Specification

Surface Prep / TDS-102
Tile Council of North America (TCNA) TCNA Handbook for Ceramic Tile
Installation, TCNA Method EJ171, F125 & F125A
Technical Chart
Property Test Method Requirement Typical Results
Thermal Resistance
(R Value)
ASTM C518 0.4 for 3 mm
0.8 for 5 mm
1.8 for 12 mm
Fungus Resistance A118.10
Section 4.1
No Growth No Growth
Seam Strength A118.10
Section 4.2
> 8 lbs/ inch
width
>8 pli
Breaking Strength A118.10
Section 4.3
> 170 psi >170 psi
Dimensional Stability A118.10
Section 4.4
+/- 0.7% <0.7%
Waterproofness A118.10
Section 4.5
No Water
Penetration
N/A
Shear Bond Strength to Cement Mortar
Four Week Shear
Strength
A118.10
Section 5.5
> 50 psi >50 psi
Shear Strength After
Water Immersion
A118.10
Section 5.4
> 50 psi >50 psi
System Crack Resistance
Standard
Performance
A118.12
Section 5.4
> 1/16" and <
1/8"
Pass
High Performance A118.12
Section 5.4
> 1/8" Pass
Point Load A118.12
Section 5.2
> 1000 lbs >1000 psi
Robinson Test A118.12
Section 5.3
As Specified Light
Commercial
Sound Transmission
Reduction (IIC)
A118.13
Section 5.3
> 10 16 for 3 mm
20 for 5 mm
23 for 12 mm
Environmental Consideration
Custom®BuildingProductsiscommittedtoenvironmental
responsibility in both products produced and in manufacturing
practices.UseofthisproductmaycontributetoLEED®certification.
5 Instructions
General Surface Prep
Exterior and wet areas must have proper sloping to drains. All surfaces
must be structurally sound, clean, dry and free from contaminants that
would prevent a good bond. Newly prepared concrete must be
troweled smooth and textured to a fine broom finish and cured for 28
days. Existing surfaces must be scarified and flattened, and all defects
must be repaired. Cracks exceeding 1/8" (3 mm) should be treated in
accordance with TCNA F125 or TCNA F125A.
Bonding to Gypsum Surfaces
Gypsum substrates must have a PSI greater than 2000 and must first
be primed or sealed per manufacturers instructions. When using thin-
setappliedEasyMat®,allgypsumsubstratesmustbecoatedwith
RedGard®WaterproofingandCrackPreventionMembrane or
Custom9240®WaterproofingandAntiFractureMembrane. Interior
dry areas must be primed with Peel & Stick Primer where peel & stick
EasyMat®isused.
Bonding to Plywood Surfaces
Plywood flooring including those under resilient flooring must be
structurally sound, built to industry standards, and deflection should
not exceed L/360.
Detailed wood subfloor minimum requirements as follows:
16" oc Floor Joist
3 mm EasyMat with 5/8" + 3/8" plywood
5 mm EasyMat with 5/8" plywood
12 mm EasyMat with 5/8" plywood
19.2" oc Floor Joist
3 mm EasyMat with 3/4" + 3/8" plywood
5 mm EasyMat with 3/4" plywood
12 mm EasyMat with 3/4" plywood
24" oc Floor Joist
3 mm EasyMat with 3/4" + 3/8" plywood
5 mm EasyMat with 3/4" + 3/8" plywood
12 mm EasyMat with 3/4" + 3/8" plywood
Bonding to Existing Surfacing Material
Resilient flooring or plastic laminates must be well-bonded, clean and
free of all contaminates. Roughen the surface by sanding or scarifying,
rinse and allow to dry. Do not sand flooring containing asbestos. For
existing well-bonded ceramic tile, mechanically abrade with
carborundum stone. Rinse and allow to dry. When sanding, the use of
an approved respirator is recommended. CUSTOM's MBP Multi-Surface
Bonding Primer may be used in place of mechanically abrading the
surface of existing covering.
Bonding to Cutback Adhesive
Adhesive layers must be removed as they reduce mortar bond strength
to cement surfaces. Use extreme caution as 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. Do a test
bond area first, to determine desirable results. 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 Caulk. Contact Custom's Technical Services
for the proper treatment of control or saw cut joints. Refer to TCNA
EJ171, F125 & F125A.
EasyMat®Tile&StoneUnderlayment
Published Date: 9/9/2014