Specification

Roberts
®
3085 is a high performance commercial multipurpose
adhesive developed for the direct glue installation of most commercial
carpets and felt-back sheet vinyl. It offers great adjustability time and
once dry, a very strong bond to hold pattern carpets in place.
Features:
• Heavy traffic areas • Great adjustability time
• Excellent for pattern carpets • Great rebond
Enviro Friendly:
• Solvent Free • Zero VOCs (calculated)
Roberts 3085 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 3085 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 adhering carpet, mineral
fibrous felt-backed sheet vinyl and
unfinished cork underlayment (rolls).
Carpet Backings – Polypropylene
(ActionBac
®
), woven, hot melt, latex
unitary, urethane foam (Enhancer
®
),
polyurethane laminate (LifeSpan
®
),
sponge-rubber, jute, and latex-foam.
For backings not listed please
contact our Technical Department
at [phone].
For interior installations only. Do not
use this adhesive for pure vinyl or
vinyl-backed products. Roberts 3085
adhesive is not recommended for
finished cork having a wear surface
or a vinyl backing. This adhesive is
not recommended for cork that will be
installed as the final flooring surface.
Roberts 3085 is not recommended
for cork underlayment when used
for wood flooring installations. When
installing wood flooring use Roberts
1408 to adhere cork underlayment
to substrate.
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.
Carpet should not be adhered to vinyl composition tile in high or heavy
traffic areas. 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 of substrates to prevent
accelerated wear or “show through” (telegraphing).
Carpet & Felt-Back Vinyl
Adhesive
Roberts Consolidated Industries, Inc. • Boca Raton, FL 33487 • [phone] • www.robertsconsolidated.com 1
PREFERRED
3085
Multi-
Purpose
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 70 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
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 Sizes:
Surface Preparation
(continued):
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. Refer to ASTM F1482
Standard Practice for Installation and Preparation of Panel Type
Underlayments to Receive Resilient Flooring.
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 40 minutes
Working Time: Up to 70 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 40
minutes of open time before you place your flooring into the adhesive.
Carpet
(polypropylene, woven)
Felt-Back Sheet Vinyl
Felt-Back Sheet Vinyl
1/8 in. x 1/8 in. x 1/8 in.
65–75 sq. ft.
per gallon
160–180 sq. ft.
per gallon
170–190 sq. ft.
per gallon
1/16 in. x 1/16 in. x 3/32 in.
1/16 in. x 1/16 in. x 1/16 in.
The trowel notches referenced are those typically recommended for the type of flooring being installed. They are
normally the minimum size recommended. Surface conditions (roughness and porosity of substrate), type of flooring
and backing will ultimately determine the required trowel notch size and coverage.
Flooring manufacturer’s products differ in characteristics and textures. Always check with the specific flooring
manufacturer’s recommendations for their specific trowel requirements. Less porous substrates typically require
a smaller notched trowel and longer open time than porous substrates. Ensure 100% transfer of adhesive to the
substrate and the flooring backing.
FLOORING TYPE TROWEL SIZE ROBERTS ITEM # COVERAGE
Carpet
(polypropylene, woven)
1/8 in. x 1/8 in. x 1/16 in.
90–110 sq. ft.
per gallon
10-810 / 10-823
10125
49737 / 10137-12
49736 / 10121-12
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ANTIMICROBIAL PROTECTION
®