SikaTile 450 LHT Secure Set Modified Mortar 50 lb Bag Pallet - Gray
SikaTile-450 LHT Secure Set is a premium grade, single-component, non-sag, non-slip polymer-modified mortar for interior and exterior setting of large and heavy tile and natural stone.
Features
- It may be applied from at 3/32" to 3/4" (2.4 mm to 19 mm) thickness
- Innovative Dustless Technology producing approximately 80% less dust than ordinary thin sets
- Designed to promote cleaner working conditions and reduce mess
- It uses less water and is creamier and easy to spread
- Non-sag/non-slip for vertical applications
- Non-slumping/Non-shrinking formula eliminates tile lippage
- Flowable properties reduce the need for back-buttering
- Mold and mildew resistant
- Longer working time
- For most residential and commercial floor and wall applications
Suitable Substrates
- Ceramic Tile and Stone
- Cement Backer Board
- Cement Mortar Beds (cured)
- Cement Plaster
- Cement Terrazzo
- Concrete
- Exterior Grade Plywood (interior use only)
- Concrete Masonry
- Lightweight Gypsum Concrete (interior use only)
- SikaLevel Products
ENVIRONMENTAL INFORMATION
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, A118.4E 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 50 mm 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 |
| Glazed Wall Tile | A118.4 Section 5.1.5 | > 300 psi | 450 - 550 |
| Porcelain Tile | A118.4 Section 5.2.4 | > 200 psi | 500 - 575 |
| Quarry Tile to Plywood | A118.11 Section 4.1.2 | > 150 psi | 175 - 225 |
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
| Walls | Floors |
| 4 quarts (3.7 liters) of clean potable water per 50 lb. bag | 5 quarts (4.75 liters) of clean potable water per 50 lb. bag |
Substrate Temperature
40–95 °F (4–35 °C)
Pot Life
60-90 Minutes
Open Time
> 30 minutes (Passes A118.4 E - Section 5.3)
Cure Time
Allow 24 - 48 hours before grouting and light traffic, and 7 days before heavy or vehicular traffic
MIXING
WALLS: For non-sag and slip resistance: In a clean container, add approximately 4 quarts (3.7 liters) of clean potable water, then add the contents of the 50 lb. (22.68 kg) SikaTile®-450 LHT Secure Set Mortar. Mix thoroughly by hand or with a slow speed mixer to a smooth, thick, trowelable consistency.
FLOORS: For use on floors or as a thin set: In a clean container, add approximately of clean potable water, then add the contents of the 50 lb. (22.68 kg) SikaTile®-450 LHT Secure Set Mortar. Mix thoroughly by hand or with a slow speed mixer to a smooth, thick, trowelable consistency. Mortar consistency shall be such that when applied with the recommended notched trowel to the substrate, the ridges formed in the mortar do not flow or slump. During use, stir mortar mix occasionally. Do not add additional water. Do not add latex liquid additives to SikaTile®-450 LHT Secure Set.
APPLICATION
Read all installation instructions before installation. Choose a notched trowel with sufficient depth to achieve more than 80% mortar coverage and transfer to substrate and back of tile to both the tile and substrate for all interior applications, and more than 95% for exterior, commercial floor and wet applications, back-butter the tile to meet these requirements. With pressure, apply a coat of mortar by using the flat side of the trowel to key the mortar into the substrate. With the notched side of the trowel, apply additional mortar by combing it in a single direction parallel to the shortest dimension of the tile. Spread only as much mortar as can be tiled before the product skins over. Open time can vary with jobsite conditions. Set tiles firmly into the wet mortar and push the tiles back and forth in a direction perpendicular to trowel lines to collapse the mortar ridges and to help achieve maximum coverage.
CLEANING OF TOOLS
Clean tools and tile with water before the material dries.