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
VPI NC-2 Nose Caulk. Used for all VPI Stair Tread applications:
1. Cut the mixing nozzle to an inside diameter of 3/8”. Do Not Remove the internal mixer.
2. Remove the end cap and attach the mixing nozzle with the retaining nut to the cartridge.
3. Purge the mixing nozzle before each use with approximately 1 to 2” of adhesive, dispose of the
purge material.
4. The caulk is ready for use, coverage will be approximately 50 l/f with a ¼” bead.
5. Cartridges with remaining adhesive may be reused again by replacing the mixing nozzle at the
time of your next use.
6. Apply enough caulking compound inside the tread/nosing so when the nosing is pressed into
place and the compound will conform to the step edge.
7. Thoroughly roll the tread nosing with a J-type hand roller concentrating on the nosing area.
8. Ideally, 100% contact between the nosing area and the step edge is required to support the tread
nosing.
9. When installing VPI Rubber One-Piece Tread/Riser combination, caulk can be used to support
the area where the tread and riser intersect.
RUBBER STAIR TREAD AND RISER and TREAD/RISER COMBINATION INSTALLATION:
1. Make sure all conditions are met regarding surface preparation before starting the installation.
2. Dry fit all the treads and riser material to ensure a proper installation as described in these
instructions.
3. Make sure there is no debris on the back of each tread and riser by wiping them with a clean dry
cloth.
PREPARING THE TREAD FOR INSTALLATION:
Select the adhesive type.
VPI No. 100 is a 2-part Epoxy use:
1. On or below grade applications or where traffic may bring in large amounts of water.
2. Mix 2-part adhesives thoroughly before applying to the steps and risers.
3. For all applications, apply caulking compound inside the tread/nosing so when the nosing is
pressed into place the compound will conform to the step edge. Leave ½” along each side of the
nose free of any adhesive.
4. For One-Piece Tread/Riser combination, caulk can also be used to support the area where the
tread and riser intersect or install cove stick for support.
5. Position the nosing against the step edge, push the nosing firmly into place making complete
contact with the edge;
6. Then roll the tread or tread/riser into the wet adhesive to the back of the step and up the riser.
7. When used, install separate riser material within the same adhesive time limits.
8. Cross roll each tread and riser with a hand roller.
9. Check transfer of the adhesive to the back of the tread after rolling.
10. Clean any excess adhesive off the treads and risers with soap and water or mineral spirits if
needed. Dried adhesives are difficult to remove.