Brasso polish

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Brasso polish

Description

[Reckitt Benckiser, NJ, US] A registered trademark for a commercial metal polish. Brasso is advertised for cleaning and polishing Brass, Copper, plate chrome, Stainless steel, and Pewter. The slightly viscous, opaque liquid contains Petroleum distillate (60-70%), crystalline Silica (9-12%) and ammonia (2-3%). Ammoniated cleaners are not recommended for museum objects.

Risks

FTIR

Brasso Polish FTIR.PNG

  • Reacts with silver.
  • May dissolve paint and varnish.
  • Causes stress corrosion cracking of brass coated iron and hardened brass.
  • Rothko: SDS

Physical and Chemical Properties

Density 0.97 g/ml
Boiling Point 159.9

Resources and Citations

  • J. Moss "Ammoniated Cleaning Solutions" British Horological Institute Journal, August 1997, online Link
  • Reckitt: Website (As of 2022, Brasso is no longer listed as a product in the US)
  • Cconservation termlist: www.hants.org.uk/museums