Armstrong Flooring Coved & Sculptured Wall Base Installation System

For Use With

Adhesive Summary

Product GaugeHeightAdhesive / Trowel / Open Time
Coved Rubber .125″ (3.2 mm)4″S-725 1/16” deep, 1/16” wide, 3/32” apart, U-notch,
Set in Wet
Sculpted Rubber .25″  (6.35mm)4.5″S-725 1/16” deep, 1/16” wide, 3/32” apart, U-notch,
Set in Wet

Keys To A Successful Installation

  • Do not install Wall Base on below-grade outside walls if moisture or alkali is present.
  • Do not install Wall Base over vinyl wall coverings and nonporous paints.

Note: Wall base should not be installed on below-grade outside walls if moisture or alkali is present. Do not install over nonporous surfaces such as vinyl wall coverings and nonporous paints. If in doubt of porosity, abrade the paint or run a bond test. Wall coverings and nonporous paints should not extend more than 1/2″ (12.7 mm) below the top of the base. Exterior use is not recommended.

Recommended Substrates

Will bond to all substrates listed below but refer to flooring installation system for specific installation recommendations:

  • Structurally sound, dry and smooth wall surfaces
  • Wood, plywood
  • Plaster
  • Dry concrete and concrete block
  • Brick
  • Gypsum drywall (Sheetrock)
  • Plastic laminate
  • Fiberglass paneling which has been lightly sanded
  • Metal and glazed surfaces that have been abraded
  • Cured and well-bonded paint on walls (paint must be cured for 30 days)

DO NOT USE OVER:

  • Vinyl wall coverings
  • Alcohol-resin adhesive residue

Job Conditions

  • Resilient flooring should only be installed in temperature-controlled environments. It is necessary to maintain a constant temperature before, during and after the installation. Therefore, the permanent or temporary HVAC system must be in operation before the installation of resilient flooring. Portable heaters are not recommended as they may not heat the room and subfloor sufficiently. Kerosene heaters should never be used.
  • Surfaces must be dry, clean, smooth, structurally sound and free from moisture, alkali, dust, dirt, wax, oils, grease, loose paint or plaster, wall coverings or any other foreign matter.
  • In renovation or remodel work, remove any existing adhesive residue* so that no ridges or puddles are evident and what remains is a thin, smooth film. Rough or uneven wall surfaces may telegraph through the Wall Base.
  • Allow all materials and adhesives to condition to the room temperature for a minimum of 48 hours before starting the installation.
  • The area should be maintained at a minimum of 65°F (18°C) and a maximum of 100°F (38°C) for 48 hours before, during and for 48 hours after completion.
  • During the service life of the floor and wall base, the temperature should never rise above 100°F (38°C) nor fall below 55°F (13°C). The performance of the flooring material and adhesives can be adversely affected outside this temperature range.

Fitting

Wall Base can be mitered or formed and wrapped around outside corners. Shave a strip approximately 1/4″ (6.4 mm) wide and one quarter of the thickness from the back of the Wall Base where the corner will be positioned. This will reduce the thickness to make bending around the corner easier and neater. Do not cut behind the coved toe.

Wall Base can be mitered, scribed or wrapped with a V-shaped notch in the toe at inside corners.

Fitting should be completed for each piece before applying adhesive.

Avoid small pieces at inside and outside corners. Pieces should be no less than 4″ (10.2 cm) in length on both sides of the corners.

PROCEDURE – Wall Base

  1. For straight wall sections, apply the S-725 Adhesive to the back of the Wall Base or directly to the substrate using a wall base notched spreader. Stay 1/8″ (3.2 mm) away from the top of the Wall Base to prevent adhesive oozing.
  2. Apply a solvent-based contact adhesive to outside corners using a 2″ (5.1 cm) brush or a very fine notched trowel. Apply a minimum of 4″ (10.2 cm) from the outside corner, on both sides of the corner and to the back of the Wall Base. When using contact adhesive, always follow the cautions and warnings on the can.
  3. If using a cartridge, apply two 1/8″ (3.2 mm) beads to the back of 2-1/2″ (6.4 cm) base, three beads to 4″ (10.2 cm) base and five beads to 6″ (15.2 cm) base and 7″ (17.8 cm)
  4. Heating the Wall Base from the back will help it conform at outside corners.
  5. After applying S-725 Adhesive, place Wall Base into position on the wall.
  6. Butt joints neatly and roll with a hand roller toward the previously installed section for a tight fit.
  7. Follow the above steps until the installation is completed.

PROCEDURE – Risers

  1. For straight wall sections, apply the S-725 Adhesive to the back of the Riser or directly to the substrate using a Wall Base notch spreader. Stay 1/8″ (3.2 mm) away from the top of the Riser to prevent adhesive oozing.
  2. After applying S-725 Adhesive, place Riser into position.
  3. Butt joints neatly and roll with a hand roller toward the previously installed section for a tight fit.
  4. Follow above steps until the installation is completed.

PROCEDURE – Transition Strips

  1. Subfloor must be smooth, sound, dry, clean and free of dirt, wax, polish, paint and all other foreign matter which may interfere in a good bond, including curing agents and sealers.
  2. Carefully follow warnings on container of the solvent-based contact adhesive. Follow adhesive manufacturer’s recommendations for the installation of transition strips.
  3. Roll transition strip with a hand roller.
Updated on August 31, 2022