DSLBD Office Fit Out - Broughton Construction Company

3.03 APPLICATION
d. Remove mildew from impervious surfaces by scrubbing with a tri-sodium phosphate
bleach solution acceptable to paint manufacturer. Rinse area with clean, clear water;
allow surface to thoroughly dry.
2. Gypsum Wallboard Surfaces:
a. Fill narrow, shallow cracks and small holes with spackling compound.
b. Rake deep, wide cracks and deep holes; dampen with clean, clear water and fill with thin
layers of joint cement.
3. Previously Painted Gypsum Wallboard Surfaces:
a. Surface defects shall be filled, sanded, and spot primed. Cracks and holes shall be cut
back and doubled filled, sanded, and spot primed.
b. Remove cracking, flaking, and peeling paint by light sanding and spot prime.
c. Glossy surfaces shall be sanded or otherwise treated prior to application of coating
systems.
4. Metal Surfaces:
a. Surfaces must be free of residual deposits of grease, rust, scale, dirt, dust, and oil.
b. For shop primed surfaces, sand and scrape to remove loose primer and rust. Feather
edges to make touch-up patches inconspicuous. Prime bare steel surfaces.
c. For surfaces not shop primed, remove grease, scale, dirt, and rust. Surfaces shall be
cleaned with hand or power tools to produce a clean, smooth surface. Where heavy
coatings of scale are evident, remove by wire brushing or abrasive grit blasting.
Immediately apply prime coat as scheduled.
d. Prepare surfaces of hollow metal doors and frames including tops, bottoms, and surfaces
normally concealed from view as described above.
5. Previously Finished MetalSurfaces:
a. Remove surface contamination by solvent cleaning, steam or high pressure water to
remove contamination and oils. Scrape and sand to remove loose paint. Feather edges
to make patches inconspicuous.
b. Surfaces shall be dulled by sanding. The surface shall be blown off with compressed air.
6. Cast-In-Place and/or Precast Concrete Surfaces:
a. Allow concrete to cure for 60 to 90 days prior to painting.
b. Remove loose particles with stiff brush.
c. Remove dirt, scale, efflorescence, powders, laitance, parting compounds, and other
foreign matter.
d. Remove oil and grease with a solution of tri-sodium phosphate; rinse well and allow to
dry.
e. Wash stains caused by weathering or corroding metals with a sodium metasilicate
solution after thoroughly wetting with clean, clear water; allow surface to thoroughly dry.
f. Fill small surface pock marks and air holes with an exterior latex base prime and fill
material. Thoroughly brush or rub over surface and let dry for not less than 24 hours
before applying paint.
7. Wood Surfaces:
a. Sand wood surfaces and edges smooth and even before finishing or painting and
between coats. Remove dust after each sanding.
b. Remove residue from knots, pitch streaks, cracks, open joints and sappy spots. Knots
shall be coated with a pigmented stain sealer prior to painting. Avoid use of shellac as
an undercoat.
c. Countersink nails and fill nail holes, cracks, open joints and other defects with tinted putty
or wood filler after priming is dry and before second coat.
d. Prior to installation, apply backprime to woodwork scheduled to receive a field applied
painted finish.
e. Seal top, bottom, and edges of wood doors to be painted with primer.
A. General Requirements:
PAINTING 09 91 00-3