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Widnes Galvanising launches new environmentally-friendly passivation process

06 October 2023 | Joseph Ash Galvanizing

Widnes Galvanising launches new environmentally-friendly passivation process

Widnes Galvanising, the latest addition to the Joseph Ash Group, has just launched their new environmentally-friendly passivation process!

An alternative to hexavalent chrome passivation, Widnes Galvanising’s non-chrome 6 passivation is a fantastic step towards keeping the galvanizing process environmentally friendly, as well as making sure we deliver only the best quality finish for our customers.

What is passivation?
After hot dip galvanizing has taken place, items (on request) are “passivated”. Passivation causes a chemical reaction to occur, where a thin transparent layer of metal oxide coats the galvanized steel to help reduce the effects of wet storage stain and cool the items so they can be handled safely.

Our new passivation process does not use hexavalent chromium (Cr(VI)) compounds within the process. Instead, it relies on compounds which are considered less toxic and more environmentally friendly. Our new method of passivating is a safer alternative to traditional Cr(VI) passivation, while delivering only the highest-quality finish for our customers.

Benefits of non-chrome 6 passivation
The main difference between hexavalent chrome passivation and our new non-chrome 6 passivation is its environmental impact; Widnes Galvanising’s passivation process is more environmentally-friendly than traditional Cr(VI) passivation. At Joseph Ash we’re dedicated to protecting the environment, so this is a fantastic change for our Widnes site.

Other benefits of passivation include:

Increased corrosion resistance: Passivation significantly improves the corrosion resistance of zinc-coated steel. This is particularly important in outdoor and industrial environments where exposure to moisture, chemicals, and pollutants is common.

Aesthetic appeal: Passivation can enhance the appearance of the galvanized surface by providing a smoother and more aesthetically pleasing finish.
Extended lifespan: Galvanized products with passivation tend to have a longer service life, reducing maintenance and replacement costs.
Improved adhesion: Passivation can improve the adhesion of paints and coatings to the galvanized surface, making it easier to apply and more durable.

Contact Widnes Galvanising today to discuss your hot dip galvanizing and passivation requirements.

Other Press Releases from Joseph Ash Galvanizing

14/2/2025 - Widnes Galvanising Ltd achieves ISO 9001 Widnes Galvanising Ltd, trading as Joseph Ash Widnes, has achieved the ISO 9001 accreditation for Quality Management Systems.
12/11/2024 - Joseph Ash Chesterfield achieves FORS Gold A huge congratulations to our Joseph Ash Chesterfield site, who has recently achieved the FORS Gold Accreditation for their transport fleet.
11/10/2024 - A tribute to Keti Koti Sokari Douglas Camp’s ‘The Three Graces − The Dialogue’: galvanized and powder coated by Joseph Ash Medway
13/6/2024 - The RHS Chelsea Flower Show The RHS Chelsea Flower Show is an annual show to see cutting-edge garden design, new plants, and garden ideas, drawing a global crowd year on year.
14/5/2024 - Sustainability Week at Joseph Ash Galvanizing Last week was sustainability week at Joseph Ash Galvanizing - a week for colleagues to focus on all things sustainability.