Applying Paste Wax Over "Incralac" Coated Bronze
- Procedure code:
- Outdoor Sculpture Manual - Center For Public Buildings
- Metal Materials
- Last Modified:
APPLYING PASTE WAX OVER INCRALAC COATED BRONZE
A. This procedure includes guidance on applying a paste wax
to outdoor bronze metal currently coated with Incralac or
similar acrylic resin coating. The bronze may be either
architectural components or sculpture.
B. Paste wax helps to prolong the life of the coating.
Discolorations in the bronze may be disguised by adding
a pigment to the wax.
C. Wax annually (if exposure is severe, semi-annually.)
D. For general information on the characteristics, uses and
problems associated with bronze, see 05010-03-S.
A. Fisher Scientific Co.
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. Hog bristle stencil brushes, 2-inch diameter, 1-3/4 inch
bristle length, such as No. 996 in Industrial Soap
B. Clear white paste wax, such as Trewax clear, Butcher's
bowling alley wax, or approved equal. Trewax clear and
Butcher's bowling alley wax are mixtures of
microcrystalline wax, carnauba and a mild solvent, in
CAUTION: DO NOT USE CAR WAX, SIMONIZE OR OTHER EMULSION-
C. Powdered pigment, burnt umber and black
D. 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*;
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.
E. Gloves, disposable polyethylene or neoprene rubber (may
be ordered from Fisher Scientific Co.). Disposable
surgical gloves may also be used, but they are vulnerable
to organic solvents.
F. Clean, potable water
A. Small quart-size, galvanized metal pail or other clean
B. Spoon, and/or palette knife or spatula
C. Rags, soft, clean and lint-free
3.01 ERECTION, INSTALLATION, APPLICATION
A. Place approximately six ounces of paste wax into the
pail. Add about an equal amount of thinner (mineral
spirits or turpentine). If pigment is necessary, add
either umber, black or an appropriate mixture of the two
to give sufficient color to the mix.
B. Mix and blend well using the spatula and the brush,
adding more thinner if necessary to produce a thick
creamy consistency (about the consistency of a thick
soup). As the thinner evaporates, add more as necessary
to maintain a workable mix.
C. Apply the wax mixture thinly using the ends of the brush
hairs to work the mixture into the depths of forms and
textures. To apply the wax, use a perpendicular striking
motion with the brush rather than a stroking motion. Be
careful not to scratch the coating with the metal ferrule
of the brush.
D. When the solvent has evaporated, rub and polish the
surface with a clean cloth. A thin, polished coating of
wax will remain. If pigmented wax is used it can be
selectively removed according to the requirements of the
END OF SECTION