Burke Flooring Endura Round & Square - Manual (Page 2)

Revision 1 - Released March, 2011 © Burke Flooring, A Division of Burke Industries
Endura Square Raised Disk Pattern Solid and Speckled
Color Rubber Stair Treads [also available with visually-
impaired 2” (5.08 cm) wide contrasting color abrasive grit
strip]:
1.875" (4.76 cm) square nose configuration,
.170" (4.3 mm) to .130" (3.3 mm) tapered 13" (33 cm) tread
plate depth,
Lengths:
3’ (.91 m), 4' (1.22 m), 5' (1.52 m), and 6' (1.83 m)
Endura Uni-Step Round Raised Disk Pattern Solid Color
Rubber Stair Treads with Integrated Riser [also available
with visually-impaired 2” (5.08 cm) wide contrasting color
abrasive grit strip]:
19-1/2” (49.5 cm) overall depth
1.813" (4.6 cm) square nose configuration,
.188" (4.8 mm) to .158" (4.01 mm) tapered 12-1/2" (31.75 cm)
tread plate depth with 7” (17.8 cm) integrated riser,
Lengths:
3’ (.91 m), 4' (1.22 m), 5' (1.52 m), and 6' (1.83 m)
Endura Uni-Step Sculptured Surface Solid and Speckled
Color Rubber Stair Treads with Integrated Riser [also
available with visually-impaired 2” (5.08 cm) wide
contrasting color abrasive grit strip]:
20” (50.8 cm) overall depth
1.88" (4.8 cm) square nose configuration,
.188" (4.8 mm) to .158" (4.8 mm) tapered 13" (33 cm) tread
plate depth with 7” (17.8 cm) integrated riser,
Lengths:
3’ (.91 m), 4' (1.22 m), 5' (1.52 m), and 6' (1.83 m)
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 Treads should not
begin
until the work of all other trades has been completed,
especially overhead trades. Areas to receive stair treads 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
treads 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 Treads 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 treads shall be trimmed
to within 1/16" of the riser and stringer to allow for expansion.
Adhesives shall be applied per Burke’s instructions. The stair
tread and nosing portion of the stair tread shall be bonded
directly to the step surface. Do not overlap the nosing over
resilient riser material. Stair treads 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.
4. INSTALLATION MANUAL
Refer to Burke Rubber Stair Tread installation instructions for
complete installation details.