A trivalent blue passivate suitable for use on all types of zinc deposits and is supplied as a liquid concentrate. Slotopas Z 20 has a low make up cost and extended life.

This passivate maintains a consistent blue and corrosion resistance conversion coating throughout the life of the bath and will maintain these characteristics even after heat treatment at 200°C.

Slotopas HK20 is a high performance trivalent process designed to meet or exceed the DIN 50961 standard for a yellow passivate. The appearance is a pale blue/yellow/green.

Corrosion resistance results are exceptional and are not affected by heat treatment. 250 to 275 hours resistance to white rust is readily achieved.

A trivalent (chrome VI-free) passivation process producing yellow-green protective layers on zinc coatings. The corrosion resistance is excellent and is equivalent to the protecting effects of a yellow-chromating process based on chrome VI.

An iridescent passivate, suitable for all types of zinc solutions. Metapas F Yellow is both chloride and fluoride free.

A yellow iridescent passivate, particularly designed for alkaline, cyanide and acid zinc produced deposits.

Supplied as liquid concentrate, Slotopas Yellow 10 has a low percentage make up and short immersion times.

A passivate for the olive passivation of zinc deposits from acid electrolytes.

This process produces an even, deep, black chromate film on zinc surfaces. The process can be replenished to extend the solution life.

Corrosion resistance in excess of 72 hours in rack and 48 hours barrel applications is achievable.

A salt version of Metapas F Black.

This post dip solution greatly improves the adhesion of yellow chromated layers and improves corrosion resistance.

For use following Metapas Olive, Black or Yellow, Post Dip CF fixes the passivate film producing an optically even appearance with enhanced corrosion resistance.

Slotofin 10 is a post treatment process for zinc-nickel deposits that have been passivated with a clear film. The system is water based and can be applied by immersion or by spray.

Corrosion resistance is improved and smudging after drying is reduced.

Based on silicate, Slotofin 20 is an alkaline process for the post treatment of passivated zinc and zinc alloy coatings.

Slotopas HK20 is a high performance trivalent process designed to meet or exceed the DIN 50961 standard for a yellow passivate. The appearance is a pale blue/yellow/green.

Corrosion resistance results are exceptional and are not affected by heat treatment. 250 to 275 hours resistance to white rust is readily achieved.

A process for the yellow-green iridescent passivation of zinc alloys containing 10-15% nickel.

Chromated zinc-nickel coatings achieve approximately 5 times the corrosion resistance to white rust of passivated zinc coatings in salt spray test to DIN 50021. Corrosion resistance also remains very good after heat treatment at 120°C.

Zinc coatings in salt spray test to DIN 50021. Corrosion resistance also remains very good after heat treatment at 120°C.

A silver-free process for black chromating of zinc-nickel coatings containing 12-15% nickel from alkaline electrolytes.

A single stage post dip process for black chromated of zinc-nickel alloy deposits.

This process fixes the chromate film, producing good optical evenness and improved corrosion resistance.

Slotofin 10 is a post treatment process for zinc-nickel deposits that have been passivated with a clear film. The system is water based and can be applied by immersion or by spray.

Corrosion resistance is improved and smudging after drying is reduced.

Based on silicate, Slotofin 20 is an alkaline process for the post treatment of passivated zinc and zinc alloy coatings.

Slotopas HK20 is a high performance trivalent process designed to meet or exceed the DIN 50961 standard for a yellow passivate. The appearance is a pale blue/yellow/green.

Corrosion resistance results are exceptional and are not affected by heat treatment. 250 to 275 hrs resistance to white rust is readily achieved.

A single stage yellow passivate for zinc alloy deposits containing 0.3%-0.6% iron. The chromated film has both good adhesion and corrosion resistance.

A black chromating process suitable for both zinc-iron and zinc-cobalt alloys. This two stage process meets the requirements of DIN 50962.

A silver-free black passivate for deposits containing zinc alloy deposits containing 0.3%-0.6% iron.

Slotopas Z-ZE 20 can be used as a single or two-stage process, which meets the corrosion resistance requirements of DIN 50962.

Post Dip CF may also be used to further improve corrosion properties and to brighten the finish.

Corrosion resistance can also be improved by drying at 90-120°C.

This process produces an iridescent black finish on zinc-iron alloys containing 0.5-0.7% iron. The process is chrome (VI) free.