SikaTile®-350 Flex Set Superior Grade Polymer Modified Thin Set Mortar
Usage
SikaTile®-350 Flex Set provides flexible, high strength for flat, even installations and is suitable for bonding the following types of tile and stone:
- Brick and thin brick
- Cement-based precast terrazzo
- Impervious porcelain and glass tile
- Natural stone tile
- Vitreous, semi-vitreous or non-vitreous tile:
- Ceramic, mosaic, quarry, cement body tile
SikaTile®-350 Flex Set can be installed in most interior and exterior residential and commercial installations on floors and walls on the following recommended substrates:
- Brick Masonry
- Cement Backer Board1
- Cement Mortar Beds
- Cement Plaster
- Cement Terrazzo
- Ceramic Tile and Stone
- Concrete
- Concrete Masonry
- Exterior Grade Plywood2
- Gypsum Wallboard2
- SikaLevel®SikaTile® Membranes
- Approved SikaLastic® Under Tile Waterproofing
Advantages
- Ideal for Exterior Vertical Installations
- For Glass, Porcelain, Ceramic Tile and Natural Stone
- Adheres to Non-Absorptive Surface
- For interior and exterior floors and walls
- Dustless formula – provides approximately 80% less dust than ordinary mortars
- Cleaner working conditions by minimizing dust
- Creamier and easier to spread
- Uses less water for consistent hydration and quicker drying
- Longer working time
- No-Slake – No wait. Just mix, trowel, and install
- Mold and mildew resistant
1 Consult cement backer board manufacturer for installation recommendations and to verify acceptability for exterior use.
Sika® is committed to environmental responsibility in both products produced and in manufacturing practices. Use of this product can contribute towards LEED® v4.1 certification:
- Up to 2 points towards MR Credit 5, Regional Materials
- Up to 1 point towards IEQ Credit 4.1, Low-Emitting Materials – Adhesives & Sealants
APPROVALS / STANDARDS
American National Standards Institute (ANSI) — ANSI A108.5, A118.15E, A118.4E and A118.11 of the American National Standards for the Installation of Ceramic Tile ASTM International (ASTM)
- ASTM C109 Standard Test Method for Compressive Strength of Hydraulic Cement Mortars (Using 2” or 50mm Cube Specimens)
- Resilient Floor Covering Institute - (RFCI) Recommended Work Practices for Removal of Resilient Floor Coverings
- Tile Council of North America (TCNA) - TCNA Handbook for Ceramic Tile Installation, TCNA EJ171 Movement Joint Guidelines.
- ISO 13007-2 C2EP1
Chemical Base
Portland cement, selected aggregates, water retention additives, re-dispersible polymer
Shelf Life
15 months from date of production when stored in original, sealed package
Storage Conditions
Store in undamaged, original, sealed package, in dry conditions at 73⁰ F (23⁰ C)
Slant Shear Strength
4 Week Shear Bond Strength
| Property | Test Method | Requirement | Typical Results |
| Porcelain Tile | A118.15 Section 7.2.5 | > 400 psi | 400 - 450 |
| Quarry Tile to Plywood | A118.11 Section 4.1.2 | > 150 psi | 150 - 250 |
ISO 13007 Classification
| Classification Code | Classification Requirement | Results |
| C2 (cementitious, improved adhesion) | ≥ 145 psi (1 MPa) after standard aging. Heat aging, water immersion and freeze/thaw cycles | Pass |
| E (extended open time) | ≥ 72.5 psi (0.5 Mpa) after 30 minutes | Pass |
| P1 (normal adhesion to plywood) | ≥ 72.5 psi (0.5 Mpa) | Pass |
Mixing Ratio
5 quarts (4.75 liters) of clean potable water per 50 lb. bag
Pot Life
60 - 90 minutes
Open Time
> 30 minutes - Passes ANSI A118.15 Section 5.3
Cure Time
Product Curing time is affected by ambient and surface temperatures and humidity. Use the following as a guideline. Allow 24-48 hours before grouting and light traffic, and 7 days before heavy or vehicular traffic. As necessary, use plywood or other load distributing protection when moving heavy equipment across tiled assembly.
2 Interior Use Only.