Galvalume Chemicals

Galvalume is a process of imparting a sacrificial aluminum-zinc coating on the iron or steel surface, thereby protecting the surface from atmosphere. Method of application differs according to the need and availability of measures. Thin Organic Coatings (TOC’s) are applied in a continuous process on hot-dip galvanized steel strip, Galvalume®, Aluzinc. TOC’s can offer a wide range of benefits; from anti fingerprint properties to improving forming, increasing mechanical scratch resistance, and enabling enhanced corrosion protection. TOC is an efficient solution for any application where traditional passivated galvanized material is used, especially in rust sensitive conditions. It is suitable for interior, exterior, exposed and unexposed parts without any additional surface treatment. If necessary, steel with TOC can also be painted.

MAJOR STEPS:

ALKALINE CLEANING – Removing oil, grease and soil from steel surface is crucial, otherwise, dissolution of iron oxide / scale by pickling will be retarded.

DEGREASING CHEMICALS FOR GALVALUME

ETCHINOL S 1121 (ALKALINE DEGREASING)

It is a low foaming strong alkaline liquid metal cleaner for spray cum dip degreasing of ferrous metals prior to hot dip galvalume line, also for cleaning and activating galvanized steel strips prior to chromate conversion.

PHOSCLEAN 05 (ELECTROLYTIC DEGREASING)

It is a silica free heavy-duty caustic based alkaline cleaner used for electrolytic cleaning of ferrous metals and suitable for galvalume process.

PASSIVATION WITH TOC (THIN ORGANIC COATING)

Thin Organic Coating (TOC) chemical is formulated for continuous galvalume line application. It forms an organic coating on treated surface that supports an anti-fingerprint property as well as better corrosion resistance.

BENEFITS OF THIN ORGANIC COATING

Exceptional corrosion resistance.
Anti-fingerprint.
It delays appearance of white rust.
Increases galvanized steel durability.
Keeps galvanized surfaces bright and shiny for extended periods of time.
Savings in customer claims.
Provides the ability to store galvanized products outdoor.
Savings in indoor space for other activities.

PASSICOAT 1400

It is a Thin Organic Coating (TOC) chemical which contains low hexavalent chromium, is formulated for continuous Galvanizing line application, especially on galvalume substrates. Application is generally with reverse roll coating and other applications can also be applied.
PASSICOAT 1400 has been specially formulated to ensure alkaline solutions resistance. It produces a colorless to light Yellow uniform nonmetallic coating which successfully enhances lubricity and provides excellent corrosion resistance.
For Using an innovative polymer in PASSICOAT 1400, it supports good anti-fingerprint quality.

PASSICOAT NC 1500

It is a unique chrome free Thin Organic Coating (TOC) chemical formulated for continuous Galvanizing line application, especially on galvalume substrates. Application is generally with roll coating and other applications can also be applied.
PASSICOAT NC 1500 has been specially formulated to ensure alkaline solutions resistance. It produces a colorless to light bluish uniform nonmetallic coating which successfully enhances lubricity and provides excellent corrosion resistance.
For Using an innovative polymer in PASSICOAT NC 1500, it supports good anti-fingerprint quality. This emulsion chemical is preferably applied by Dry-in-place technology .The process does not include rinsing following the coating treatment.