Tile & Stone Installation

Floor Mud (833)

SGM Floor Mud Surface Preparation (833) is a unique factory blend of Portland cement, graded silicas, and additives. This product is developed to produce a suitable dense substrate for ceramic tile and dimension stone. Only the addition of clean, cool water is needed.

Product Details


SGM Floor Mud Surface Preparation (833) is not an adhesive mortar; use on substrate only. For additional strength and adhesion, use Southcrete™ 30 High-Strength Admix in lieu of water. Tile can be set with SGM Floor Mud Surface Preparation (833) while still plastic using neat Portland Cement Bond Coat conforming to ANSI-108.1 guidelines.


  • Saves Time and Labor
  • Water Resistant
  • Quality Controlled Mix
  • Vermin Proof


SGM Floor Mud Surface Preparation (833) may be used only over properly prepared substrates. Floors must be twenty-eight (28) days cured and free of moisture. All floors must be free of any wax, oil, dust, or paint overspray. Hence, any further cleaning shall be done using SGM Safe Clean Crystals (refer to SGM Safe Clean Crystals label directions). Remove all liquid curing agents. All materials and areas to be tiled should remain above 40°F (forty degrees Fahrenheit) 24-hours prior and 72-hours after installation.

  • Countertops and Wood Floors: Place a cleavage membrane, such as fifteen (15) pound roofing felt, or four (4) mil polyethylene film. Reinforce with metal lath. Float to a minimum of ? inch.
  • Shower Floors: A minimum of 1¼” thick Floor Mud Surface Preparation is required. For shower receptors, follow the appropriate Tile Council of North America (TCNA) Handbook 2019 Methods B414, B415, and B416 for installation. Shower floor membrane as required by local authority having jurisdiction. Tile installation to conform to appropriate ANSI method.


Add sufficient cool potable water to dry mix approximately 3/4 – 1 gallon per fifty (50) pounds of Floor Mud Surface Preparation. Mix until mortar becomes trowable. Apply floor mud to subsurface using sufficient pressure to insure a good mechanical bond. Float Floor Mud Surface Preparation to desired thickness. Follow TCNA Handbook Method EJ171-88 for expansion joints.


Minimum cure is reached 12—24 hours. Tiles may be set while floor mud remains plastic. Setting time may vary according to atmospheric conditions.


  • 24 sq. ft per 50 lbs. bag at ¼ inch thickness.
  • 12 sq. ft per 50 lbs. bag at ½ inch thickness.
  • 8 sq. ft per 50 lbs. bag at ¾ inch thickness.
  • 6 sq. ft per 50 lbs. bag at one (1) inch thickness


Clean up hands and tools with warm soapy water before material dries.


WARNING — EYE IRRITANT CONTAINS PORTLAND CEMENT. Product is alkaline on contact with water. Use paddle for mixing to avoid splashing into eyes or contact with skin. During mixing or application avoid contact with eyes. In case of such contact, flood eyes repeatedly with water and CALL A PHYSICIAN. Wash thoroughly after handling and before smoking or eating. Do not take internally. CONTAINS FREE SILICA — DO NOT BREATHE DUST. Prolonged exposure to dust may cause delayed lung disease (Silicosis). WARNING: This product may expose you to chemicals, including silica, which the State of California recognizes as a cause of cancer. For more information, visit the Proposition 65 Warnings Website (www.P65Warnings.ca.gov). Use NIOSH approved masks at all times to handle silica dust. KEEP OUT OF REACH OF CHILDREN.


None required.

SGM Inc. warrants this product will perform in accordance with its intended use for a period of one year from the date of manufacture. Any claim for defective products must be submitted in writing to SGM Inc. and samples of the defect must be provided. SGM Inc. ‘s sole obligation will be to replace any product determined to be defective by SGM Inc. EXCEPT AS PROVIDED HEREIN, SGM INC. MAKES NO OTHER REPRESENTATION OR WARRANTY OF ANY KIND, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR PARTICULAR PURPOSE. IN NO EVENT SHALL SGM INC. BE LIABLE FOR DAMAGES OF ANY KIND OR NATURE, WHETHER ARISING BY CONTRACT, TORT OR OTHERWISE. SGM INC.’S SOLE OBLIGATION WILL BE TO REPLACE ANY PRODUCT DETERMINED BY SGM INC. TO BE DEFECTIVE.