Galfan

A

Minor imperfections - such as small honeycombs, variations in grain size, dark spots, light scratches, and passivation spots - are possible

B

It is obtained through skinpass. Small imperfections - such as scratches due to skinpass, streaks, irregularities (not cavities) - are possible with this kind of surface

C

It is obtained through skinpass. The best surface does not harm the apparent uniformity of a high color finish class; the other surface must be at least type B

C

Chemical passivation, traditionally chromium-based; also available free of trivalent chromium, in compliance with the RoHS Directive; greenish residues may remain on the surface that do not alter product characteristics

O

Oiling using oils that can be removed during greasing without compromising the coating

CO

Combination of oiling and chemical passivation to enhance the protective effect against corrosion

S

Organic passivation, commercially referred to as AFP (Anti Finger Print) or SPT (Resin Coating), consisting of a polymer film containing corrosion inhibitors; available free of hexavalent chromium; improves corrosion protection, prevents fingerprinting, facilitates sliding during processing, and acts as a primer during painting

P

Phosphating, particularly suitable for the application of a subsequent layer of paint

PO

Combination of phosphating and oiling to improve formability

U

Without any protection, under the customer’s responsibility