Technical Specifications

2025 Centre Pointe Blvd, Suite 300, Mendota Heights, MN 55120 | P 651.688.9116 | F 651.688.9164 | www.tccmaterials.com
FEATHER EDGE PRO
Fast-setting, non-sanded, patch & skim coat
© TCC Materials
®
• October 2017 Version 2.0
PRODUCT DESCRIPTION
Rapid Patch Feather Edge Pro is a
trowelable, rapid-setting, Portland cement-
based, polymer-modified, patch and skim
coating compound for use on multiple
substrates. This specially formulated, non-
sanded product results in an ultra-smooth
finish and can be applied from feather
edge to ½ in. (13 mm) and is ideal for use
as an embossing leveler.
WHEN/WHERE TO USE
Ideal for patching and embossing, interior
applications
Can be used under:
• Ceramic tile
• Resilient flooring
• VCT
• Carpet
• Natural stone
• Wood flooring
Can be used over (when properly
prepared):
• Concrete
• Cement backer board (CBU)
• APA rated exterior grade/exposure 1
plywood or OSB underlayment grade
equivalent **
• Ceramic tile**
• Properly prepared cutback adhesive**
• Properly prepared residual carpet
adhesive**
• Fully adhered resilient flooring**
• Cement terrazzo**
** Replace 100% of water with Akona
Concrete Bonding Additive (sold
separately).
ADVANTAGES
• Feather edge to ½ in. (13 mm) in
thickness without cracking
• Can be used as embossing leveler
• Ultra-smooth, thin finish
• Can be applied to concrete with a
relative humidity (RH) up to 90%
• Can accept tile and stone applications
as well as moisture-sensitive floor
coverings in as little as 30 minutes or
when completely dry
• Polymer-modified
• Fast-setting with initial set in 15-20
minutes
• Self-drying
• Portland-cement based
• Superior workability for easy application
• Does not require priming on most
surfaces
• Exceptional bond strength
• Compatible with sealed gypsum based
flooring
AVAILABLE SIZE
Gray 10 lb. (4.5 kg) pail (BOM #129490)
COVERAGE
Note: All coverage rates are estimates and are
dependent upon substrate characteristics.
TECHNICAL DATA
Greater than: > Greater than or equal to: ≥ Less
than: < Less than or equal to: ≤
PREPARATION
Read all directions before starting work.
• Acclimate water and powder to room
temperatures of 50°F-80°F (10°C-27°C)
for a minimum of 24 hours prior to
installation. Proper surface repair
preparation is crucial to achieving a
successful application.
• Surface must be clean, dry, hard and
free from dirt, loose particles, wax,
sealers, curing compounds, grease,
paint, efflorescence, and any foreign
materials that will inhibit adhesion.
• Floors must be structurally sound, level,
free from movement and dimensionally
stable.
• Feather Edge Pro does not require the
substrate to be primed prior to
installation over most surfaces.
PREPARATION OVER CEMENTITIOUS
FLOORS
• For best results, any concrete surface
to be skim coated shall be cured for a
minimum of 28 days, and free of
surface imperfections, such as
efflorescence.
• Loose chunks or chips of concrete
should be cleared and remove any
resulting dust.
• New slabs should be steel troweled with
a fine broom finish. Existing slabs may
need to be roughened to provide a
mechanical bond.
• Maximum bond over a concrete
substrate can be achieved by
mechanically profiling the surface either
by grinding, shot blasting, sand blasting,
or scarifying to achieve an ICRI CSP3
to CSP5 standard. Structurally sound
concrete that is porous, and has not
been troweled smooth and flat may not
require mechanical profiling.
• After cleaning and profiling, test for
MVER (moisture vapor emission rate,
reference ASTM F1869) and concrete
substrate’s relative humidity (RH,
reference ASTM F2170). The
requirements of the floor covering and
floor adhesive manufacturers must be
followed with respect to, but not limited
to, levels of moisture.
PREPARATION OVER WOOD
SUBSTRATES
• Wood floors should be APA rated
exterior exposure 1 plywood or OSB
underlayment grade equivalent,
structurally sound, securely fastened,
with no flexing.
PREPARATION OVER EXISTING
ADHESIVE OR CUTBACK RESIDUE
• Scrape off all ridges and remove any
loose adhesive. Existing adhesive
residue shall be hardened and well
bonded to the substrate. Residue shall
be mechanically reduced to expose the
substrate and only a transparent
residue shall be present.
• Mechanically remove any loose material
or old patching compounds.
• Remove all dust from adhesive residue
and check remaining residue to make
sure it is not water soluble or if will
Feather Edge Pro
Approximate Coverage
per 10 lb. (4.5 kg) bag
⅛ in. (3.2 mm)
thickness
Approx. 15 sq. ft.
(1.45 m
2
)
⅟
16
in. (1.6 mm)
thickness
Approx. 31 sq. ft.
(2.85 m
2
)
Skim coat
thickness
Approx. 90 sq. ft.
(8.35 m
2
)
Typical Values • Feather Edge Pro
Mix Ratio
(Water to Powder)
2 –2½ qt. (1.9-2.3 L)
per 10 lb. (4.5 kg)
(1 part water to 2
parts powder)
Working Time @
70°F (21°C)
Approximately
15-20 minutes
Set Time ASTM C191
Initial Set
Approximately
20 minutes
Final Set
Approximately
30 minutes
Compressive Strength ASTM C 109 (Air
Cured)
1 day >2,100 psi (14.5 MPa)
7 days >3,000 psi (20.7 MPa)
28 days >4,500 psi (31 MPa)