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Good wet adhesion and corrosion resistance
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No rinse system
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Trivalent chromium pre-treatment for coil coating lines processing zinc based alloys
The PrimeCoat® Z13x-series is part of AD Chemicals’ advanced portfolio of pretreatment solutions for coil coating lines (CCL).
Specifically developed for use on zinc and zinc alloy substrates, this series is completely chrome(VI)-free, offering a more sustainable and environmentally responsible alternative to traditional pretreatments. The Z13x-series ensures excellent corrosion protection and coating adhesion, making it a reliable and high-performance choice for modern coil coating applications.
PrimeCoat® Z13x series are water-based pre-treatments on a chromium trivalent basis for sheet metal, purposely developed to improve paint adhesion and bonding properties of the metal surface.
Cold rolled steel and zinc alloy-coated steel pre-treated with PrimeCoat® Z13x products provide excellent durable bonding of coil-coating paints and adhesive bonding properties.
The bonding properties of PrimeCoat® Z13x products were tested in combination with several monolayer organic coatings after exposure in wet conditions like humidity tests and boiling water.
PrimeCoat® Z13x products can be applied on:
- Zinc-coated steel
- Mg-Al-Zn coated steel
- Galvalume coated steel
PrimeCoat® Z13x-series benefits
- Chromium(III) technology
- Water-based chemistry
- REACH and ROHS compliant
- Suitable for a wide range of zinc alloys
- Can be tailored to specific customer needs
Pretreatments
Durability and extended end-use life are demands that consumers take for granted and of which they expect continuous improvement year on year. Paint adhesion and corrosion resistance are critical factors in keeping end-use applications in a condition that is expected to remain in place for their usable life time.
Passivation
‘White rust’ the enemy of zinc coated steel strips, is in itself a form of corrosion that occurs during storage and is unacceptable for critical applications in, white goods, construction and other industries.
Thin Organic Coatings
Thin Organic Coatings (TOC’s) are applied in a continuous process to hot dip galvanized steel strip and other metal substrates, and can offer a wide range of benefits from anti-fingerprinting to improving, forming and enabling enhanced corrosion protection.
Cleaners and specialty additives
Oils and greases used during processing as well as other forms of surface contamination must be removed. This can be achieved using either acid or alkaline based cleaners depending on the nature of the contamination and the type of metal substrate.
Lubricant boosters
Booster lubricants reduce the wear and tool pollution during pressing of metal sheets.












