Products : Grout : Pre-Mixed Grout : SimpleFix® Pre-Mixed Adhesive & Grout

SimpleFix® Pre-Mixed Adhesive & Grout

Ready-to-use product bonds and grouts ceramic floor and wall tile. Crack, shrink and stain resistant. Great for repairs and small jobs. For information on use in larger installations, please call Custom technical services.

  WHERE TO BUY Not all products are sold at all stores. Please call the distributor to ensure product availability.
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Key Features

  • Ready to use
  • No mixing, No mess
  • Stain resistant
  • Great for repairs
  • For joints 1/16" to 3/8"


Environmental Consideration

Custom® Building Products is committed to environmental responsibility in both products produced and in manufacturing practices. Use of this product can contribute towards LEED® v3 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

Suitable Tile Types

  • Bonds and grouts ceramic tile

Suitable Substrates

  • For interior use only
  • Suitable for wet areas such as tub surrounds and shower walls.
  • Concrete
  • Plaster, gypsum wallboard (dry areas)
  • WonderBoard®, cement backerboards
  • Exterior Grade Plywood

General Surface Prep

USE CHEMICAL-RESISTANT GLOVES, such as nitrile, when handling product.

Surfaces must be structurally sound, clean, dry and free from grease, oil, dirt, curing compounds, sealers, adhesives or any other contaminant that would prevent a good bond. Concrete or plaster must be fully cured for 28 days and accept water penetration. Concrete must be free of efflorescence and not subject to hydrostatic pressure. Plywood flooring must be structurally sound and meet all ANSI and deflection requirements (no flex or movement). Surfaces and materials should be maintained at a temperature above 50° F (10° C) or below 100° F (38° C) for 72 hours.

Health Precautions

Contains Petroleum Distillates. If ingested, do not induce vomiting and call a physician immediately. Use with adequate ventilation. Nonflammable. KEEP OUT OF REACH OF CHILDREN. DO NOT TAKE INTERNALLY.

Limitations to the Product

  • Do not bond tile directly to lightweight concrete, gypsum surfaces, hardwood, Luan plywood, particle board, parquet, cushion or sponge-back vinyl flooring, cutback adhesive, metal, fiberglass, plastic or OSB panels. Contact Technical Services.
  • Do not use apply over vinyl flooring or plastic laminates.
  • Do not use on shower floors or areas exposed to prolonged water exposure or steam.
  • Do not use to install fixtures, stone tile, porcelain, saltillo pavers or glass tile.
  • Do not use to install backerboards to subfloors, over a waterproof membrane or to install heating mats or coils. We recommend using a Custom® fortified mortar.
  • Do not use more than is necessary to bond tile. If floor is uneven use a LevelQuik® or LevelLite® Self-Leveling Underlayment.
  • Not for use in movement joints or changes of plane in the tile installation. In these areas us an appropriate caulk or sealant such as Commercial 100% Silicone Caulk or Polyblend® Ceramic Tile Caulk.

Application of Product

As an Adhesive

Using flat side of trowel, apply skim coat of adhesive. Immediately apply additional adhesive with notched side of trowel held at a 45° angle to the surface, combing in one direction. Press tile firmly into place in a perpendicular motion across ridges moving back and forth. With some tile, back-buttering is advisable. Adjust tile promptly and beat in with a beating block and rubber mallet. Periodically pull up a tile and check the back to ensure complete coverage with the adhesive. Do not apply more adhesive than can be covered with tile in 30 minutes. If adhesive starts to skin over (not sticky), retrowel before setting tile. Maintain temperatures above 50°F (10°C) until adhesive cures.

As a Grout

Tile must be firmly attached and adhesive cured 24 to 48 hours prior to grouting. Lightly dampen absorptive, porous tile with clean, cool water. Holding a rubber grout float at a 45° angle, force grout diagonally into joints ensuring joints are completely filled. Remove excess grout using edge of float held at a 90° angle. Work on an area about 5 to 10 square feet (.46 to .9 M2) at a time. Shaping joints and clean-up must begin immediately using a damp, small pore grout sponge in a circular motion. Use clean water and sponge, changing water frequently. Wait 4 hours before removing haze from tile with a soft, dry cloth. If a haze still exists after 24 hours, remove it with TileLab® Grout & Tile Cleaner or Aqua Mix® Non-Cement Grout Haze Remover.

