PrimeCoat Z93x-series TOC pretreatment

Thin organic film (TOC) for coil coating, pretreatment and primer with one chemical technology
A water-based functional coating purposely developed to improve corrosion resistance of zinc based alloys
Multi-metal; standard zinc, electrogalvanized zinc, Galvalume®, Galvannealed, magnesium-aluminium-zinc alloys, Alusi® and Galfan®.

PrimeCoat TOC pretreatment Z93x-series is the productportfolio for PrimeCoat® products that can be used as a TOC (or Passivation). Based on trivalent chromium.

metal coils storage protection chemicals

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PrimeCoat TOC pretreatment Z93x-series is a product range of water-based functional coatings purposely developed to improve corrosion resistance of galvanized steel. At different concentrations the products enable different applications, such as TOC (multifunctional permanent coatings), Passivation or primer replacement.

Additional properties where PrimeCoat® Z93x products in exells are:

Reduction of the friction of the metal surface in forming operations
Improved bonding properties.

PrimeCoat® Z93x products contain acrylic resin and trivalent chromium. The products are free from hexavalent chromium Cr(VI) and fluorides. Galvanized steel sheet treated with PrimeCoat® Z93x is not sensitive for finger prints and is not easily removed by (alkaline) cleaning.

It is multi-metal: typical galvanized steel surfaces that will have advantage of the PrimeCoat Z93x coatings are: standard zinc, electrogalvanized zinc, Galvalume®, Galvannealed, magnesium-aluminium-zinc alloys, Alusi® and Galfan®.

Metal coated with PrimeCoat Z93x is combining excellent tribological properties and outdoor weathering resistance.

PrimeCoat® Z93x-series benefits

Trivalent chrome-based modular TOC product
Water-based chemistry and VOC (solvent-free)
TOC, Passivation and or primer replacement with one chemical technology
Low dry film coating weight
Excellent appearance, even at higher coating weights
Passivation properties, enabling excellent corrosion resistance even when no primer is used
Corrosion resistance surpassing Cr(VI) passivation
Good adhesion properties
Compatible with a range of paint systems; excellent paintability after PrimeCoat treatment
Easy application (chemcoater or spray/squeeze)
Excellent lubrication & mechanical properties to reduce galling in deep drawing operations (adjustable CoF)
Drying at low PMT (>40°C)
Key product parameters can be adapted to customer needs

Modular system Z93x series

A unique aspect of PrimeCoat® Z93x products is that they can be tailored to specific customer processes based on a modular system. By changing the product concentration or adding certain specialty additives specific product properties can be enhanced while maintaining good overall quality. If the application concentration is increased the product obtains TOC based characteristics, such as improved:

Corrosion resistance
Lubrication
Mechanical resistance
Adhesion properties
Anti-fingerprint properties

At a lower application concentration (<50%) it can be used as a high performing passivation. Convinced? Plan a test today!

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.

PrimeCoat TOC

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.

PrimeCoat passivation

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.

PrimeCoat pre-treatments

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.

Cleaners and additves