Conversion Coating — Process Challenge

アルミニウム用三価クロム化成処理剤

航空宇宙、電子機器筐体、防衛分野のアルミニウム仕上げ業者は、耐食性および塗装密着性を得るため化成処理(ケミフィルムタイプ)を施しており、六価クロムから三価クロム、無クロム濃縮物への移行を進めています。三価および無クロム製品のみを取り扱います。法務レビューを実施し、安全性および効能に関する表明は行いません
Updated Jun 2026
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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
Hexafluorozirconic acid
CAS 12021-95-3
Zirconium-based Cr-free conversion chemistry that forms a zirconium-oxide adhesion and corrosion layer on aluminum
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Hexafluorotitanic acid
CAS 16962-40-6
Titanium-based Cr-free conversion option forming a titanium-oxide pretreatment layer for paint adhesion
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