Burke Flooring Mercer Stair Nosing - Manual (Page 2)

Revision 1 - Released August, 2011 © Burke Flooring, A Division of Burke Industries
570-XXX: Single Undercut Rubber Stair Nosing for use with
1/4” (6.35 mm) carpet applications.
1-3/4” (4.44 cm) square nose configuration,
1-15/16” (4.92 cm) tread depth surface.
10 each 12 ft. (120 ft.) per carton at 75 lbs.
575-XXX: Overlap Rubber Stair Nosing for use with 1/8”
(3.17 mm) resilient applications.
1-7/8” (4.76 cm) square nose configuration,
3” (7.62 cm) ribbed tread depth surface.
10 each 12 ft. (120 ft.) per carton at 75 lbs.
580-XXX: Butt-to Rubber Stair Nosing for use with 1/8”
(3.17 mm) resilient applications.
1-3/8” (3.49 cm) square nose configuration,
2” (5.08 cm) ribbed tread depth surface.
10 each 12 ft. (120 ft.) per carton at 38 lbs.
585-XXX: Top-set Rubber Stair Nosing for use with .080”
(2.03 mm), 1/8” (3.17 mm) or 1/4” (6.35 mm) resilient
flooring materials.
1-1/2” (3.81 cm) hinged square nose configuration,
3-3/4” (9.52 cm) ribbed tread depth surface.
10 each 12 ft. (120 ft.) per carton at 72 lbs.
ESN-XXX: Endura Butt-to Rubber Stair Nosing for use with
.100” (2.54 mm) and 1/8” (3.17 mm) resilient flooring
materials.
2-1/8” (5.39 cm) square nose configuration,
4” (10.16 cm) smooth tread depth surface.
10 each 12 ft. (120 ft.) per carton at 72 lbs.
2. PRODUCT PERFORMANCE AND TECHNICAL
DATA
2.1 Hardness: ASTM D 2240: ≥ 85 Shore A
2.2 Abrasion Resistance: ASTM D 3389: < 1.0 gm loss
2.3 Slip Resistance: ASTM D 2047: COF ≥ 0.5
2.4 Color Heat Stability: ASTM F 1514: < 8.0 E
2.5 Static Load Limit: ASTM F 970: 250 PSI
2.6 Fire Resistance:
2.6.1 ASTM E 648/NFPA 253: Class 1
(Critical Radiant Flux)
2.6.2 ASTM E 662/NFPA 258: less than 450
(Smoke Density)
2.7 Chemical Resistance: ASTM F 925: Passed - 5% Acetic
acid, 70% Isopropyl alcohol, Sodium hydroxide solution
(5% NaOH), Hydrochloric acid solution (5% HCl), Sulfuric
acid solution (5% H2SO4), Household ammonia solution (5%
NH4OH), Household bleach (5.25% NaOCl), Disinfectant
cleaner (5% active phenol)
3. INSTALLATION
The installation of Burke Rubber Stair Nosings should not
begin until the work of all other trades has been completed,
especially overhead trades. Areas to receive stair nosings shall
be clean, fully enclosed, weather-tight, and maintained at a
uniform temperature of at least 70°F for 24 hours before,
during, and after the installation is completed. The stair
nosings and adhesives shall be conditioned in the same
manner. Stair steps shall be smooth, flat, permanently dry,
clean and free of all foreign material, such as dust, paint,
grease, oils, solvents, curing and hardening compounds,
sealers, asphalt, and old adhesive residue. Stair Nosings may
be installed on any smooth, dry interior step. Do not install on
exterior steps subject to weather. Stair shape shall conform
closely to stair tread contour, especially where the flat part of
the tread joins the nosing. An epoxy caulking nose filler shall
be applied to ensure a tight fit and eliminate any open spaces
between the step edge and stair tread nosing. Stair Nosings
shall be trimmed to within 1/16" of the stringer to allow for
expansion. Adhesives shall be applied per Burke’s
instructions. Stair Nosings shall be rolled, with a J-hand roller,
after installation, to ensure proper bonding.
3.1. Adhesives:
Burke #BR-711 Flooring & Tread Adhesive:
Porous Substrates: 1/16" square-notched trowel
(Approximately 125 - 150 sq ft /gal)
Non-Porous Substrates: 1/16" V-notched trowel
(Approximately 150 - 175 sq ft /gal)
Important: This adhesive is substrate porosity
sensitive. Determine if the substrate is porous or
non-porous prior to application of the adhesive and
installation of the flooring products and follow the
appropriate instructions.
Burke #BR-721 Two-Part Epoxy Adhesive:
Trowel: 1/16" square-notched trowel
(Approximately 125 - 150 sq. ft/gal)
Burke #BR-725 Two-Part Urethane Adhesive:
Trowel: 1/16" square-notched trowel
(Approximately 125 - 150 sq. ft/gal)
Burke #BR-715 Two-Part Epoxy Caulking
Compound:
Application: Gun, knife, or 13-1/2 ounce cartridge
(Use Burke dual-cartridge dispenser gun with
cartridge)
Coverage: Approx. 250 linear ft/gal or 50 linear with
a 1/4" diameter bead per 13-1/2 ounce cartridge.