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 Selection Workflow
1
Process & Requirement Definition
Map the unit operation and define the functional, purity, and regulatory requirements the chemical input must meet.
2
Chemistry & Grade Selection
Match the solvent, intermediate, acid or base, catalyst, or specialty additive to the process and downstream compatibility.
3
Trial & Specification
Validate performance at bench or pilot scale, and set the grade, treat rate, and packaging to match throughput and handling.
4
Quality & Supply Assurance
Lock the spec with a CoA and secure multi-origin sourcing for supply resilience and consistent lot quality.
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