materials-finishes

Controlled Sulfide Conversion in Antique Brass (US5) Hardware Finishes

Engineering Overview: Process guide on Antique Brass (US5 / BHMA 609) chemical oxidation, scotch-brite highlighting, and microcrystalline wax sealing.

Technical & Engineering Specifications

Process Controlled Sulfide Oxidation + Hand Relieved
Sealant Microcrystalline Carnauba Wax / Baked Clear Lacquer
Application Historic Restorations & Luxury Heritage
Finish Standard Antique Brass (US5 / BHMA 609 / AB)

Heritage Architectural Finish

Antique Brass (US5 / BHMA 609) features dark oxidized recessed brass with hand-relieved golden highlights.

Finishing Sequence

  • Sulfide Immersion: Chemical bath forms dark brown copper sulfide.
  • Relief Wheeling: Scotch-Brite wheels highlight edges, sealed with carnauba wax.

Frequently Asked Engineering & Selection Questions

Q1: What are the primary material characteristics of this finish?

Process guide on Antique Brass (US5 / BHMA 609) chemical oxidation, scotch-brite highlighting, and microcrystalline wax sealing.