Spray Passivation
- Application via spray nozzels in a bath (automatic)
- Manual possibility, just spray (mist) and passivate
- Excellent white rust prevention, long-term protection
- No bath control needed
AD Chemicals introduces a unique spray-applied passivation for freshly hot-dip galvanized steel. This Chromium-6 free solution can be applied manually via spray gun or automatically using nozzles, making it a versatile alternative for galvanizers who do not (yet) operate with passivation baths. With this technology, a passivation step can be seamlessly integrated into any galvanizing line — regardless of existing infrastructure.
Traditional passivation methods require a dedicated immersion bath in the quenching or cooling stage. This spray technology provides a solution for galvanizers looking to upgrade their corrosion protection capabilities without major process modifications or investments.
Innovative passivation technology – even without immersion baths
It is especially ideal for:
- Smaller galvanizing operations
- Retrofit in existing lines
- On-demand or localized treatment
- No need for bath control
Test results
Key Features
- Chromium-6 free: based on environmentally safer Chromium(III)
- Manual or automatic spray application
- No need for immersion tanks
- No need for bath control, always work with fresh chemistry
- Excellent protection against white rust
- Forms a transparent, corrosion-resistant passivation layer
- Ensures corrosion resistance during storage and transport
- Water-based, REACH-compliant formulation
- Suitable for general galvanizing (HDG)
A Trusted Choice for HDG
Backed by years of R&D and real-world validation, AD Chemicals passivations compete easily with traditional hexavalent chrome treatments, offering a safer and sustainable alternative without compromising performance.
