Why It Matters
Aluminum finishers in aerospace, electronics enclosures and defense apply conversion coatings (chem-film type) for corrosion resistance and paint adhesion and are migrating from hexavalent to trivalent chromium and Cr-free concentrates. Position trivalent and Cr-free only; run legal review and make no safety or efficacy claims
Solution Approach
Aluminum finishers in aerospace, electronics enclosures and defense apply conversion coatings (chem-film type) for corrosion resistance and paint adhesion and are migrating from hexavalent to trivalent chromium and Cr-free concentrates. Position trivalent and Cr-free only; run legal review and make no safety or efficacy claims RawSource supplies the base chemicals that go into these programs. We can help with product selection, grade matching, and sourcing from multiple origins for supply security.
Typical Treatment Workflow
1
System Assessment
Characterize operating conditions—fluid composition, temperature, pressure, flow rates—and benchmark current treatment performance.
2
Chemistry Selection
Match base chemicals to your operating envelope. Factor in compatibility with existing programs, regulatory constraints, and downstream impacts.
3
Dosage & Delivery
Determine optimal treat rates through jar testing or field trials. Configure packaging (drums, totes, ISO tanks) to match consumption and storage logistics.
4
Monitoring & Adjustment
Track KPIs—coupon rates, residuals, separator performance, water quality. Adjust chemistry and dosage as conditions change.
Recommended Chemistries (3)
Trivalent chromium (Cr III) conversion concentrate
Deposits a thin Cr(III)-based passive film on aluminum for corrosion resistance and paint adhesion, replacing carcinogenic hexavalent Cr(VI) chemistry
Full Details
Hexafluorozirconic acid
CAS 12021-95-3
Zirconium-based Cr-free conversion chemistry that forms a zirconium-oxide adhesion and corrosion layer on aluminum
Full Details
Hexafluorotitanic acid
CAS 16962-40-6
Titanium-based Cr-free conversion option forming a titanium-oxide pretreatment layer for paint adhesion
Full Details