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Historic Preservation - Technical Procedures

Spectitle:

General Cleaning Of Aluminium Features

Procedure code:

0501020R

Source:

Hsr - Departmental Auditorium Bldg/Wash, Dc - Grier, Brown..

Division:

Metals

Section:

Metal Materials

Last Modified:

02/24/2012

Details:

General Cleaning Of Aluminium Features



GENERAL CLEANING OF ALUMINUM FEATURES


PART 1---GENERAL

1.01 SUMMARY

    A.   This procedure includes guidance on cleaning burnished
         aluminum.  This may include lighting fixtures, banisters
         and radiator grilles.  GENERALLY, THIS WORK SHOULD BE
         PERFORMED BY AN EXPERIENCED CONTRACTOR.

    B.   See 01100-07-S for general project guidelines to be
         reviewed along with this procedure.  These guidelines
         cover the following sections:

         1.   Safety Precautions

         2.   Historic Structures Precautions

         3.   Submittals

         4.   Quality Assurance

         5.   Delivery, Storage and Handling

         6.   Project/Site Conditions

         7.   Sequencing and Scheduling

         8.   General Protection (Surface and Surrounding)

         These guidelines should be reviewed prior to performing
         this procedure and should be followed, when applicable,
         along with recommendations from the Regional Historic
         Preservation Officer (RHPO).

    C.   For general information on the characteristics, uses and
         problems associated with aluminum, see 05010-08-S.

1.02 REFERENCES

    A.   Aluminum Association, 900 19th Street NW, Ste. 310,
         Washington, DC  20006.


PART 2---PRODUCTS

2.01 MANUFACTURERS

    A.   The Procter & Gamble Co.
         P.O. Box 599
         Cincinnati, OH  45202
         513/983-1100

    B.   ProSoCo, Inc.
         755 Minnesota Avenue
         P.O. Box 1578
         Kansas City,  KS  66117
         800/255-4255 or 913/281-2700

    C.   3M Consumer Products Group
         Box 33053
         St. Paul, MN  55133-3053
         612/737-6501 or 800/364-3577

2.02 MATERIALS

    A.   Mild soap

    B.   Phosphoric acid cleaner with a pH of 0.9

    C.   Clean, potable water

2.03 EQUIPMENT

    A.   Soft, natural bristle scrub brushes (non-metallic)

    B.   Mildly abrasive scrubbing pad


PART 3---EXECUTION

3.01 PREPARATION

    A.   Surface Preparation:  Prior to beginning work, mask and
         protect all surfaces that may be damaged or altered in
         any way by the cleaning operations.

3.02 ERECTION/INSTALLATION/APPLICATION

    A.   Remove any surface protectant from the aluminum surface
         using a standard solvent and a clean, soft cloth.

    B.   Wash the aluminum surface to remove atmospheric oil and
         dirt:

         1.   Apply a mild soap such as "Ivory Liquid", "Joy" or
              "Thrill" (Proctor & Gamble Co.), or approved equal
              using a damp sponge or a soft cloth.  Scrub lightly
              with a natural bristle brush if necessary.

         2.   Wipe the surface with a clean soft cloth.

    C.   If this method does not sufficiently clean the aluminum,
         apply a dilute phosphoric acid cleaner mixed with water,
         such as "Sure Klean Aluminum Cleaner (ProSoCo, Inc.), or
         approved equal.  Follow manufacturer's written
         instructions.

    D.   For very stubborn dirt, apply detergent using a silicon
         carbide abrasive pad such as "Scotch-Brite" (3M Company),
         or approved equal.

    E.   After cleaning is completed, protect the aluminum surface
         by applying a protective wax.

         1.   For areas not likely to come in contact with human
              touch, apply a wipe-on surface protectant such as
              "Aluma-Care" (Coricone Corporation), or approved
              equal.  Apply using a clean, soft cloth.

         2.   For other areas vulnerable to human touch, apply a
              paste wax to the surface with a clean, soft cloth.
              Buff the surface using another clean, soft cloth.

         NOTE:  THE SURFACE PROTECTANT SHOULD LAST 12-24 MONTHS;
         THE PASTE WAX SHOULD LAST 1-3 MONTHS BEFORE NEEDING TO BE
         STRIPPED AND REAPPLIED.  THE NEED FOR REAPPLICATION IS
         EVIDENT BY A DULL OR DISCOLORED APPEARANCE.

                         END OF SECTION