U.S. General Services Administration
Historic Preservation Technical Procedures
08100-01
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. Benjamin Moore Co.
51 Chestnut Ridge Road
Montvale, NJ 07645
201/573-9600
B. The Sherwin-Williams Company
101 Prospect Ave. N.W.
Cleveland, OH 44101
216/566-2000
C. Glidden Coatings and Resins
Div. of SCM Corp.
925 Euclid Avenue
Cleveland, OH 44115
216/344-8216
D. 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.
E. 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
2441 N. Calvert Street
Baltimore, MD 21218
(301) 243-2171
Plochere Color System
1818 Hyperion Avenue
Los Angeles, CA 90002
(213) 661-0070
1. Chips range from $2 to $7. 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."
F. Klean Strip, Inc.
Division of W.M. Barr Inc.
Memphis, Tennessee
G. Pyrock Chemical Company
Long Island City, New York
H. Govgeon Brothers, Inc.
Bay City, Michigan
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, if any, is limited to
contain not more than 0.5% lead, as lead metal
based on the total non-volatile (dry-film) of paint
by weight.
C. General:
1. Paint shall be well ground, shall not settle badly,
cake or thicken in the container, shall be readily
broken with a paddle to a smooth consistency and
shall have easy brushing properties.
2. Paint shall arrive on the job ready-mixed except
for tinting of undercoats and possible thinning.
3. All thinning and tinting materials, solvents and
other materials used with paint shall be the best
quality and type recommended by the paint
manufacturer.
4. Application equipment is not required to be new,
but shall be adequate and commensurate for the work
and workmanship required herein.
D. Stripper: Methylene chloride paint stripper such as
"Kwick Superfast Paint and Varnish Remover" (Klean Strip,
Inc.), "Rock Miracle" (Pyrock Chemical Company), 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): #407 Low
Density Filler mixed with #105/205 Resin-Hardener system
(Govgeon Brothers, Inc.), 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. FOLLOW EPA
REGULATIONS AND SAFETY GUIDELINES INCLUDING THOSE
REQUIRED FOR THE REMOVAL AND DISPOSAL OF LEAD-BASED
PAINT.
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