Installation Guide

Chapter IV — Installation Systems864.
• Do not wash tile for at least 4 days after installation. This will allow the tile
to become well seated in the adhesive and prevent excess moisture and
cleaning agents from interfering with the adhesive bond.
• Products installed using the Tile-On System may have less resistance to
indentation. We strongly recommend the use of Armstrong Floor Protectors.
Fitting:
See Chapter VI, Layout and Fitting, for room layout.
Before installing the material, plan the layout so tile joints fall at least 6"
(15.2 cm) away from subfloor/underlayment joints. Do not install over
expansion joints.
When installing over an existing resilient floor, plan the layout so the new
joints are a minimum of 6" (15.2 cm) away from the original seams. When
installing over tile floors, joints should fall in the center of the tile.
When installing 12" x 12" (30.5 cm x 30.5 cm) tiles, avoid having border pieces
less than 6" (15.2 cm) wide.
Abutting Different Gauges of Resilient Flooring: When installing thinner
gauge material next to thicker gauge materials, install thicker material first
and then butt a 12" (30.5 cm) wide piece of S-153 Scribing Felt against the
thicker material. Adhere the Scribing Felt to the subfloor with S-235 Adhesive.
Use the fine notching of the S-891 Trowel over nonporous substrates such as
existing resilient flooring, and use the regular notching of the S-891 Trowel
over porous subfloors such as wood and concrete. Use S-184 Fast-Setting
Cement-Based Patch and Skim Coat or S-194 Patch, Underlayment and
Embossing Leveler to feather the edge of the S-153 Scribing Felt to the level of
the substrate. Allow the patch to dry completely before installing the flooring.
Scribing Felt is not recommended to be used under the entire installation.
Adhesive Open Times and Trowel Notchings
Adhesive Open Time Working Time
S-515 Approximately 30 minutes or more 24 hours
S-525 Approximately 20 minutes or more 24 hours
S-700 Approximately 30 minutes or more 18 hours
S-750 Approximately 30 minutes or more 6 hours
S-240 Minimum 20 minutes 1 hours
NOTE: All adhesives except S-240 Epoxy Adhesive should be dry-to-touch
before installing tile. The amount of open time will vary according to
job conditions, temperature, humidity, air flow and type of substrate. All
adhesives are applied with fine notching [1/32" (0.8 mm) deep, 1/16" (1.6 mm)
wide, 5/64" (2 mm) apart].
Procedure:
See Chapter V, Adhesives, Seam Treatments and Grout.
When using tile from two or more cartons, check to be sure all pattern and lot
numbers are the same to ensure proper color match. On larger installations,