Skip to main content

Historic Preservation - Technical Procedures

Spectitle:

Stripping And Repainting Metal Doors

Procedure code:

0810001R

Source:

National Capitol Region Specifications

Division:

Doors And Windows

Section:

Metal Doors & Frames

Last Modified:

04/11/2014

Details:

Stripping And Repainting Metal Doors



STRIPPING AND REPAINTING METAL DOORS


PART 1---GENERAL

1.01 SUMMARY

    A.   This procedure includes guidance on stripping, surface
         preparation, priming and finishing of scratched painted
         metal doors.

    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 DEFINITIONS
         
    A.   "Paint" as used herein means all coating systems
         materials, including primers, emulsions, enamels, sealers
         and fillers, and other applied materials whether used as
         prime, intermediate or finish coats.

1.03 SUBMITTALS

    A.   Product Data:  Submit manufacturer s technical
         information including paint label analysis and
         application instructions for each material proposed for
         use.
         
         1.   Finish color and primer tints shall be as approved
              by the RHPO.
         
         2.   Prior to beginning work, the Contractor will submit
              two samples of each color with texture and gloss
              level to simulate actual conditions for review by
              the Contracting Officer.  Resubmit samples as
              requested by the Contracting Officer until an
              acceptable sheen, color, and texture of the paint
              if achieved.
         
         3.   Base coats and undercoats of paint enamel shall be
              tinted or shaded as directed.  Tinting and shading
              colors are not to be considered as separate colors
              and no extra or additional payment will be made for
              such tinting and shading work.

1.04 QUALITY ASSURANCE

    A.   Regulatory Requirements:  Provide primers and other
         undercoat paint produced by same manufacturer as finish
         coats.  Use only thinners approved by paint manufacturer,
         and use only within recommended limits.

    B.   Mock-Ups:  Prior to beginning work, the Contractor shall
         prepare on-site color mock-ups for the Owner s approval.
   
         1.   One painted metal office door.
         
         2.   Mock-ups shall be prepared until a satisfactory
              sample is approved by the Contracting Officer.
              Retain acceptable mock-ups in undisturbed
              condition, suitably marked, during construction as
              a standard for judging completed work.
         
         3.   The colors and surface finishes of the approved
              mock-ups shall be matched in the completed work by
              the Contractor who shall do all mixing and blending
              necessary to achieve this result.

1.05 DELIVERY, STORAGE AND HANDLING

    A.   Storage and Protection:  

         1.   Storage space for all materials used on the job
              shall be designated by the Contracting Officer.
              The Contractor shall provide a lock and key, and
              shall secure local Fire Department permit if needed
              for the storage and use of paint materials.  

         2.   Paints and other flammable products shall not be
              stored in the building.  Keep storage space neat
              and clean.  Soiled or used rags, waste and trash
              shall be removed from the job site daily, at the
              end of each day's work, and every precaution shall
              be taken to avoid the danger of fire.

1.06 PROJECT/SITE CONDITIONS

    A.   Environmental Requirements:
   
         1.   Ventilation in mixing and application areas shall
              be suitable for application, drying, and curing of
              paint and safe dissipation of solvent fumes.
         
         2.   Air shall not be dust-laden prior to, during or
              after painting operations.

1.07 SEQUENCING AND SCHEDULING

    A.   Coordinating Work:   Coordinate painting so that it will
         not conflict with the work of other trades and building
         operations.

PART 2---PRODUCTS

2.01    Manufacturers

A: The Sherwin Williams Co.                   www.sherwin-williams.com

            B: Devcon Corporation                               www.devcon.com

            C: Benjamin Moore                                     www.benjaminmoore.com

            D. Glidden Coatings and Resins               www.glidden.com

E.  Klean Strip, Inc.                                       www.kleanstrip.com

           F.  Govgeon Brothers, Inc.                           www.gougeon.com

            G. Duron                                                        www.duron.com

I.  All painting specifications for General Services Administration historic properties shall include the following clause in the Special Conditions Section:

��������� All paint will be custom tinted by computer matching.  Color selection must follow the codes indicated on the finish schedule.  Accurate color reproduction is accomplished by matching modern paints to the sample color chips corresponding to each code.  There are two coding systems for describing color.  They are the Munsell and Plochere color systems.

 The contractor must obtain the coded color chips for each color indicated in the finish schedule.  Chips are to be purchased directly from the following firm(s):

Munsell Color System                                www.munsell.com

Plochere Color System                               www.plochere.com

         1.   Chips each range around $10.  Coded color chips must be computer matched.  Major paint manufacturers known to be capable of computer color matching include Sherwin Williams, Benjamin Moore, and Duron.  Visual matching is not acceptable.

          2.   Written verification of having had coded color chips computer matched to paints will be submitted to the Contracting Officer 48 hours prior to painting.  These verifications must be written on paint manufacturer's stationery and hand signed by the individual conducting the computer color matching.  No substitution for coded colors will be accepted."

