Skip to main content

Historic Preservation - Technical Procedures

Spectitle:

Cleaning And Refinishing Of Woodwork

Procedure code:

0640005R

Source:

National Capitol Region Specifications

Division:

Wood And Plastics

Section:

Architectural Woodwork

Last Modified:

10/23/2014

Details:

Cleaning And Refinishing Of Woodwork



CLEANING AND REFINISHING OF WOODWORK


PART 1---GENERAL

1.01 SUMMARY

    A.   This procedure includes guidance on cleaning and
         refinishing both shellacked and varnished woodwork.

    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).  

1.02 SUBMITTALS

    A.   Product Data: Submit product data for all materials
         selected that will be applied to existing woodwork.

    B.   Operation and Maintenance Data: Submit a dust control
         procedure.

1.03 QUALITY ASSURANCE

    A.   Field Samples: A sample area shall be restored and serve
         as a standard of quality in restoration of wood. The
         sample area will be restored by means of the approved
         process.

    B.   Each sample area must receive the approval of the
         Contracting Officer before a general application is made.


PART 2---PRODUCTS

2.01 MATERIALS

    A.   Wood Stain

    B.   Floor Varnish

    C.   Shellac

    D.   Alcohol

    E.   Paste Wax - Proprietary or job-mixed compound containing
         carnauba, beeswax, cadelilla, or ceresin mixed with
         turpentine.

    F.   Floor Wax

    G.   Wood Bleach: Solution of sodium perborate, hydrogen
         peroxide or proprietary mixture suitable for oak.

    H.   Wood Filler

    I.   Steel Wool

    J.   Sandpaper:  Extra Fine Grit.


PART 3---EXECUTION

3.01 PREPARATION

    A.   Protection: Mask all adjacent surfaces and protect other
         exposed surfaces in the work area.

    B.   Surface Preparation:

         1.   Select an inconspicuous area on which to test
              materials and application for each method type
              required. Test area must be approved by the
              Contracting Officer. After each test area has been
              prepared, receive approval from the Contracting
              Officer before commencing general application.

         2.   Fill any split in existing wood and sand smooth
              prior to sealer application.

3.02 ERECTION, INSTALLATION, APPLICATION

    A.   General:

         1.   Follow manufacturer's application instructions.

         2.   Final appearance of woodwork must be uniform in all
              respects.

    B.   Refinishing When Removal of Existing Shellac is Required:

         1.   Coat wood with denatured alcohol. Apply with soft
              cloth. Scrape up residue as quickly as possible.
              Repeat application of alcohol until all shellac is
              removed.

         2.   Sand smooth.

         3.   Apply one coat of shellac with soft cloth.

         4.   Apply mixture of shellac and alcohol with soft
              cloth and allow to dry overnight.

         5.   Apply liberal amount of paste wax with soft cloth
              and allow to dry.

         6.   Buff wood lightly with steel wool.

         7.   Buff wood with soft brush.

         8.   Polish with soft cloth.

         9.   Other processes may be used as long as final
              results conform to quality standards and give
              uniform appearance.

    C.   Refinishing When Removal of Existing Wax is Required:

         1.   Rub wood with a soft cloth moistened in turpentine.

         2.   Apply liberal amount of paste wax with soft cloth
              and allow to dry.

         3.   Polish wood with soft cloth.

    D.   Refinishing Wood Floor:

         1.   Remove existing finish by sanding two or three
              times until bare wood is exposed.

         2.   Repair scratched or broken boards. Do not replace
              boards unless approved by the Contracting Officer.

         3.   Clean area of dust and sawdust.

         4.   Apply stain of same color as existing. Allow to dry
              overnight.

         5.   Apply two coats of floor varnish.

         6.   Apply two coats of floor wax.

3.04 ADJUSTING/CLEANING

    A.   Wash woodwork with mild detergent and water.

    B.   Dry immediately with clean cloth.

    C.   Apply a liberal amount of paste wax and allow to dry.

                         END OF SECTION
 


woodwork, cleaning woodwork, refinishing woodwork, cleaning and refinishing woodwork