Sauereisen Inc.

- Model No. 250 Series - Chemical and Food Grade Corrosion-Resistant Flooring System

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Sauereisen ConoSpread - Chemical and Food Grade No. 250 Series is a group of epoxy coatings that provides a corrosion-resistant flooring system. The No. 250 is a pour and spread material for quick and easy application. Where greater skid-resistance is required, use the No. 251 Broadcast system in conjunction with the No. 250. The trowelable formulation is the Vertical No. 252 which is suitable for cove bases. These products offer excellent application properties and are ideal chemical resistant lining/flooring materials. The ConoSpread system is recommended for food & beverage, chemical processing, pulp & paper, pharmaceutical, wastewater treatment, textile, steel, mining, power, and metal finishing industries. The No. 250 Series meets the requirements of the Meat and Poultry Inspectionprogram of the U.S. Department of Agriculture for use in federally inspected meat and poultry plants.

  • Resistant to a wide range of acids, alkalies and some solvents.
  • Maximum service temperature of 150°F (65°C).
  • 100% solids material, no noxious or toxic odors during application.
  • Conforms to USDA requirements for meat and poultry plants.
  • Available in red or gray color.

Temperature of Working Area
Maintain a temperature of 50°-85°F on air, concrete substrate, Liquid, Hardener, and Powder components during mixing, application, and cure. The monolithic components and substrate should be maintained at 65°F to 85°F for 48 hours prior to beginning work.

At temperatures below 65°F, the application becomes more difficult and curing is retarded. Above 85°F, the material working time decreases.

It is recommended that the material components be stored in a cooler area prior to mixing.

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. When the surface temperatures are rising, it may be necessary to postpone the application or apply during cooler hours.

Surface Preparation
Concrete must be dry, firm and structurally sound as specified by the architect/engineer. Surfaces should be made free of oil, grease, and other contaminants that may inhibit bond. This can be achieved by chemical cleaning.

Abrasive blast, high-pressure water blast, or acid etch concrete to remove laitance and obtain uniform surface texture resembling coarse sandpaper.

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 1/8 inch to 1/4 inch per foot for proper drainage.

If acid etching is utilized as the method of surface preparation, the acid should remain in contact with the concrete until bubbling stops. The concrete should then be flushed with clean water and scrubbed with a stiff bristle broom to remove acid salts and loose deposits. All acid and residue must be removed prior to placing the No. 250 systems.

Old Concrete - All structural cracks must be repaired and slopes reestablished with Sauereisen Underlayment No. F-120. Concrete should be sloped 1/8 inch to ¼ inch per foot for proper drainage.

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.

Mixing
Empty contents of the Liquid into a clean, dry mixing container. Empty contents of Hardener into Liquid and mix thoroughly until blended for at least one minute with a slow-speed paddle mixer. Gradually add Powder component to blended Hardener/Liquid while mixing to a uniform consistency.

Mix only complete units. Material which has begun to set must be discarded. Do not try to retemper the material. Do not add solvent, additive or adulterant to any component or mixed material.

Installation
ConoWeld No. 501
Pour a bead of the primer and spread with a squeegee before rolling to a minimum thickness of 5-10 mils. Use a short nap roller with a non-degradable core or nylon brush for working the primer into the substrate. At 70°F, allow the primer to dry for 6-24 hours before topcoating with No. 250. For additional information regarding No. 501, consult the ConoWeld data sheet or call Sauereisen.

ConoSpread No. 250
Pour the epoxy basecoat and spread with a screed rake to a minimum thickness of1/8 inch. Next, lightly backroll with a 'spiked' roller to remove any high/low spots left in the material.

Broadcast No. 251
The broadcast system consists of an aggregate and sealer. Broadcast all of the aggregate to rejection on to the No.
250 within one hour. Excess aggregate is removed by vacuum after 17 hours and the sealer is then applied by roller.

Vertical No. 252
The vertical formulation for cove base construction is trowel applied at a minimum thickness of 1/8 inch. No primer is required. To remove trowel marks, backroll the material with a water-dampened short nap mohair roller.als.

  • ConoWeld No. 501 200 ft2/gal. at 8 mils
  • ConoSpread No. 250 30 ft2 at 1/8 inch
  • Broadcast No. 251 40 ft2 at 15 mils
  • Vertical No. 252 35ft2 at 1/8 inch

*Quantities do not include losses during application.

SETTING/CURING

The ConoSpread - Chemical and Food Grade No. 250 series will take an initial set in 17 hours at 70°F. Do not allow water or chemicals on the material surface for a minimum of 48 hours. For temperatures below 70°F, cure a minimum of 72 hours prior to water or chemical exposure.

PACKAGING

ConoWeld No. 501 1 & 3 gal. units
ConoSpread No. 250 40.7 lb. unit/pail
Broadcast No. 251 56.7 lb. unit
Vertical No. 252 47.2 lb. unit/pail

CLEAN-UP

All equipment should be cleaned with MEK before material cures. If removal is required after cure, consult Sauereisen.

SHELF LIFE

Sauereisen No. 250 Series Liquids, Hardeners, and Powders have a shelf life of one (1) year when stored in unopened, tightly sealed containers in a dry location at 70°F. If there is a doubt as to the quality of the materials, consult Sauereisen.

CAUTION

Consult Safety Data Sheets and container label Caution Statements for hazards in handling these material.

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 is subject to reasonable deviation. Data should not be used for specification purposes.

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