Multi-Purpose Polymer Modified Thin Set Mortar

Product Description and Uses

ATRIA Professional is a multi-purpose polymer-modified thin set mortar for the installation of tiles and stones in floor and walls. Polymers added to the mortar provide superior bond strength and adhesion. Also improves performance in a variety of environments and work areas. Offers economical solutions for residential and commercial jobs on both interiors and exteriors. Ideal for ceramic tiles, quarry tiles, glazed tiles, porcelain, mosaics, marble,
granite and dimension stones. Meets and Exceeds ANSI A118.4 without the need for additives.

  • Ceramic Tile
  • Porcelain
  • Quarry Tile
  • Mosaics
  • Glazed Tile
  • Marble
  • Granite
  • Dimension Stones

Appropiate Surfaces

ATRIA Professional can be used over surfaces properly prepared of cured concrete, cement mortar beds, bricks, dry gypsum boards (Interior), leveling coats and exterior grade plywood (For interior and residential or light commercial only). Surfaces must be dry and free of any dirt or material that may difficult the adherence of the mortar.

  • Concrete (28 days cured)
  • Cement mortar beds
  • Bricks
  • Gypsum boards (Interior)
  • Leveling coats
  • Exterior grade plywood (For interiors and residential or light commercial only)

How to Apply

For each 50 lbs. (23kg) bag add 1.6 gallons (6 liters) of fresh water at room temperature and mix. A plastic and homogeneous dough should be obtained. Let it rest for 10 minutes and mix again before use. The mix should have sufficient consistency to be applied with a spatula. Extend ATRIA Professional manually over the surface with the smooth side of the spatula first and then use the toothed side to give the ATRIA Professional a thickness of 3/16” inches or 5 millimeters.


Atria Professional adhesive should not be applied over asphalt coatings, surfaces covered with vynil, wood, asbestos-cement plates, painted surfaces, metal, glass or plastic. It should be used in temperatures above 41 degrees Fahrenheit or 5 degrees Celcius. The adhesive must be protected from freezing for the first 72 hours. Do not use for applications where the material will be subject to water immersion. Additional preparation instructions may be found in the technical and safety data sheet.


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.

Technical Data

ANSI Specification

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.

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


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.