Sauereisen Inc.

- Model No. 256 - Versatile Epoxy Flooring System



Sauereisen ConoSpread - Chemical & Food Grade 256 is a versatile epoxy flooring system catering to standard pour and spread application methods. This product offers excellent application properties and diverse chemical resistance. Typical installations involve the application of a basecoat slurry that is topped with a broadcast for additional skid resistance. Sealing of the broadcast is optional, but recommended for best overall performance and aesthetics.

ConoSpread 256 is packaged in 1-gallon, large, and bulk sizes to facilitate project needs. Refer to estimating table for coverages of the various system options.

ConoSpread is commonly specified as protective flooring for process areas in the food & beverage, chemical processing, pharmaceutical, steel, mining, power, and metal finishing industries. The ConoSpread system should be used with an appropriate Sauereisen primer to enhance bonding. Consult Sauereisen for a primer recommendation depending on the type of substrate and surface conditions.

  • Excellent thermal shock resistance.
  • Resistant to a wide range of acids, alkalies and some solvents.
  • Available colors: 53 gray, 63 tile red, 01 black

  • Temperature of Working Area
  • The monolithic components and substrate should be maintained at 65°F to 85°F for 48 hours prior to beginning work.
  • For optimum conditions, maintain a temperature of 65°-85°F on air, concrete substrate and material components during
  • mixing, application, and cure.
  • At temperatures below 65°F, the application becomes more difficult and curing is prolonged. Above 85°F, the material working time decreases.
  • Application in direct sunlight and rising surface temperatures may result in blistering of materials due to expansion of
  • entrapped air or moisture in the substrate. Concrete that has been in direct sunlight must be shaded 24 hours prior to application and remain shaded until after the initial set. In rising temperatures, it may be necessary to postpone the application or to apply during cooler hours.
  • Surface Preparation
  • Refer to SSPC-SP13/NACE 6 'Surface Preparation of Concrete' for detailed guidelines.
  • Concrete must be dry, firm and structurally sound as specified by the architect/engineer. Concrete shall have a
  • tensile pull off strength of 200 psi or greater as tested by ACI 515.1 Appendix A. Abrasive blast, high-pressure water blast, or acid etch concrete to remove laitance and to obtain uniform surface texture resembling coarse sandpaper. All
  • sand and/or debris must be removed by thoroughly vacuuming the area with an industrial vacuum cleaner.
  • If surface does not have desired texture, repeat surface preparation procedure.
  • New Concrete - Concrete should be floated free of ridges or depressions and all voids filled with Sauereisen Underlayment No. F-120 or Filler Compound No. 209, depending on the severity of the voids. Concrete should be sloped a maximum 1/8 inch per foot for drainage. Too much slope may result in inconsistent coverage or require a stiffer mix. Consult Sauereisen for recommendations. If acid etching is utilized as the method of surface preparation, refer to ASTM D-4260 'Standard Practice for Acid Etching Concrete' for the appropriate procedure. All acid and residue must be removed prior to placing the ConoSpread system.
  • Old Concrete - All structural cracks must be repaired and slopes reestablished with Sauereisen Underlayment No. F-120. Finished substrate should be sloped to a maximum 1/8 inch per foot.
  • If abrasive or high-pressure water blasting is used as the method of surface preparation, all sand and/or debris must
  • be removed by thoroughly vacuuming the area with an industrial vacuum cleaner. If surface does not have desired texture, repeat surface preparation procedure.

Joints are to be provided on 14 foot centerlines and over existing expansion/control joints. Joints should also be placed
around all fixed objects, peripheries of rooms and all points of movement in the base slab. Consult Sauereisen for recommendations.

  • Primers - An appropriate Sauereisen primer should be applied prior to the epoxy flooring installation. ConoWeld No. 501 or PenePrime No. 500 may be used depending on the conditions of the substrate. Review the primer data sheets for mixing, curing, and application instructions.
  • Mixing of ConoSpread - GENERAL - When using ConoSpread, empty contents of Part A Hardener, Part B Resin and Part D Pigment into clean container and mix thoroughly with a drill motor and 'Jiffy' blade for at least 3 minutes. Immediately pour entire contents onto floor and spread with a trowel, roller, or epoxy screed to specified thickness.
  • Mixing of ConoSpread – UNFILLED SYSTEM - When using ConoSpread as an unfilled coating or sealer, mix as above.
  • Slurry mixes - When using No. 256 as a slurry, empty Parts A, B, D, as above into a clean mixing vessel and mix for at least two minutes.

