Specification

During Installation:
Before Installation:
Premium Vinyl
Composition Tile
Adhesive
Roberts Consolidated Industries, Inc. • Boca Raton, FL 33487 • [phone] • www.qep.com
ROBERTS
®
2057 Premium
VCT (Vinyl Composition Tile)
Adhesive is an environmen-
tally friendly, water-based,
low odor adhesive, specially
engineered to adhere vinyl
composition and vinyl
asphalt tile (VAT) to struc-
turally sound plywood of
underlayment quality, and
on-, above- and below-grade concrete subfloors that
are free of moisture, hydrostatic-pressure, alkali,
paint, foreign matter and existing adhesives.
Roberts 2057 may also be used when installing
VCT/VAT over existing VCT/VAT subfloors that are
free from all waxes, sealers and finishes. ROBERTS
2057 SHOULD
ONLY BE USED INDOORS AND IS NOT RECOM-
MENDED FOR USE WHEN INSTALLING
TILE OVER CONCRETE EMITTING MOISTURE
OF 3 LBS. OR MORE, OR ALKALINE FLOORING
THAT MEASURES pH9 OR ABOVE.
TYPICAL PROPERTIES:
Appearance: Beige Viscous Liquid
Base: Synthetic Latex
Non-volatiles: 54%
Consistency: Trowelable
Shelf-Life: One year minimum at 70°F
Flash Point: Non-flammable
Nominal Open Time: 45 minutes. Varies significantly
with humidity, air circulation,
temperature substrate property.
Coating VOC: 0 VOC Calculated
Ventilation: Implement effective ventilation before,
during and after installation by opening windows
and doors for an adequate supply of fresh air.
Consider using window fans and/or air movers
to bring in fresh air and shorten curing time
of the adhesive.
Before Installation:
Temperature:
• Roberts 2057 adhesive is freeze-thaw stable at
10°F (-12.2°C) or above and may be permanently
damaged if stored below 10°F (-12.2°C).
• The Roberts 2057 adhesive and subfloor must be
at least 65°F (18.3°C) or higher if recommended
by the flooring manufacturer.
Floor Condition:
• The subfloor must be clean, dry and free of hydro-
static pressure, alkali, oil, moisture, dust, paint,
grease, wax and adhesive residue, especially cut-
back adhesive.
• All substrate cracks, joints and uneven areas
should be filled with a Roberts 1440 floor patch.
• Follow the flooring manufacturer’s instructions
when installing tile on underlayment and for
ongoing maintenance.
Coverage:
Floorcovering Type Notch Size Approx. Coverage
Smooth/Flat/ 1/16 x 1/16 x 3/32 180-200 sq ft/gal
Porous/Non-porous U (E1)
The above recommended trowel notches are merely
suggestions and/or a starting point. Surface condi-
tions and roughness of material backing will ulti-
mately determine the coverage needed. It is
the installer's responsibility to ensure 100%
transfer of adhesive to the material backing. Full
coverage of the floor surface is also necessary.
During Installation:
Apply Adhesive:
• Apply Roberts 2057 adhesive evenly to the sub-
strate according to industry standards or as rec-
ommended by the flooring manufacturer
using a Roberts (E1) trowel.
Install Flooring:
• Set the tile into the adhesive when it has com-
pletely dried and become tacky to the touch, but
no longer has the ability to transfer to the
tile backing. DO NOT INSTALL TILE UNTIL ALL
MOISTURE IS COMPLETELY EVAPORATED.
• Gently lay tile in place and reposition if necessary.
Tile can be laid into the adhesive for up to 6-12
hours after application as long as adhesive
remains free from any contaminates.
2057
• Solvent free • Environmentally safe • Zero VOC calculated • Dries clear
(Roberts Switchblade™ Trowel 10-368.)