[Product Description]
It is composed of carboxyl polyester resin, pigment filler, additive and curing agent. It has many advantages, such as its superior weather resistance and UV resistance. The film has good mechanical properties, high hardness, scratch resistance, corrosion resistance, and good leveling property. The coating film basically has no pinhole and shrinkage hole and other defects. There are many colors and varieties. It can be prepared without light, light, pattern, hammer pattern, etc. It is mainly used for outdoor metal products such as air conditioners and outdoor lamps.
[Product Description]
Compared with chromium free passivation agents on the market, this passivation agent has stronger adhesion and better corrosion resistance. The neutral bare film salt spray time can reach 120 hours, overcoming the problem of poor corrosion resistance of bare film in traditional chromium free passivation processes for aluminum materials. It especially meets the requirements for the appearance and corrosion resistance of aluminum materials in fields such as communication, automotive, and hardware. It has been increasingly widely used in the fields of pre-treatment before spraying and surface anti-corrosion treatment.
[Performance characteristics]
Does not contain heavy metals such as hexavalent chromium, meets environmental requirements, and meets ROHS requirements
Easy to operate, easy to manage, phosphorus free, reducing wastewater treatment costs
Neutral bare film salt spray time can reach more than 120 hours, enhancing coating adhesion and solvent resistance performance
[Scope of Application]
Suitable for pre-treatment processes of various aluminum profiles, die cast aluminum and other aluminum products.
[Application Guide]
Product model: ZH-319
Water quality requirements: tap water
Slotting concentration: 1-2%
PH: 2.8~4.5
Processing time: 30-90 seconds
Processing method: soaking, spraying, applying
[Reference process]
Degreasing → water washing → water washing → no chromium passivation → water washing → drying
[Processing effect]