2.02 MATERIALS

A.   Provide best quality grade of various types of coatings as regularly manufactured by acceptable paint materials manufacturers, such as Benjamin Moore, Sherwin Williams, Glidden Coatings and Resins, or approved equal. Materials not displaying manufacturer's identification as a standard, best-grade product will not be acceptable.

        B.   Color Pigments:  Pure, non-fading, applicable types to suit substrates and service indicated.

         1.   Lead content in pigment of new paints you are to be applying is limited to not more than 0.5% lead, as lead metal based on the total non-volatile (dry-film) of paint by weight. This definition may be updated in the future, and regulations limiting lead in coatings may be even more stringent in certain localities.  You need to properly research pertinent standards before utilizing any such product.  Regulatory information as well as recommendations for alternative or equivalent chemicals may be requested from the Environmental Protection Agency (EPA) Regional Office and/or the State Office of Environmental Quality.

    D.   Stripper: Methylene chloride paint stripper such as "Kwick Superfast Paint and Varnish Remover" (Klean Strip, Inc.), or approved equal.

         NOTE:  THE CHEMICAL METHYLENE CHLORIDE IS BANNED IN SOME         STATES SUCH AS CALIFORNIA.  REGULATORY INFORMATION AS WELL AS ALTERNATIVE OR EQUIVALENT CHEMICALS MAY BE REQUESTED FROM THE ENVIRONMENTAL PROTECTION AGENCY (EPA) REGIONAL OFFICE AND/OR THE STATE OFFICE OF ENVIRONMENTAL QUALITY.

    E.   Epoxy Based Filler (for scratched metal doors): Govgeon Brothers, Inc. #407 Low Density Filler mixed with #105/205 Resin-Hardener system, or approved equal.



2.03 MIXES

    A.   Mix and prepare painting materials in accordance with
         manufacturer s directions.
   
    B.   Maintain containers used in mixing and application of
         paint in a clean condition, free of foreign materials and
         residue.

    C.   Stir materials before application to produce a mixture of
         uniform density, and stir as required during application.
         Do not stir surface film into material.  Remove film and,
         if necessary, strain material before using.


PART 3---EXECUTION

3.01 EXAMINATION

    A.   Verification of Conditions:  

         1.   Inspect the work for any serious defects or
              conditions which would interfere or prevent a
              satisfactory application of materials under this
              Section.  

         2.   Do not proceed with the work until corrections have
              been made.   Application shall be deemed acceptance
              of the related surfaces.
   
         3.   No painting shall be performed until surfaces have
              been properly prepared.  Beginning work shall
              constitute acceptance of base surfaces as found and
              any subsequent failure or development of defects in
              the painting work shall be corrected at no
              additional expense to the Government.

3.02 PREPARATION

    A.   Protection:

         1.   Do not paint over any code-required labels, such as
              Underwriters' Laboratories and Factory Mutual, or
              any equipment identification, performance rating,
              name, or nomenclature plates.

         2.   Caution shall be observed in painting not to daub
              any bright or plated work adjacent to painted areas
              and not to spatter marble or other finished work.
         
         3.   Protect work of other trades, whether to be painted
              or not, against damage by painting and finishing
              work.  Correct any damage by cleaning, repainting,
              repairing or replacing, as acceptable to the
              Contracting Officer.
         
         4.   Provide "Wet Paint" signs as required to protect
              newly painted finishes.  Remove temporary
              protective wrappings provided by others for
              protection of their work, after completion of
              painting operations.
         
         5.   At completion of work of other trades, touch-up and
              restore all damaged or defaced painting work
              specified herein.

    B.   Surface Preparation:

            1.   Perform preparation and cleaning procedures in accordance with paint manufacturer's instructions and as herein specified, for each particular substrate condition.

     CAUTION: PAINT MAY CONTAIN LEAD, AND SURFACES SHOULD BE TESTED FOR LEAD CONTENT IN ADVANCE OF WORK.  IF THE TEST IS POSITIVE AND YOU ARE NOT CERTIFIED TO HANDLE LEAD-ABATEMENT TASKS IT IS ILLEGAL FOR YOU TO PERFORM FURTHER WORK. REGULATIONS PROVIDED BY THE EPA REGIONAL OFFICE AND/OR THE STATE OFFICE OF ENVIRONMENTAL QUALITY CONCERNING THE HANDLING OF LEAD-BASE PAINT MUST BE FOLLOWED. See http://www2.epa.gov/lead/renovation-repair-and-painting-program

The regulations limiting lead in coatings may be even more stringent in certain localities.  You need to properly research pertinent standards before utilizing any such product.  Regulatory information as well as recommendations for alternative or equivalent chemicals may be requested from the Environmental Protection Agency (EPA) Regional Office and/or the State Office of Environmental Quality.



