Wolf Gordon Rampart Stronghold Wall Liner Installation Guide
- October 28, 2023
- Wolf Gordon
Table of Contents
Rampart Stronghold Wall Liner
Installation Guide
Rampart Stronghold Wall Liner
RAMPART® StrongholdTM Wall Liner
Installation Guidelines
For RSL 602 (Scrim backing) and RSL 609 (Jute backing)
PRODUCT DESCRIPTION
RAMPART Stronghold is a wall liner used to cover ceramic tiles,
concrete/cinder blocks, laminates, plywood paneling, and other wall surfaces
with indentations, prior to installing RAMPART wall protection or the final
intended finish. It can also be used on MDF board; rigid panels such as FRP,
Acrovyn®, and Inpro®; and drywall. Its purpose is to provide a smooth
substrate for applying RAMPART wall protection. RAMPART Stronghold hides
cracks, joints, pores, patches, and other surface irregularities, and can be
used for new construction, repair, or remodeling applications.
RAMPART Stronghold is comprised of natural jute or polyester fabric that is
totally encapsulated with patented uncrystallized gypsum cement. Once a
waterbased adhesive is applied to the wall liner for bonding to a wall, the
water hardens the gypsum in place, forming a hard plaster veneer. No priming
of the existing substrate is necessary prior to applying the wall liner. The
installation is dustless, non-toxic, and virtually odorless, and will cause
minimal disruption to a facility. Mounting RAMPART wall protection to this
strong foundation creates a perfect scenario for protecting walls from impact
and abrasion.
BEFORE YOU BEGIN INSTALLATION
Examine your shipment to ensure that the material is satisfactory, and the
quantity is as ordered. In the event that any discrepancies are found, contact
Wolf-Gordon customer service at 800-347-0550 before proceeding.
RAMPART Stronghold should be transported and stored at a temperature between
50º90ºF. It is recommended that the wall surface to which the wall liner is
applied be a minimum of 50ºF for at least 12 hours prior to, and 24 hours
after, installation. Verify that the wall moisture content does not exceed 4%
using a suitable moisture meter, and that active moisture infiltration,
condensation, and/or accumulation–particularly in warm, humid climates–is not
present. If walls show mold, mildew or visible moisture damage, or if moisture
content exceeds recommendations, do not proceed with installation until the
condition has been fully corrected under the direction of a qualified
professional. Wolf-Gordon will not be responsible for any performance or
quality issues if moisture problems are not addressed before or following
installation.
HANGING GUIDELINES
RAMPART Stronghold should be overlapped and double-cut when installing. When
cutting the material, allow for a 2″ overlap at the floor and at the ceiling
or top of the wall to be covered with RAMPART wall protection. When applying
Stronghold to an irregular surface, roll a uniform coat of Roman PRO-555
Extreme Tack Adhesive on the back of the wall liner using a 3/8″ nap roller.
For RSL 609, the back has a rough surface; for RSL 602, the adhesive can be
applied to either side. A commercial pasting machine can also be used. The
amount of adhesive to apply is equivalent to one coat of paint. Fold each
sheet over carefully and allow 510 minutes booking time for the adhesive to
tack.
Applying Stronghold over smooth, non-porous surfaces
For smooth surfaces such as glass, glazed block, metal, marble, and
travertine, prime the surface with Roman PRO-935 (R-35®) Clear Adhesion
Promoting Wallpaper Primer. Ensure that the surface has been cleaned and is
free of grease, dirt, and any sealants. If installing over a metal surface, a
rust-inhibiting primer should be used prior to applying R-35. Allow the
surface to dry for a minimum of 4 hours; preferably overnight. After the
appropriate drying time, Stronghold can be installed following the standard
Hanging Guidelines (above) and Installation procedure.
INSTALLATION
After booking, and within 10 minutes of paste application, unfold the liner
from the top and take it to the wall. Position the first panel of Stronghold,
overlapping the ceiling or top of the wall to be covered, and drop down the
remainder of the panel, overlapping the floor or baseboard. Using a short-
bristle brush or plastic smoother (do not use sharp-edged tools), press the
panel from the middle to the outside edges in a diagonal motion (corner to
corner). This will remove any entrapped air and span the grout joints
underneath so the liner is not pushed into the joints. Trim at the ceiling/top
of wall and the baseboard with a snap-off blade utility knife and
straightedge, or a wide sheetrock taping knife. Trim by cutting above the
straightedge for a ceiling edge, and below the straightedge for the floor, so
the panel is not cut short. When the adhesive dries, the liner will tighten up
against the wall and the uncrystallized gypsum cement will harden in place,
creating a hard plaster veneer.
When applying the second panel, overlap the first panel and smooth the wall
liner out firmly, as done with the first panel. Flatten the seams by exerting
light pressure with a seam roller. Before applying the next panel, trim the
top and bottom of the panel as with the first panel, and proceed in the same
manner around the room. It is recommended to butt seam at both inside and
outside corners to achieve the best results. However, if the corners are
wrapped, there needs to be at least 6″ on the return. Use the edge of the
smoother to push the panel tightly into an inside corner, or crease the panel
around an outside corner.
Once installed, allow RAMPART Stronghold to dry for 1224 hours. Upon
inspection after 1224 hours, or if the wall liner was applied over a highly
irregular surface, a light coat of Durabond® may be required in recessed areas
to ensure the material is flush before installing RAMPART wall protection or
vinyl wallcovering. Very lightly sanding the seams of the wall liner is
recommended. Should a highly smooth surface be desired, the wall liner can be
skim coated to achieve the finish level required.
After installation, the walls and wall liner should be monitored for potential
moisture or vapor infiltration, which must be promptly eliminated.