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Flextille 50 Professional-Grade Mortar

50 Professional-Grade Mortar is a professional-grade, high-performance, one-component, polymermodified thin-set mortar. Unique, high polymer modification provides the superior bonding characteristics and improved flexibility for installation of tile and stone over most surfaces.

Product Type: Mortar

Application Area: Masonry

Features: Bondability, Easy To Finish, Excellent Flexibility, High Performance, Water Resistant

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Identification & Functionality

Product Type

Features & Benefits

Labeling Claims
Features
  • Excellent flexibility and bond strength.
  • Excellent workability.
  • Easy to use - just mix with water and apply.
  • Water resistant when cured.
  • Rated as a light performance commercial and residential mortar by ASTM C627-70 on plywood substrates.
  • Rated as suitable for extra heavy service by ASTM C627-70 on concrete substrates.

Applications & Uses

Application Area
Basic Uses

Installation of ceramic and porcelain tile, quarry tile, pavers, and many types of marble, granite and natural stone

Recommended Surfaces
  • Interior or exterior floor and wall installations.
  • Vertical or horizontal surfaces of concrete, masonry, terrazzo, cement backer boards.
  • Existing surfaces of properly prepared tile, stone or cementitious terrazzo.
  • Exterior grade plywood or gypsum board, in interior dry areas only.
  • Existing surfaces of properly prepared non-cushion sheet vinyl flooring, VCT or cutback adhesive residue.
  • Flextile waterproofi ng, crack-isolation and sound reduction membranes.
Limitations
  • Do not use over particleboard, Masonite, chipboard, OSB or similar unstable materials.
  • Do not use over cushioned resilient flooring, rubber, plastic, paint, asphalt, or plywood surfaces in wet areas.
  • Do not use over single layer plywood floors. Use only on surfaces, which aremaintained at a temperature above 10°C (50°F) and below 35°C (95°F) during application and for at least 72 hours after application.
  • To use directly over gypsum-based patching or leveling substrates, mix with Flextile 43 Thin-Set Mortar Additive or Flextile 44 High Solids Thin-Set MortarAdditive, also, apply suitable primer before use.
  • On exterior applications, protect from rain until thoroughly dried and protect from freezing for at least 14 days after installation.
  • When installing light-colored stones and translucent marble, use Flextile 50 White.
  • Installations over nonporous surfaces may require extended setting/curing times.
  • Do not use for moisture-sensitive stone such as green marble, certain limestoneand granite, agglomerate tiles, cultured marble or resin-backed tiles. Instead, use Flexepoxy 100 mortar.
  • For installations subject to severe freeze/thaw conditions use Flextile two component systems.

 

Installation

Preparatory work: Surfaces must be sound, even, dry and free of grease, oil, dirt, paint, curing compounds or sealers, or other foreign matter. Surfaces must be true to a tolerance of 3 mm (1/8”) in 2.4 meters (8 ft.) for walls and 6mm (1/4") in 3 meters (10 ft.) for fl oors. Concrete surfaces should have a wood fl oat or steel trowel with broom fi nish. Roughen smooth concrete surfaces. Plywood fl oors should be designed for maximum defl ection of L/360 of span. This normally requires an overlay of 16 mm (5/8") exterior grade plywood over 25 mm (1") nominal boards or 16 mm (5/8") plywood when on joists 40 cm (16") O.C. Fasten overlay with screw type nails and glue where possible. Leave a 3 mm - 6 mm (1/8”-1/4”) gap between sheets of overlay and next to all vertical surfaces to allow for expansion. Refer to current editions of TTMAC 09 30 00 Tile Installation Manual, or TCNA Handbook for Ceramic Tile Installation for information regarding placement of expansion or control joints, or for further substrate acceptability information.

Application: Mix with approximately 5 liters (1.3 US gallons) of water per 22.7 kg (50 lb) bag. Avoid using high-speed mixers. Allow mixed mortar to slake for at least 10 minutes, then re-mix without adding further water. Spread a thin layer of mixed mortar with fl at side of trowel to wet out the substrate; then re-apply suffi cient material with a suitable notched trowel that will leave enough mortar to give at least 95% coverage to the backs of tile. Back buttering of tile is recommended for porcelain tile, high lugged tile, ungauged slate, stone, etc. and for all exterior applications. Comb that area which can be covered with tile before skinning occurs. Mortar should be troweled with notches running in straight lines so as to achieve maximum coverage. Press or beat in tile to achieve a fi nished thickness of mortar of at least 3mm (1/8") for thin-set applications. Do not adjust tiles after they have been set for more than 25 minutes.

Curing and Grouting

Protect from all traffic and delay grouting until cured at least 24 hours, and preferably 48 hours. On exterior or cold weather applications, or when a larger format or impervious tile is installed over an impervious membrane, extended curing is recommended to ensure that mortar is suffi ciently cured prior to grouting. Do not allow heavy traffi c for at least 5 days following installation, and do not allow heavy construction equipment such as scissor lifts, etc. for a minimum of 14 days following installation. Protection of installation with 13 mm (1/2”) plywood sheets prior to allowing heavy construction equipment is recommended until installation is fully cured. Grout using Flextile Polymer Modifi ed Grout, Flextile 1600UPG Ultra Performance Grout or Flextile FlexEpoxy100 - 100% Solids Epoxy Grout.

Maintenance

No maintenance is required except where damages result from unforeseen circumstances.

Technical Service

Flextile maintains a well-equipped laboratory able to test its products in conjunction with the products with which they are used

Properties

Typical Properties
ValueUnitsTest Method / Conditions
Approx. Coverage (Per 22.7 Kg Bag, 10 mm (3/8") notched trowel)5.5
Approx. Coverage (Per 22.7 Kg Bag, 5 mm (3/16") notched trowel)10.0
Approx. Coverage (Per 22.7 Kg Bag, 6 mm (1/4") notched trowel)7.1
CleanabilityWith water before material dries
Final Cure28.0Days
Initial Cure24-48Hours
Open Time20.0Minutes
Pot Life2.0Hours
VOCs0.0g/l

Technical Details & Test Data

Technical Data

Exceeds ANSI A118.4 and A118.11 specifi cation requirements.

Description ANSI Spec. Typical Result
28 Day Shear Strength MPa MPa
Glazed Wall Tile min. 2.07 2.93 to 4.14
Impervious Ceramic Tile (Porcelain) Mosaics min. 1.38 2.24 to 3.11
Quarry Tile min. 1.03 2.42 to 3.45
Quarry Tile / Plywood min. 1.03 1.38 to 1.79

Safety & Health

Caution

Freshly mixed cement, mortar, concrete or grout may cause skin injury. Avoid extended contact with skin where possible and wash exposed skin areas promptly with water. If any cement or cement mixtures get into the eye, rinse immediately and repeatedly with water and get prompt medical attention. Keep out of reach of children

Packaging & Availability

Packaging Type
Availability

Flextile 50 Professional-Grade Polymer-Modified Mortar is available from Flextile Ltd. and its distributors in 22.7 kg (50 lb) bags.

Storage & Handling

Shelf Life
1 Year