         2.   Provide barrier coats over incompatible primers or
              remove and reprime as required.  Notify Contracting
              Officer in writing of any anticipated problems in
              using the specified coating systems with substrates
              primed by others.
         
         3.   Remove hardware, hardware accessories, machined
              surfaces, plates, lighting fixtures, and similar
              items in place and not to be finish-painted, or
              provide surface-applied protection prior to surface
              preparation and painting operations.  Remove, if
              necessary, for complete painting of items and
              adjacent surfaces.  Following completion of
              painting of each space or area, reinstall removed
              items.
         
         4.   Clean surfaces to be painted before applying paint
              or surface treatments.  Remove oil and grease prior
              to mechanical cleaning.  Prior to painting,
              surfaces shall be clean, dry and free of foreign
              materials which will adversely affect adhesion of
              appearance of the applied coating.
         
         5.   Program cleaning and painting so that contaminants
              from cleaning process will not fall onto wet,
              newly-painted surfaces.
         
3.03 ERECTION, INSTALLATION, APPLICATION

    A.   Stripping Scratched Painted Metal Interior Doors:
   
         1.   Apply stripping materials to entire surface in
              accordance with manufacturer's recommendations and
              to match the results obtained in the approved test
              applications.  Provide neutralizers, cleaning
              agents and other related materials recommended by
              the stripper manufacturer.
             
         2.   Perform stripping in a manner which results in
              uniform stripping of all surfaces without streaking
              or damage to substrate.  Use tools that will not
              gouge or disfigure the substrate.
             
         3.   On completion of stripping, clean all residue from
              treated surfaces with damp sponge and neutralize
              area as required.  Surface shall be free of oil and
              containments that may affect the adhesion of filler
              and paint.
             
         4.   If substrate exhibits superficial scratches, polish
              out in an even plane with successively finer grades
              of wet and dry sandpaper (#180-#400).  Fill gouges
              and deep scratches with epoxy filler prior to
              sanding in accordance with manufacturer's
              recommendations.
             
         5.   Upon completion of filling and sanding, wipe
              surfaces with a tack cloth.

    B.   Repainting Metal Doors:

         1.   General:  Apply paint in accordance with
              manufacturer's directions.  Use applicators and
              techniques best suited for substrate and type of
              material being applied.
   
              a.   Paint colors, surface treatments, and
                   finishes, to be approved by RHPO.

              b.   Provide finish coats which are compatible with
                   prime paints used.
         
              c.   Apply additional coats when undercoats, stains
                   or other conditions show through final coat of
                   paint, until paint film is of uniform finish,
                   color and appearance.  Give special attention
                   to ensure that surfaces, including edges,
                   corners, crevices, welds, and exposed
                   fasteners receive a dry film thickness
                   equivalent to that of flat surfaces.
         
         2.   Scheduling Painting:  Apply first-coat material to
              surfaces that have been cleaned, pretreated or
              otherwise prepared for painting as soon as
              practicable after preparation and before subsequent
              surface deterioration.
   
              a.   Allow sufficient time between successive
                   coatings to permit proper drying.  

              b.   Do not recoat until paint has dried to a firm,
                   undeformed, unsticky surface under moderate
                   thumb pressure, and application of another
                   coat of paint does not cause lifting or loss
                   of adhesion of the undercoat.
         
         3.   Minimum Coating Thickness:  Apply materials at not
              less than manufacturer's recommended spreading
              rate, to establish a total dry film thickness as
              indicated or, if not indicated, as recommended by
              coating manufacturer.
   
         4.   Prime Coats:  

              a.   Apply prime coat on material which is required
                   to be painted or finished, and which has not
                   already been prime coated.
   
              b.   Recoat primed and sealed surfaces where there
                   is evidence of suction spots or unsealed areas
                   in first coat, to assure a finish coat with no
                   burn-through or other defects due to
                   insufficient sealing.
         
         5.   Pigmented (Opaque) Finishes:  Completely cover to
              provide an opaque, smooth surface of uniform
              finish, color, appearance and coverage.  
              Cloudiness, spotting, holidays, laps, brush marks,
              runs, sags, ropiness or other surface imperfections
              will not be acceptable.
   
         6.   Completed Work:  Match approved samples for color,
              texture and coverage.  Remove, refinish or repaint
              work not in compliance with specified requirements.
   
3.04 ADJUSTING/CLEANING

    A.   Clean-Up:  

         1.   During progress of work, remove from site discarded
              paint materials, rubbish, cans and rags at end of
              each work day.
   
         2.   Upon completion of painting work, clean window
              glass and other paint-spattered surfaces.  Remove
              spattered paint by proper methods of washing and
              scraping, using care not to scratch or otherwise
              damage finished surfaces.

                         END OF SECTION