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Historic Preservation - Technical Procedures

Spectitle:

Stripping, Staining And Polishing Wood Floors

Procedure code:

0955002R

Source:

National Capitol Region Specifications

Division:

Finishes

Section:

Wood Flooring

Last Modified:

02/24/2012

Details:

Stripping, Staining And Polishing Wood Floors



STRIPPING, STAINING AND POLISHING WOOD FLOORS


PART 1---GENERAL

1.01 SUMMARY

    A.   This procedure includes guidance on stripping, staining
         and refinishing floors.

    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 PROJECT/SITE CONDITIONS

    A.   Existing Conditions: Determine that surfaces to which
         finishes are to be applied are even, smooth, sound,
         clean, dry and free from defects affecting proper
         application. Correct or report defective surfaces to
         Contracting Officer.


PART 2---PRODUCTS

2.01 MANUFACTURERS

    A.   Hillyard Chemical Company
         800/365-1555

    B.   The Sherwin Williams Company
         101 Prospect Ave. N.W.
         Cleveland, OH  44101
         216/566-2000

2.02 MATERIALS

    A.   Sealer: Penetrating type, pliable, wood-hardening
         finish/sealer such as "Penetrating Seal #21" (Hillyard
         Chemical Company), or approved equal.

    B.   Stain: Penetrating, permanent oil-based stain such as
         "Oil Stain" (Sherwin Williams), or approved equal,
         colored to match existing floor stain.

    C.   Clean, soft cloths

    D.   Fasteners: Nails and screws, select material, type, size
         and finish to match original installation.

    E.   Sandpaper: 3 grades, finest grade 00.

2.03 EQUIPMENT

    A.   Hand-held Orbital Sanders (NO ROTARY OR DISK SANDERS)

    B.   Machine belt or orbital sander (NO ROTARY OR DISK
         SANDERS)

    C.   Stiff bristle brushes


PART 3---EXECUTION

3.01 PREPARATION

    A.   Surface Preparation:

         1.   Carefully remove any floor mounted elements and
              store in location selected by the Contracting
              Officer.

         2.   Protect floor borders from damage during sanding
              and other floor refinishing operations.

         3.   Machine sand the wood floor to remove stains,
              indentations and old finish.

              NOTE:  BELT AND ORBITAL SANDERS SHOULD ONLY BE USED
              BY EXPERIENCED PERSONNEL.  THEY WORK VERY QUICKLY
              AND IT IS EASY TO DAMAGE THE WOOD SUBSTRATE IF THEY
              ARE NOT USED CAREFULLY.  For additional guidance on
              stripping wood floors and precautions to take when
              operating sanding equipment on wood, see 06300-02-
              R, 06400-10-R and 09910-01-S.

              a.   Sand floor in direction of wood grain. Remove
                   only the amount of wood necessary to remove
                   old finish but no more than 1/16" depth.

              b.   Use hand-held sanders at edges of floor.

              c.   Final sanding shall be with 00 grade
                   sandpaper.

              d.   Vacuum clean, remove sanding dusted with tack
                   cloth, and immediately apply stain finish.

              e.   Do not allow traffic on floor until final
                   finishing is complete.

3.02 ERECTION, INSTALLATION, APPLICATION

    A.   Apply stain to wood floor to obtain a finish to match the
         original.

    B.   Apply floor sealer (two coats) in accordance with
         manufacturer's printed instructions, including machine
         buffing with steel wool as recommended by the
         manufacturer.

    C.   Reinstall floor mounted accessories in original
         locations. Protect wood flooring during reinstallation.

    D.   For guidance on cleaning and maintaining woodwork and
         wood floors, see 06400-02-P, 06400-01-R, and 06400-01-P.

                         END OF SECTION