Specification

Roberts
®
3500 is a direct glue down carpet adhesive recommended
for residential to medium commercial traffic. Its extended open
time allows plenty of time to install carpet and is also great for dry,
non-humid regions where a longer open time is necessary.
Features:
• Extended open time • Light to medium traffic
• Good in dry climates
Enviro Friendly:
• Solvent Free • Zero VOCs (calculated)
Roberts 3500 is a solvent free adhesive and meets the strict
requirements of the South Coast Air Quality Management District and
may contribute one LEED point for “Low-Emitting Material–Adhesive
and Sealant” (IEQ Credit 4.1) and “Low-Emitting Materials–Flooring
Systems” (IEQ Credit 4.3). This product may also contribute one to
two LEED points for MR Credit 5 if product is manufactured within 500
miles of the project site. Visit usgbc.org for additional details.
Roberts 3500 is protected by GoldGuard
®
, an antimicrobial protection
system that inhibits the growth of mold, mildew and odor causing
bacteria in both wet and dry adhesive.
Uses: For the interior installation of carpet.
Carpet Backings – Polypropylene
(ActionBac
®
), needle-punch, urethane
foam (Enhancer
®
), polyurethane laminate
(LifeSpan
®
), sponge-rubber, jute, and
latex-foam. For backings not listed
please contact our Technical Department
at [phone].
Do not use this adhesive for pure vinyl or
vinyl-backed products.
Substrates: Concrete, APA rated plywood,
vinyl composition tile (free of wax), primed
gypcrete (refer to ASTM F2419) and terrazzo.
Check with the flooring manufacturer for their
underlayment recommendations.
Vinyl composition tile must be well bonded
and limited to one layer. Do not install
a non-porous backed carpet over vinyl
composition tile.
Surface Preparation: Subfloors must be
structurally sound, dry, smooth, flat, level
and free of excess moisture/alkali and all substances (oil, wax,
grease, paint, oil based sealers, etc.) that might interfere with the
performance of the flooring or its installation. Ensure the appropriate
flatness/smoothness to prevent accelerated wear.
All substrate cracks, holes, high spots and irregularities must be
adequately repaired to ensure a smooth, finished appearance to
prevent show through and accelerated wear. Patching compounds
must be suitable for the use application, polymer-modified and applied
according to the manufacturer’s instructions. Expansion or other
moving joints must not be filled or covered with flooring. Refer to
ASTM F710 Standard Practice for Preparing Concrete Floors.
Wood – Subflooring, such as APA underlayment grade plywood,
hardwood, oriented strand board (lightly sanded), or other materials,
must be flooring grade and installed to the manufacturer’s specifications
with adequate ventilation and moisture protection. Ensure wood
substrates have a minimum 18 in. crawl space with adequate ventilation
and moisture barrier protection. Cracks, chips and joints must be
properly patched or repaired.
to place the flooring will vary with
temperature and humidity. The
higher the temperature and the
lower the humidity the faster the
adhesive will set.
Lift a corner periodically to see if the
adhesive is transferring 100% to the
back of the flooring. If the adhesive
is not transferring to the backing of
the underlayment remove adhesive
and reapply.
After Installation – Restrict foot traffic
and moving of heavy objects for 24 to
48 hours to allow adhesive to cure properly. Premature traffic can
cause installation failure.
Clean Up: Fresh adhesive – warm soapy water. Dried adhesive – use
mineral spirits sparingly with a clean, white cotton cloth. DO NOT POUR
CLEANER DIRECTLY ONTO FLOORING.
Refer to material safety data sheet, www.robertsconsolidated.com
and industry standards prior to installation for additional information.
For installation questions that are not covered in this document please
contact our Technical Services Department at [phone].
Limited Warranty: Buyer assumes all risk of use, handling and storage
of product not in strict accordance with the label, printed literature and
industry standards. This limited warranty excludes all other express
or implied warranties including the warranties of merchantability or
fitness for a particular use or purpose. Any implied warranties arising
by operation of law are limited to one year. Roberts will not be liable
for any incidental or consequential damages. Some states do not allow
these limitations or exclusions, therefore they may not apply. This
warranty gives you specific legal rights and you may also have other
rights which vary from state to state.
Available Size:
WARNING: EXISTING FLOORING AND ADHESIVES MAY CONTAIN ASBESTOS. Unless you have confirmation that
the existing flooring system is not asbestos containing, do not sand, dry sweep, dry scrape, abrade, drill, saw, bead
blast, mechanically chip or pulverize existing flooring or adhesive without taking all appropriate precautions. Refer
to local, state and federal guidelines for treatment and removal of these products. You may also refer to the Resilient
Floor Covering Institute’s “Recommended Work Practices for Removal of Resilient Floor Coverings.”
EXISTING PAINT MAY CONTAIN LEAD. Unless you have confirmation that the existing paint is not lead containing, do not
sand, dry sweep, dry scrape, abrade, drill, saw, bead blast, mechanically chip or pulverize existing paint without taking all
appropriate precautions. Refer to local, state and federal guidelines for treatment and removal of lead containing paint.
You may also refer to www.epa.gov/lead.
Surface Preparation (continued):
Existing vinyl composition tile (VCT) must be limited to one layer and
well bonded. Installation over VCT is recommended for residential or
light commercial traffic only. Remove all wax, floor finishes, dirt and
contaminants that may interfere with the bond. Ensure manufacturer
of flooring recommends installation of their product over VCT
before proceeding.
Refer to CRI Carpet Installation Standard available at
www.carpet-rug.org.
General: Ensure substrate, flooring material and adhesive are fully
acclimated prior to installation at the same temperature and humidity
level expected during normal use (between 65–95°F with a relative
humidity (RH) of no greater than 65%). Refer to flooring manufacturer’s
specific recommendations and industry standards.
Materials and area temperature must be between 65–95°F with a
maximum RH of 65% for 48 hours before and during installation as well
as for 72 hours afterward. Large temperature or humidity increases or
decreases can affect the flooring and performance of the installation.
Ensure adequate ventilation during flooring installation.
Physical Characteristics (70°F, RH 50%):
Open Time: Up to 50 minutes
Working Time: Up to 80 minutes
Shelf Life: One year in unopened container
Product Type: SBR latex
Moisture Vapor Emissions: 5 lbs. or less (ASTM F1869) /
80% or less (ASTM F2170)
pH must not exceed 9.0
Protect from freezing
Application and Installation: Spread adhesive uniformly. Allow up
to 50 minutes of open time before you place your flooring into the
adhesive. Adhesive ridges should be of sufficient height to achieve full
coverage of the substrate and the deepest recesses in the back of the
flooring material.
Within the 80 minute working time, place flooring into the adhesive
while the adhesive is still fresh and transfers readily to the flooring
backing. The amount of open time and time in which you have time
Roberts Consolidated Industries, Inc. • Boca Raton, FL 33487 • [phone] • www.robertsconsolidated.com 2
N1810_6067
4 Gallon 3500-4 075378050049
SIZE PRODUCT # UPC