TECHNIQUE12.09.2023 General Laboratory 7 min read

The Alchemy of Cleaning Fluids

Ultrasonic cleaning jars and disassembled watch components
FIG 1.0 — Ultrasonic cleaning jars and disassembled watch components

Examining the chemical composition of modern watchmaking solvents versus traditional methods, and their impact on vintage brass plates.

In traditional horology, benzene and ammoniated solutions were standard for degreasing raw movement components.

Modern horological science utilizes multi-stage ultrasonic baths containing specialized aqueous solutions (L&R NDT or Elma 1:9 concentrate) followed by non-polar hydrocarbon rinses.

We test the surface tension effect of residue-free solvents on delicate jewel settings, ensuring epilame treatment (Fixodrop) adheres uniformly to escape wheel teeth.

TECHNICAL SPECIFICATION
Movement Benchmark: General Laboratory
SWISS HOROLOGY ARCHIVE
CHRONOCODILE LABORATORYHorological Preservation & Restoration Journal
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