ExtraBond LFT

Large Format Tile Mortar

Description and Uses

Extrabond LFT is a polymer modified medium bed mortar design for the installation of large format tiles. It is cost efficient and offers good bond strength in various types of projects. Its non-slumping
characteristic is effective to eliminate lippage and it can be applied with a 3/4″ thickness.

Appropriate Surfaces

The work surface must be in excellent condition; Dry, clean and free of any substance that may contain oils or any other product that may weaken the adhesion of the mortar. It is recommended to use the mortar 48 hours after installing a concrete surface.

  • Ceramic
  • Cement Mortar Beds
  • Tile
  • Stone
  • Porcelain


It should not be applied to asphalt coatings, vinyl covered surfaces, wood, fiber cement boards, painted surfaces, metal, lass or plastic. It should be used in temperatures above 41 degrees Fahrenhelt or 5 degrees Celsius. The product must be protected from freezing during the first 72 hours. Further preparation instructions can be found in the technical and safety data sheet.

How to apply

For every 50 pound bag. (23kg) add 1.5 gallons (5.7 liters) of water to room temperature. A homogenous and plastic mass should be obtained. Let stand for 10 minutes and mix again before use, The mixture should have sufficient consistency to be applied with a spatula. If using a mixer, mix at low speeds, 150 pm. Extend the mortar manually over the surface with the smooth side of the spatula, then use the serrated side to give the Atria Extra Bond Adhesive a thickness of 0,19 inches or 5 millimeters. For best results in small areas, spread the mixture and immediately place pressure on the surface and level. Immediately remove excess mortar that may have leaked through the joints. For surfaces with reverse protuberances, it may be necessary to apply the mixture on the back of the cover.

Precautions and Warnings

Precautions for safe handling should be taken as required by OSHA’ Respirator Standard (29 CFR 1910.134) and ANSI’Standard for Respiratory Protection (Z88.2).Proper ventilation is required. A dust mask or filter mask is recommended in poorly ventilated areas with a NIOSH approved respirator. It is a recommended to wear eye protection goggles as well as the protection of gloves of adequate size to protect the skin from splashes. Avoid contact with eyes, skin or clothing. This product containtssilica and cement. Direct and prolonged contact may cause silicosis. According to animal studies, it may be carcinogenic. This mortar contains Portland cement and may have detectable amounts of chemicals that could cause cancer, birth defects, or other reproductive harm.Cement, slurry, or foodstuffs. Remove contaminated clothing and wash hands before handling food or contact with eyes and skin. If eye contact occurs, flush eyes with plenty of water several times and consult a physician if necessary. Do not allow this material to enter drains or sewers. Dispose of the material in accordance with the regulations. This substance is harmful if swallowed. If ingested accidentally rinse mouth, DO NOT CAUSE VOMITING. KEEP OUT OF REACH OF CHILDREN


Each 50 lbs. (23kg) bag will cover from 55 square feet (5.10-meter square) to 70 square feet (6.50-meter square) using a 1/4 x 1/4 x 1/4-inch (6 x 6 x 6 mm) trowel.


The minimum cure is achieved after 24 hours, depending on temperature and humidity. Grouting can be done after 24 hours.


Only water is needed to remove excess of uncured mortar and clean tools.

It can be stores free of humidity in its original package for up to 12 months. Do not let water to contact the product until time of use.

ATRIA reserve the right to change products and specifications without notice. All technical data provided here are based on test results from independent laboratories. We recommend seeking for certification to anyone who is interested in verifying the accuracy of these results.


Atria Industries Corp. Warrants the good performance of this product for the purpose it was created only within 90 days from the date of manufacture. Atria Industries Corp.only responsibility will be to replace the product considered to be defective by Atria Industries Corp. after a written claim is received along with samples of the material. Atria Industries Corp. does not provide any other kind of warranty including any warranty of merchantability or fitness express or implied. The user is the only responsible of determining the proper and suitable use of the product. Under no circumstances Atria Industries Corp. will be responsible for damages of any kind or nature. Atria industries Corp. only responsibility will be to replace the product considered to be defective by Atria Industries Corp.