Specification

TILING 09 30 00 Setting / TDS-191
Property Test
Method
Requirement Typical Results
Pot Life
Open Time A118.4
Section 4.4
> 50 Minutes 55 Minutes
Adjustment
Time
A118.4
Section 4.5
> 30 Minutes 40 - 45 Minutes
4 Week Shear Bond Strength
Mixed with Water
Glazed
Wall Tile
A118.4
Section 5.1.5
> 300 psi 225 - 300 psi
(15.821.1kg/cm²)
Porcelain
Tile
A118.4
Section 5.2.4
> 200 psi 150 - 225 psi
(10.515.8kg/cm²)
Quarry Tile
to Plywood
A118.11
Section 4.1.2
> 150 psi N/A
Mixed with Thin-Set Admix
Glazed
Wall Tile
A118.4
Section 5.1.5
> 300 psi 300 - 400 psi
(21.128.1kg/cm²)
Porcelain
Tile
A118.4
Section 5.2.4
> 200 psi 200 - 300 psi
(14.121.1kg/cm²)
Quarry Tile
to Plywood
A118.11
Section 4.1.2
> 150 psi 150 - 200 psi
(10.514.1kg/cm²)
Environmental Consideration
Custom®BuildingProductsiscommittedtoenvironmental
responsibility in both products produced and in manufacturing
practices.UseofthisproductcancontributetoLEED®certification.
5 Instructions
General Surface Prep
Surfaces must be structurally sound, clean, dry and free from grease,
oil, dirt, curing compounds, sealers, adhesives or any other
contaminant that would prevent a good bond. Glossy or painted
surfaces must be sanded, stripped and cleaned of waxes, dirt or any
contaminants. Concrete must be cured 28 days and accept water
penetration. Concrete must be free of efflorescence and not subject to
hydrostatic pressure. Concrete slabs should have a broomed or
brushed finish to enhance the bond. Plywood flooring including those
under resilient flooring must be structurally sound and meet all ANSI
and deflection requirements. For questions about proper subfloor
installation, call Technical Services. Smooth concrete surfaces, existing
glazed tile, terrazzo, or polished stone should be roughened or
scarified. Sheet vinyl must be well-bonded and stripped of old finish.
Roughen the surface by sanding or scarifying, rinse and allow to dry.
Expansion joints should never be bridged with setting material. Do not
sand flooring materials containing asbestos. Ambient temperature,
surfaces and materials should be maintained at a temperature above
50°F(10°C)orbelow100°F(38°C)for72hours.
Bonding to Cement Surfaces
Concrete or plaster must be fully cured and must accept water
penetration. Test by sprinkling water on various areas of the substrate.
If water penetrates, then a good bond can be achieved; if water
beads, surface contaminants are present, and loss of adhesion may
occur. Contaminants should be mechanically removed before
installation. Concrete must be free of efflorescence and not subject to
hydrostatic pressure. Concrete slabs should have a broomed or
brushed finish to enhance the bond. Smooth concrete slabs must be
mechanically abraded to ensure a good bond.
Bonding to Plywood Surfaces
Plywood floors, including those under resilient flooring, must be
structurally sound and must meet all ANSI A108.01 Part 3.4
requirements. See TCNA F150-13 tile installations, TCNA F141-13 and
F250-13 for stone. For questions about proper subfloor installation
requirements,callCustom®TechnicalServices.
Bonding to Backerboards
Asanalternativetoanadditionallayerofplywood,WonderBoard®
backerboard may be installed over plywood subfloors. Refer to TCNA
F14413tileinstallations,TCNAF25013forstone.CallCustom®
Technical Services when installing natural stone over plywood
subfloor.
Bonding to Existing Surfacing Material
Existing Ceramic Tile, Resilient Flooring or Plastic Laminates: Resilient
flooring or plastic laminates must be well-bonded, as well as clean and
free of all contaminates. Roughen the surface by sanding or scarifying;
rinse and allow to dry. Do not sand flooring that contains asbestos. For
existing well-bonded ceramic tile, mechanically abrade the surface.
Rinse and allow to dry. When sanding, an approved respirator should
be used.
Bonding to Cutback Adhesive
Adhesive layers must be removed, as they reduce mortar bond
strength to cement surfaces. Use extreme caution; adhesives may
contain asbestos fibers. Do not sand or grind adhesive residue, as
harmful dust may result. Never use adhesive removers or solvents, as
they soften the adhesive and may cause it to penetrate into the
concrete. Adhesive residue must be wet scraped to the finished
surface of the concrete, leaving only the transparent staining from the
glue. To determine desirable results, do a test bond area before
starting. Refer to the RFCI Pamphlet, "Recommended Work Practices
for Removal of Resilient Floor Coverings", for further information.
Expansion Joint placement
Expansion joints and cold joints, as described in ANSI A108.01, should
never be bridged with setting material. They must be brought through
the tile work and filled with an appropriate elastomeric sealant, such
asCustom's®100%Silicone.ContactCustom's®TechnicalServices
for the proper treatment of control or saw cut joints. Refer to TCNA
EJ171, F125 and F125A.
CustomBlend®StandardThinSetMortar
Published Date: 11/20/2013