Historic Preservation - Technical Procedures
- Surface Preparation Guidelines For Brick, Metal, Wood And Plaster
- Procedure code:
- National Capitol Region Spec - Old Executive Office Building
- Last Modified:
- Surface Preparation Guidelines For Brick, Metal, Wood And Plaster
- Last Modified:
SURFACE PREPARATION GUIDELINES FOR PAINTING BRICK, METAL, WOOD AND
A. This procedure includes guidance on preparing various
surface types for repainting. These include brick,
metal, wood and plaster.
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
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
A. Red Devil, Inc.
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. 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
3. Potential Hazards: TOXIC AND FLAMMABLE.
4. Safety Precautions:
a. AVOID REPEATED OR PROLONGED SKIN CONTACT.
b. ALWAYS wear rubber gloves when handling
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.
B. Water-soluble detergent
C. Clean, potable water
E. Trisodium Phosphate (TSP)
NOTE: THIS CHEMICAL 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.
1. Strong base-type powdered cleaning material sold
under brand names.
2. Other chemical or common names include Sodium
Orthophosphate; Tribasic sodium phosphate;
Trisodium orthophosphate; TSP*; Phosphate of soda*;
(also sold under brand names such as Red Devil).
3. Potential Hazards: CORROSIVE TO FLESH.
4. Available from chemical supply house, grocery store
or supermarket or hardware store.
F. Chemical deglosser
G. White shellac, or other approved knot sealer
I. Varnish, or other approved sealer
A. Wood and metal scrapers
B. Wire brushes (non-ferrous bristle)
C. Stiff bristle brushes
A. Protection: 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.
B. Surface Preparation: Do not paint over dirt, rust, scale,
grease, moisture, scuffed surfaces, or conditions
otherwise detrimental to formation of a durable paint
3.02 ERECTION, INSTALLATION, APPLICATION
A. Perform preparation and cleaning procedures in accordance
with paint manufacturer's instructions and as herein
specified, for each particular substrate condition.
B. Clean surfaces to be painted before applying paint or
surface treatments. Remove oil and grease prior to
mechanical cleaning. Program cleaning and painting so
that contaminants from cleaning process will not fall
onto wet, newly-painted surfaces.
1. Brick: Clean brick surfaces to be painted for loose
or peeling paint, dirt, oil, or other foreign
substances with scrapers, stiff bristle brushes and
mineral spirits as required. Wash entire surface
with a water-soluble detergent and rinse thoroughly
with clean water to remove cleaner residue and
2. Ornamental Metal: Clean ornamental metal surfaces
to be painted of dirt, oil or other foreign
substances with scrapers and solvent cleaners as
required. Remove loose or peeling paint by gently
wire brushing surfaces. Sandpaper smooth any rough
edges created by removal of peeling or loose paint
to create an even plane across surface.
3. Ferrous Metals: Clean ferrous surfaces, which are
not galvanized or shop-coated, of oil, grease,
dirt, loose mill scale and other foreign substances
by solvent or mechanical cleaning.
a. Touch-up shop-applied prime coats wherever
damaged or bare, where required by other
sections of these specifications. Clean and
touch-up with same type shop primer.
4. Galvanized Surfaces: Clean free of oil and surface
contaminants with non-petroleum-based solvent.
5. New Wood:
a. Clean wood surfaces to be painted of dirt,
oil, or other foreign substances with
scrapers, mineral spirits, and sandpaper, as
required. Sandpaper smooth those finished
surfaces exposed to view, and dust off. Scrape
and clean small, dry, seasoned knots and apply
thin coat of white shellac or other
recommended knot sealer, before application of
priming coat. After priming, fill holes and
imperfections in finish surfaces with putty or
plastic wood-filler. Sandpaper smooth when
b. Prime, stain or seal wood required to be job-
painted immediately upon delivery to job.
Prime edges, ends, faces, undersides, and
backsides of such wood, including cabinets,
counters, cases, and paneling.
c. When transparent finish is required, use spar
varnish for back priming.
d. Back prime paneling on interior partitions
only where masonry, plaster or other wet wall
construction occurs on backside.
e. Seal tops, bottoms, and cut-outs of unprimed
wood doors with a heavy coat of varnish or
equivalent sealer immediately upon delivery to
6. Existing Wood:
a. Scrape existing wood surfaces to be painted
with a flat blade scraper to remove all
peeling or blistering paint finish. Sand
surface to a smooth finish, flush with
contiguous surfaces. To ensure bonding of new
paint material, clean surfaces free of dirt,
oil, dust or other foreign substances with
trisodium phosphate (TSP) cleaning solution.
Rinse thoroughly with clean water to remove
cleaner residue and soil. Lightly sand or
treat existing surfaces with a chemical paint
b. Clean existing wood surfaces to receive a
clear finish with mineral spirits to remove
dirt, oil, or other foreign substances and
wipe with a clean cloth. Wipe entire surface
with a preimpregnated tack rag and immediately
a. Clean plaster surfaces to be painted for dirt,
oil or other foreign substances with scrapers,
mineral spirits and sandpaper. Wash entire
surface with a trisodium phosphate (TSP)
cleaning solution and rinse thoroughly with
clean water to remove cleaner residue and
b. Prepare plaster areas by first scraping the
entire surface to remove all loose paint of
finish plaster. Apply a bonding agent to
exposed areas and then apply complete skim
finish coat over the low areas to bring the
entire finished surface out flush with
adjacent firm and sound layers of plaster or
paint. Sandpaper smooth to create a flat plane
without bumps, cracks or depressions, ready to
E. Mix and prepare painting materials in accordance with
F. Store materials not in actual use in tightly covered
containers. Maintain containers used in storage, mixing
and application of paint in a clean condition, free of
foreign materials and residue.
G. 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.
A. During progress of work, remove from site discarded
materials, rubbish, cans and rags at end of each work
B. 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.
A. Protect work of other trades, whether to be painted or
not, against damage by painting and finishing work.
Correct any damage by cleaning, repairing or replacing,
and repainting, as acceptable to RHPO.
B. At the completion of work of other trades, touch-up and
restore all damaged or defaced painted surfaces.
END OF SECTION