TECHNICAL DATA SHEET
Iron phosphatation or amorphous phosphatation is a superficial chemical transformation of a substrate using an appropriate acid solution to perform two functions :
- Create an adhesive base for organic coatings.
- contribute to the corrosion protection of the surface treatment + paint system.
Name of the process :
- Degreasing-phosphatation: because it allows to combine the two operations in a single step
- Iron phosphation: because the layer formed on steel is based on iron phosphate (iron from the substrate)
- Amorphous phosphatation: because the formed layer has no well-defined structure (no crystals).
The phosphatation process is complex because it requires a careful surface preparation and precise knowledge of the elements present on the surface which may be of a different natures :
- FAT SURFACE FILM
- corrosion protection oil on coil
- lubricant for shaping parts (stamping, etc.)
- Average protection oil rate: 2 g/m² (1.5 to 3 g/m²)
- POLLUTION ELEMENTS IN CONTACT WITH THE SURFACE
- rolling mills (metal dust from cylinder wear)
- annealing (decomposition of rolling oils)
- migration to the metal surface of certain steel components, including carbon
- POLLUTION ELEMENTS IN CONTACT WITH THE OIL FILM
- environment, dust, filings,
- manufacturing process (grinding, drilling, sawing, etc.).
There are three modes of application of BONDERITE® amorphous phosphatations :
- Spraying: tunnel, machine
- Immersion: small series, hollow body
- High-pressure: very large parts
AREAS OF APPLICATION FOR BONDERITE® AMORPHOUS PHOSPHATATIONS :
- Preparation before painting
- Degreaser/phosphatant: amorphous iron phosphatation, dip application, jet and high pressure system, multi-metal, low layer weight/high layer weight, mineral or organic accelerator, mono or bi-component,
Below are our standard BONDERITE® DEGREASER-PHOSPHATANT :
- BONDERITE M-FE HP
- BONDERITE M-FE 687
- BONDERITE M-FE LF-3820
- BONDERITE M-FE 30 A
- BONDERITE M-FE 1070
List not exhaustive, contact us for a recommendation or if you are looking for another reference.