropolishing can electropolish all grades of stainless steel only.
Please contact us if you are unsure of the material your product is made from.
What's the difference betweeen Electropolishing and Electroplating?
Electropolishing is the reverse of electroplating. Electropolishing involves the removal of iron molecules from the surface of the stainless steel product whereas, electroplating refers to the process coating the surface.