Technical data
Bona R850T
Technical dat
a sheet
Rev
10/11
This data sheet replaces all previous
versions
page
1/2
Adhesives
Bona R85
0T
is a one
-
component, moisture curing, water and solvent free, silane
-
based adhesive
for wood floors. Bona R85
0T
provides outstanding adhesion to a variety of surfaces, and allows for
the natural movement of wood flooring.
Perfect alternative
to face nailing close
-
out rows, board replacements and trim applicat
io
ns
Excellent initial “green grab” means the flooring stays in place
Rapid shear strength development
–
flooring is ready for furniture and foot traffic in one day
Easy to clean
–
will
not harm the finish on pre
-
finished floors; will not stain hands
Easy to apply –
no memory means no need to tape or roll
Exceptional ridge stability provides maximum adhesive transfer
GREENGUARD certified for indoor air quality
Physical Characteristics:
Ingredients
–
Calcium carbonate, silane modified prepolymer, plasticizers, amorphous silica
Base
–
Silane Modified
-
Prepolymer
Color
–
Cream
Density –
12.5
lbs./
gallon
VOC Co
ntent
–
Negligible
Sheer Strength
–
335
psi (a
t final cure; lap sheer test, 1 mm gap)
Elongation
–
25
0%
Odor
–
Non
-
offending
Flash Point
– >
100
º
C (212ºF) (Pensky
-
Martens)
Stability –
12 months from d
ate of manufacture in unopened, original packaging
Application Characteristics:
Open Time
- 4
0
minu
tes
Coverage
–
60 L’ per tube with ¼” bead
Curing
–
Light foot traffic
-
8
-
10 hours
Furniture, fixtures
-
12
-
24 hours
Unfinished floor sanding
-
after 24 hours
Replaces top nailing on close
-
out rows and board replaceme
nts.
Supplemental fastening for wide plank boards when nailing and gluing are needed.
Ideal for project
s
where traditional fastening isn’t practical
–
hard to reach areas, radiant heat
floors…
Commercial and residential. Use with solid or engineered p
refinished and unfinished flooring; on,
above or below grade
1
. May be used on both wood and concrete substrates
2
.
1
Read and follow flooring manufacturer instructions, recommendations and limitations as to the
suitability of a particular flooring produc
t to certain jobsite conditions and installation methods.
2
After proper site conditions, moisture testing results and substrate preparation have been met.
See “Directions for Use” for acceptable jobsite conditions.
BEFORE
USING, READ ALL DIRECTIONS AND MATERIAL SAFETY DATA SHEETS.
FOR TECHNICAL ADVICE:
Call Bona US at 800
-
872
-
5515
ACCLIMATION AND SITE CONDITIONS:
Acclimate adhesive and flooring to room temperature at
the jobsite 72 hours before installation. Building climate control system must be functioning with a
temperature of 65ºF
-
80ºF and maximum relative humidity of 70% for 72 hours before flooring is
installed, during installation, and for 72 hours after installation.
MOISTURE TESTING:
For concrete slabs, conduct
moisture testing per ASTM test methods
F1869
Test for Measuring Moisture Vapor Emission Rate (MVER) of Concrete Subfloor Using
Anhydrous Calcium Chloride
and/or F2170
Test Method for Determining Relative Humidity in
Concrete Floor Slabs Using In Situ Prob
es
. Contact ASTM International to obtain copies of the test
methods before proceeding.
MVER using ASTM F1869 (Calcium chloride test) must not
exceed 3 lbs/24 hours/1000 square feet. Relative Humidity using ASTM F2170 (RH Probe
Directions
Technical data
Recommended Use