General Maintenance of Yellow Bronze and White Bronze

Procedure code:
501009S
Source:
National Capitol Region Specifications
Division:
Metals
Section:
Metal Materials
Last Modified:
01/04/2018

Technical Procedures Disclaimer
Prior to inclusion in GSA’s library of procedures, documents are reviewed by one or more qualified preservation specialists for general consistency with the Secretary of Interior Standards for rehabilitating historic buildings as understood at the time the procedure is added to the library. All specifications require project-specific editing and professional judgement regarding the applicability of a procedure to a particular building, project or location. References to products and suppliers are to serve as a general guideline and do not constitute a federal endorsement or determination that a product or method is the best or most current alternative, remains available, or is compliant with current environmental regulations and safety standards. The library of procedures is intended to serve as a resource, not a substitute, for specification development by a qualified preservation professional.

Rewrite
We’ve reviewed these procedures for general consistency with federal standards for rehabilitating historic buildings and provide them only as a reference. Specifications should only be applied under the guidance of a qualified preservation professional who can assess the applicability of a procedure to a particular building, project or location. References to products and suppliers serve as general guidelines and do not constitute a federal endorsement nor a determination that a product or method is the best alternative or compliant with current environmental regulations and safety standards.


PART 1---GENERAL

1.01 SUMMARY

  1. This procedure includes guidance on the routine monthly maintenance of exterior and interior architectural bronze components.

PART 2---PRODUCTS

2.01 MANUFACTURERS

  1. Industrial Soap Co.

2.02 MATERIALS

  1. Non-ionic Detergent: A controlled suds, silicate buffered, non-ionic, rinseless-type synthetic detergent, containing no soap, alkali, solvents, abrasives, acids or caustics such as Zyfo cleaner concentrate (Industrial Soap Co.), or approved equal.

  2. Water shall be clean, potable, non-staining and free of materials detrimental to all surfaces to be cleaned.

  3. Cloth: Clean, cotton waste.

PART 3---EXECUTION

3.01 ERECTION, INSTALLATION, APPLICATION

  1. This procedure should be carried out by janitorial services, supervised by the Contracting Officer s representative. Anything beyond cleaning should be referred to the metal conservator for immediate repair.

  2. For regular monthly maintenance and cleaning of the architectural bronze, apply a non-ionic detergent to all surfaces using a sponge.

  3. Thoroughly rinse the surfaces with water and dry with a clean dry cloth.

  4. Protect all surrounding materials from water damage.

Last Reviewed: 2017-08-13