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Historic Preservation - Technical Procedures

Spectitle:

Biennial Cleaning And Stain Removal Of Woodwork

Procedure code:

0640002P

Source:

National Capitol Region Specifications

Division:

Wood And Plastics

Section:

Architectural Woodwork

Last Modified:

02/24/2012

Details:

Biennial Cleaning And Stain Removal Of Woodwork



BIENNIAL CLEANING AND STAIN REMOVAL OF WOODWORK


PART 1---GENERAL

1.01 SUMMARY

    A.   This procedure includes guidance on the routine dusting
         and cleaning of wood surfaces.

    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.   Quality Assurance

         4.   Delivery, Storage and Handling

         5.   Project/Site Conditions

         6.   Sequencing and Scheduling

         7.   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).

1.02 SUBMITTALS

    A.   Samples: Submit sample of stain and wood filler for
         approval of Contracting Officer.


PART 2---PRODUCTS

2.01 MANUFACTURERS

    A.   Butcher Polish Company
         120 Bartlett Street
         Marlborough, MA
         617/481-5700

2.02 MATERIALS

    NOTE:  Chemical products are sometimes sold under a common
    name.  This usually means that the substance is not as pure as
    the same chemical sold under its chemical name.  The grade of
    purity of common name substances, however, is usually adequate
    for stain removal work, and these products should be purchased
    when available, as they tend to be less expensive.  Common
    names are indicated below by an asterisk (*).

    A.   Solvent: Mineral spirits, turpentine or denatured
         alcohol.

         Mineral Spirits:

         1.   A petroleum distillate that is used especially as a
              paint or varnish thinner.

         2.   Other chemical or common names include Benzine* (not
              Benzene); Naphtha*; Petroleum spirits*; Solvent
              naphtha*.

         3.   Potential Hazards:  TOXIC AND FLAMMABLE.

         4.   Safety Precautions:

              a.   AVOID REPEATED OR PROLONGED SKIN CONTACT.

              b.   ALWAYS wear rubber gloves when handling
                   mineral spirits.

              c.   If any chemical is splashed onto the skin,
                   wash immediately with soap and water.

         5.   Available from construction specialties
              distributor, hardware store, paint store, or
              printer's supply distributor.

         Turpentine:

         1.   Typically used as a solvent and thinner.

         2.   Potential Hazards:  TOXIC AND FLAMMABLE.

         3.   Safety Precautions:

              a.   Work in a well ventilated area.  

              b.   Observe safety rules as turpentine is
                   flammable, and the fumes can trip an
                   ionization smoke detection system.  

              c.   Store soiled cloths in a metal safety
                   container to guard against spontaneous
                   combustion.

              d.   Available from hardware store or paint store.

         Denatured Alcohol:

         1.   Other chemical or common names include Methylated
              spirit*.

         2.   Potential hazards:  TOXIC AND FLAMMABLE.

         3.   Available from hardware store, paint store or
              printer's supply distributor.

         4.   Denatured alcohol should be a satisfactory
              substitute for ethyl alcohol for stain removing
              purposes.

    B.   Cloth: Clean cotton rags

    C.   Sand paper: 3 grades, finest grade 00

    D.   Wax: Butcher's wax, such as "Butcher's paste Wax (Butcher
         Polish Company)

    E.   Bleach: Standard household bleach

         1.   An unstable salt produced usually in aqueous
              solution and used as a bleaching and disinfecting
              agent.

         2.   Other chemical or common names include Bleaching
              solution*; Household bleach*; Laundry bleach*; Sodium
              Hypochlorite; Solution of chlorinated soda*.

         3.   Potential Hazards:  CORROSIVE TO FLESH.

         4.   Available from chemical supply house, grocery store
              or supermarket, hardware store or janitorial supply
              distributor.

    F.   Oil Stain and Thinner: To achieve a match between stained
         areas and original wood finish.

    G.   Shellac burn-in sticks

    H.   Clean, potable water


PART 3---EXECUTION

3.01 ERECTION, INSTALLATION, APPLICATION

    A.   Dust with a solvent-treated soft cloth.

    B.   Dry rub with a soft cloth to maintain the polish, rubbing
         along the grain of the wood.

    C.   Stain and Spot Removal: Stains may be cleaned by promptly
         wiping with cloth dampened in clear water or rubbing with
         cloth dampened in solvent.  Dry the wood with a soft
         cloth.  White spots may be removed by rubbing them with
         a small amount of linseed oil.

    D.   Old Stain Removal: If water and solvent fail to remove
         dark stains, brush full-strength bleach onto stained area
         and allow to stand one minute.  Use clean, cotton rags to
         keep the bleach from running.  TEST BLEACH IN A SMALL
         INCONSPICUOUS AREA PRIOR TO USING THE BLEACH ON THE LARGE
         STAIN TO ENSURE THAT IT WILL NOT DAMAGE THE WOOD.

         1.   Rinse bleach completely from wood.

         2.   If area is too light in color, carefully apply a
              small amount of stain to match original wood
              finish.

         3.   Lightly sand area and apply wax following
              manufacturer's instructions using clean cotton
              rags, rubbing in direction of wood grain.

    E.   Biennial Cleaning:

         1.   Damp-wipe woodwork with a soft cloth dampened in
              clear water.

         2.   Promptly dry the wood with a soft cloth, rubbing
              along the grain.

         3.   Polish by dry rubbing with a soft cloth.

    F.   Fill scratches and gouges with shellac burn-in sticks
         matching color to the wood stain.

    G.   Apply wax following manufacturer's instructions using
         clean cotton rags, rubbing in direction of wood grain.

    H.   See also 06400-01-P and 06400-01-R for guidance on the
         general cleaning of wood surfaces.

                         END OF SECTION