Installation Instructions

RUBBER FLOORING
Installation and Maintenance
Instructions
VPI Corporation
3123 S. 9
th
Street
P.O. Box 451
Sheboygan, WI 53082-0451, U.S.A.
920-458-4664 ● Fax [phone]
www.vpicorp.com
Install & Maint. Treads, Risers & Nosings 15: 03-11-15
WOODEN STEPS
Wooden steps must be completely and satisfactorily secured with screws or nails. They must be free of
polish, wax and other extraneous materials. Repair or replace any worn steps. Fill any cracks and gaps
using a Portland based cementitious underlayment.
TERRAZZO, CERAMIC
These types of surfaces create potential installation problems due to the glazed or polished surface.
These may also have a sealer or wax applied to them. Remove all glaze or polished finish, any waxes,
sealers by sanding or other acceptable means. The surface must be free of dirt, debris or any extraneous
material that will prevent proper adhesion of the tile to the surface. All cracks, depressions, and other
imperfections must be repaired with a high quality, cementitious underlayment.
Gypsum-based underlayment products should not be used. Any uncorrected sub floor irregularities may
telegraph through the VPI Stair Tread and be visible on the surface of the finished installation.
Make sure the underlayment is thoroughly dry before proceeding with the installation.
METAL
These surfaces must be smooth, dry, clean and free from dust, paint, asphalt, old adhesives, grease, oil,
rust and any other extraneous materials. Level all surface irregularities with a Portland cementitious type
of underlayment. Metal surfaces should be lightly sanded or sand blasted for better adhesion.
ADHESIVES
Caution: As with all installations the proper use of adhesive is important for a successful installation.
As a general rule, on the concrete or plywood steps where moisture is a problem use VPI No. 100 - 2-part
Epoxy Adhesive. At the nose, use VPI NC-2 Nose Caulk on all applications. On non-porous surfaces
such as metal treads use VPI NC-2 Nose Caulk.
Harsh Environment Treads:
Must Use VPI 100 2 part Epoxy adhesive.
VPI 100 is a 2-part Epoxy use for on or below grade applications or where traffic may bring in large
amounts of water.
VPI NC-2 Nose Caulk is a solvent-free 2-part epoxy caulking compound that prevents cracking and
flexing of rubber treads and nosing forming a bond at the tread nose joint.
INSTALLATION
VPI Rubber Stair Treads, Risers and Nosing are available in convenient lengths and sizes. Cutting and
dry fitting of these products will be required to obtain proper fit for each product. First, scribe and fit the
treads to each step. Second, scribe and fit each riser material making sure they fit tight to the upper step
nosing. Wide stair cases may require seaming multiple tread pieces together which will require additional
planning and dry fitting. All tread and riser and one-piece tread-riser combination must be trimmed to fit
and dry laid on each step prior to any adhesive application. When installing the one-piece tread and riser
combination, it is recommended to use a cove stick or VPI NC-2 Nose Caulk where the stair tread and
riser intersect. When using the Nose Caulk, press the tread riser junction into the caulk so no voids are
present.