BONDERITE M-CR-T5900
Harmonization Code : 3208.20.90 | Paints and varnishes that are dispersed or dissolved in a non aqueous medium
Main features
- Trivalent-Chromium Corrosion-Resistant Conversion Coating
- MIL-DTL-81706/5541 Type II Qualification
- Immersion or Pressure-Spray Processing
Product Description
BONDERITE® M-CR T5900 AERO is a non-hexavalent trivalent chromium conversion coating for aluminum and its alloys, IVD aluminum, magnesium, titanium, and zinc surfaces. Designed for immersion and pressure spray applications, it develops a complex trivalent chromium conversion coating that provides corrosion resistance while serving as an excellent base for paints and adhesives. The process is qualified to MIL-DTL-81706 Type II and is approved for applications requiring MIL-DTL-5541 Type II conversion coatings.
Key Features
- Non-hexavalent trivalent chromium conversion coating for multiple aerospace alloys.
- Provides corrosion resistance while promoting paint and adhesive bonding.
- Suitable for immersion and pressure spray processing.
- Qualified to MIL-DTL-81706 Type II and authorized for MIL-DTL-5541 Type II applications.
- QPL-listed aerospace conversion coating process.
Applications / Suitable for
- Aluminum and aluminum alloys
- IVD aluminum-coated components
- Magnesium surfaces
- Titanium surfaces
- Zinc surfaces
- Aerospace conversion coating
- Paint pretreatment
- Adhesive bonding pretreatment
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Product TypeProduct Type
Trivalent chromium conversion coatingThermal Properties
Operating TemperatureOperating Temperature
20–43°C (68–110°F) °CAdditional Information
Technical Properties
As-Supplied / Before-Processing Properties
| Property | Value | Unit | Method / Condition |
|---|---|---|---|
| Technology | Metal Pretreatment | — | Supplier classification |
| Product Type | Trivalent chromium conversion coating | — | Supplier description |
| Chemistry | Non-hexavalent chromium | — | Product and coating contain no hexavalent chromium |
| Application methods | Immersion, Pressure spray | — | Supplier recommendation |
| Qualified specification | MIL-DTL-81706 Type II, Class 1A & Class 3 | — | Methods A, B & C; QPL listed |
| MIL-DTL-5541 | Authorized for Type II coatings | — | Supplier published |
Technical Properties
After-Processing / Final-State Properties
| Property | Value | Unit | Method / Condition |
|---|---|---|---|
| Working concentration | 3–10 | % | Operating range |
| Bath make-up | 5% BONDERITE M-CR T5900 + 1% BONDERITE M-AD T5900 | v/v | Per 100 gallons |
| Operating pH | 3.8–4.0 | — | Maintain during operation |
| Operating temperature | 20–43 | °C | 68–110°F |
| Immersion time | 5–10 | minutes | Supplier recommendation |
| Spray time | 1.5–10 | minutes | Supplier recommendation |
| Typical coating appearance | Light blue to iridescent blue | — | Varies with alloy |
| Final rinse | DI water rinse recommended | 5–15 seconds | After tap water rinse |
| Maximum drying temperature | 60 | °C | Peak metal temperature |