Drying Time

At least 24 hours.

Curing of Product

Typically 24 hours for temperatures above 50F (10C), allow 3 days for water exposure on shower walls and 7 days before water exposure on shower floors.

Cleaning of equipment

Clean tools and hands with water before material dries.


Keep from freezing.

Product Maintenance

Clean with a neutral cleaner such as Aquamix AquaKleen or Tilelab Grout & Tile Cleaner

Ordering Information


  • 1 quart (.946 L) pail
  • 1 gallon (3.78 L) pail

Warranty Information

Product Warranty

Custom® Building Products warrants to the original consumer purchaser that its product shall be free from defects in material and workmanship under normal and proper usage for a period of one year following the date of original purchase. Custom's® sole liability under this warranty shall be limited to the replacement of the product. Some states, countries or territories do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you. This warranty will not extend to any product which has been modified in any way or which has not been used in accordance with Custom's® printed instructions. Custom® makes no other warranties either expressed or implied. This warranty gives you specific legal rights, and you may have other rights that vary from state to state or from one country/territory to another.  This warranty is not transferrable.

Coverage Chart

As an Adhesive

Trowel Size Min Coverage Max Coverage
3/16" x 5/32" V-Notch (5 x 4 mm) for tile up to 6" x 6" (15 x 15 cm) 40 sq. ft. (3.7 M²) 50 sq. ft. (4.6 M²)
1/4" x 1/4" x 1/4" Square-Notch (6 x 6 x 6 mm) for tile up to 12" x 12" (30 x 30 cm) 25 sq. ft. (2.3 M²) 35 sq. ft. (3.3 M²)
1/4" x 3/8" x 1/4" Square-Notch (6 x 9 x 6 mm) for tile over 12" x 12" (30 x 30 cm) 20 sq. ft. (1.9 M²) 25 sq. ft. (2.3 M²)

As a Grout

Coverage will vary depending on tile size and joint width.


  Joint Width
Tile Size  1/16" (1.6 mm)  1/8" (3 mm) 1/4" (6 mm) 3/8" (9.5 mm)
2" x 2" x 1/4" (50 x 50 x 6) 29 (2.7) 14 (1.3) 8 (.74) 6 (.55)
4 1/4" x 4 1/4" x 1/4" (108 x 108 x 6)  56 (5.2) 34 (3.2) 18 (1.6) 12 (1.1)
8" x 8" x 3/8" (200 x 200 x 9.5) 76 (7)  38 (3.5) 18 (1.6) 12 (1.1)
12" x 12" x 3/8" (300 x 300 x 9.5)  100 (9.3) 57 (5.3) 29 (2.7) 19 (1.8)
16" x 16" x 3/8" (406 x 406 x 9.5) 151 (14) 75 (7) 37 (3.4) 23 (2.1)


  Joint Width
Tile Size  1/16" (1.6 mm)  1/8" (3 mm) 1/4" (6 mm) 3/8" (9.5 mm)
2" x 2" x 1/4" (50 x 50 x 6) 116 (10.7) 58 (5.4) 33 (3.1) 26 (2.4)
4 1/4" x 4 1/4" x 1/4" (108 x 108 x 6)  277 (25.7) 139 (12.9) 73 (6.8) 50 (4.6)
8" x 8" x 3/8" (200 x 200 x 9.5) 304 (28.2)  152 (14.1) 74 (6.9) 50 (4.6)
12" x 12" x 3/8" (300 x 300 x 9.5)  403 (37.4) 228 (21.2) 116 (10.8) 78 (7.2)
16" x 16" x 3/8" (406 x 406 x 9.5) 605 (56.2) 302 (28.1) 149 (13.8) 95 (8.8)

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