FLEXCRETE COMPOUND is a highly specialized blend of aggregates, cements, graded sands and proprietary additives.
The material is to be used and mixed with FLEXCRETE POLYMER as a waterproofing/overlay/micro-topping material.

Primary Applications

  • Concrete wall and block foundations
  • Manholes and Wastewater Holding Tanks
  • Swimming Pools & Spas
  • Reservoirs and Potable Water Tanks
  • Balconies
  • Seawalls
  • Interior and Exterior Waterproofing of All Structures

Features & Benefits

  • Waterproofs and Decorates
  • Tenacious Bonding Capacity
  • Becomes An Integral Part Of The Substrate
  • Durable and Permanent
  • Breathable
  • Extremely Flexible

Surface Preparation

In all cases the surface shall be clean and free from anything that would inhibit the bonding capacity of the Flexcrete Waterproofing System. Surface must be structurally sound and free of any bond breaking materials. All cracks, spalls, voids shall be repaired prior to application.

Material Temperature Control / Pot Life

All materials should be kept out of the sun and heat. This excessive heat will accelerate the hydration or setting process. To extend the pot life of the material fill a garbage can or vessel larger than the five gallon bucket diameter with ice and water. Place the mixing fluid in the container prior to using and keep in container while work progresses. This will extend pot life 20-30 minutes. At 70 degrees F. The pot life is approximately 30 minutes.

Mixing and Application of Flexcrete Compound

Place Flexcrete Polymer in empty five gallon container. Place the appropriate amount of liquid based on application type. Using a dual bladed rotary mixer on a high speed drill start mixing the fluid and slowly add the Flexcrete Compound, mixing continuously until a creamy, smooth, lump free pancake batter consistency is achieved.

Once thoroughly mixed, stop mixing and allow the material to dwell or fatten for a period of five minutes. After five minutes, remix and add additional fluid if necessary to the desired consistency.

Apply to a dampened SSD (Saturated Surface Dry) substrate by roller, brush, trowel or spray. It is preferred to apply the material and work sufficiently into the surface filling all pits holes and voids. Allow to dry overnight.

Apply the second coat in the same manner as described above only perpendicular to the first application.

Allow to cure overnight before further applications and seven days prior to water testing on swimming pools.

Coverage by Method

These are theoretical coverage’s. Field conditions predicate actual consumption rate. A minimum of 1/8” is required to create a waterproof condition.



Available in 50 pound (922.7 kg) black, white or gray sacks. To be used with Flexcrete Polymer in 1 gal. (3.7 liter) or 5 gal. (18.9 liter)

ASTM PRI Test Results

Click below to view / download PDF.

Technical Information


  • Compressive Extended C109 5950 psi
  • Flexural Extended C348 940 psi
  • Water Vapor Transmission E96 passes
  • Adhesive Strength on Steel Plate 994.7 psi
  • Impact Strength 16 pounds
  • Tensile Strength 615 psi
  • Permeability CRD C48-73 Surpasses
  • Pull Off d4541.02 Surpasses
  • Hydrostatic Pressure 1/10” 100 psi
  • Sheer Bond Adhesion 650 psi


  • NSF/ANSI 61-2012 Section 5 Complies

Contact Us With Your Questions About FLEXCRETE

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