We offer a comprehensive range of advanced surface treatment technologies for Magnesium alloys, tailored to meet the strict requirements of aerospace, electronics, and high-performance applications. Our processes provide corrosion protection, improved paint adhesion, and compatibility with all conductive applications, while complying with environmental and non-chromate standards.
1. OXSILAN® MG - Silane-Based Coatings
Non-chromate, fluoride and heavy metal free, silane treatment designed for corrosion
- Non-chromate treatment
- Based on organic silicon compounds
- Fluoride free
- Heavy metals free
- Thickness: ≤ 1 micron
- Dipping, spraying, rolling (no rinse)
- Ambient temperature process
- Excellent performances on all Mg alloys
- Offers bare corrosion protection
- Excellent paint adhesion (powder coating)
- Conductive coating (4000 μOhms/inch2)
- Selective coating
2. Conversion Coatings Ardrox®1769 / Gardobond® X4729
A chrome-free pre-treatment based on complex fluorides.
- Completely chrome-free technology
- Based on complex fluorides
- Non-conductive coating
- Easy visible layer (alloy depends on color)
- Variable thicknesses
- Dipping, spraying application
- Low temperature process
- Applicable on: Elektron 43, Elektron 21, Elektron 675, WE43, WE54, as well as AZ, AM, AE and other magnesium alloys
- Stand-alone corrosion protection when sealed (with OXSILAN ®) up to 48 hours
- Hardness: 250 – 300 Vickers
- Thickness: 8 – 12µm
- Excellent pretreatment for E-coat, wet paint, powder coating, PTFE coating, and adhesive bonding
- Ignition inhibitor for magnesium alloy
3. Anodizing Ardrox®1770 / ALGAN 2M / PGA
Advanced anodizing technology developed for aerospace use.
- Aerospace anodizing process for magnesium
- Environmentally friendly (chrome-free)
- Low Voltage (≤ 150V)
- Smooth surface coating (equivalent to Chromic Acid Anodize)
- Offers excellent corrosion protection (equivalent to CAA)
- Paint pretreatment process
- Thickness: 8 – 12 microns
- Hardness: 100 – 150 Vickers
- No impact on dynamic mechanical properties
- Bare corrosion resistance: 336 hours SST in accordance with ASTM B117
4. Ardseal® MG & Sealgel® MG Corrosion Inhibitor Compounds
Special sealers are designed to enhance corrosion resistance and durability.
- Ardrseal® MG XX
- Slightly colored (yellowish) sealer
- Improving of standalone corrosion resistance of Ardrox®1770 on Mg alloys
- Improving of galvanic corrosion resistance of Mg – Stainless steel joints
- Thickness: 10 – 60 micron, depends on application
- Sealgel® MG XXX
- Colorless polyurethane-based two-component sealer
- Improving of standalone corrosion resistance of Ardrox®1770 and Ardrox® 1769 on Mg alloys
- Improving resistance to scratches
- Thickness 15-20 micron
5. E-Coat
Cataphoretic black coating for electro-optical and structural applications.
- Thin, low-reflection black layer
- Compatible with investment castings and wrought alloys (AZ31, AZ91E, EV31A, WE43)
- Acts as a non-chromate primer
6. Naftoseal® Sealants Galvanic Corrosion Protection
For reliable protection in assemblies involving dissimilar metals
- Proven in aerospace applications
- Applied in riveting, threading, and insert mounting
- Excellent results in salt spray testing (ASTM B117)