Add Aggregate Part C to obtain the desired consistency. Aggregate loading rates will vary depending on the thickness specified.

Installation of Basecoat Slurry – Pour the material in a narrow band starting at any convenient wall or joint. Spread using an epoxy screed rake or cam rake. After the material has been spread, backroll using a ¼-inch short nap roller and spiked roller. Workers should wear spiked shoes to allow the slurry to self-level.

When building towards a total system thickness of 1/4 inch, distribution of the basecoat slurry may be by assisted with a trowel.

Broadcast Procedure – Immediately after backrolling, additional Aggregate should be broadcast into the slurry to thicken the basecoat and/or provide skid resistance.

For a uniform surface texture, Aggregate should be broadcast to rejection. The recommended Aggregate filler for the No. 256 is a clean, white silica sand.

The Aggregate sizing should meet the parameters of 95% passing through a 30 mesh screen but 100% being retained on a 100 mesh screen.

The Aggregate should be rounded with a purity of 99.8% and a moisture content of less than .1%.

For more information consult Sauereisen for aggregate quality assurance standards.

Sealing Procedure - The final step of a sealer coat is optional, yet recommended. Left unsealed, the greatest degree of skid resistance will remain.

Sealing provides a more easily cleaned surface. Another consideration is that a small degree of wear, due to abrasion, should be expected when an unsealed floor is put into service. Unfilled components A,B, and D are used for purposes of sealing. The mixed combination of Hardener, Resin and Pigment should be spread with a squeegee and backrolled.

Allow the ConoWeld No. 501 to cure a minimum 8 hours or until firm but tacky prior to applying ConoSpread.
PenePrime 500 must be allowed to cure at least three hours prior to application of ConoSpread. The maximum cure time for primers prior to the ConoSpread application is 24 hours.

ConoSpread No. 256
The ConoSpread will take an initial set in 8 hours at 70°F. Do not allow water or chemicals on the material surface for a minimum of 24 hours. For temperatures below 70°F, cure a minimum of 48 hours prior to water or chemical exposure.

ConoSpread No. 256 - Gallon Unit

  • Part A Hardener: (2.281 lbs.) 1-qt. can
  • Part B Resin: (5.922 lbs.) 1-gal. can
  • Part D Pigment: (.3964 oz.) 1-pint can

ConoSpread No. 256 - Large ABD Unit

  • Part A Hardener: 2-gal. pail (1 gal., 109.8 oz. or 15.48 lbs.)
  • Part B Resin: 5-gal. pail (4 gal., 23.3 oz. or 40.185 lbs.)
  • Part D Pigment: 1 quart can (27.53 oz. or 2.685 lbs.)

ConoSpread No. 256 - Bulk ABD Unit

  • Part A Hardener: 3 pails plus 1 can (18 gal., 73.8 oz. or 154.8 lbs.)
  • Part B Resin: 55-gal. drum (41 gal., 105.5 oz. or 401.85 lbs.)
  • Part D Pigment: 3-1/2 gal. pail (2 gal., 19.3 oz. or 26.85 lbs.)

ConoSpread No. 256 Part C Aggregate
Sauereisen packages ConoSpread Aggregate in 50 lb. bags that are ordered separately.
*Containers are filled by weight, not by volume. Container size does not indicate volume contents

  • Absorption (ASTM C-413):<0.2%
  • Application time
    • Working time at 70°F: 45 minutes
    • Initial set at 70°F: 12 Hours
  • Density (ASTM C-580): 145 pcf (2.3 gm/cm3)
  • Bond strength to concrete (ASTM D-4541): Concrete failure
  • Compressive strength: 11,800 psi
  • Density (ASTM C-905): 111.4 pcf (14.89 lbs./gal.)
  • Flexural strength (ASTM C-580): 6,375 psi
  • Maximum service temperature (Dry): 180°F (82°C)
  • Modulus of elasticity (ASTM C-580): 7.5 x 105 psi
  • Shrinkage (ASTM C-531): 0.14%
  • Tensile strength (ASTM C-307): 3,075 psi
  • Thickness: 1/4 inch, filled and broadcast; 6 mils, sealant

Physical properties were determined on specimens prepared under laboratory conditions using applicable ASTM procedures. Actual field conditions may vary and yield different results; therefore, data are subject to reasonable deviation.

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