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Technical Data Sheet (TDS)

AEM-852 Premium Acrylic-Ester Wood Adhesive

Acrylic Ester Wood Flooring Adhesive

Special features

  • Capable of Readhering
  • Easy to Spread
  • Helps eliminate Hollow Spots
  • Long Open Time

Product Description
STAUF AEM-852 EZ-TAC is a premium acrylic ester based adhesive for installation of wood flooring, rubber and vinyl tiles and planks as well as the underlayments to go with the above types of flooring. AEM-852 is a nonhazardous, VOC compliant wood flooring adhesive with zero VOC's (calculated). This adhesive can be used on most commonly found sub-floors and for all brands of engineered wood flooring designed for "glue-down" installations. The AEM-852 adhesive is fully warranted and its performance is guaranteed. The excellent pressure sensitive characteristic helps to minimize call backs from "popping" or "hollow" spots. AEM-852 should not be used on flooring made from bamboo, Kempas or Teak wood.
Pre-Installation Checklist
A successful installation requires proper preparation of the sub floor. Read and understand all applicable guidelines and technical data sheets before installation. Follow industry standards and flooring manufacturer's recommendations for sub floor moisture content, design, layout and application of flooring materials. All slab constructions must meet the specific requirements of the floor covering to be installed.
Sub Floor Examination
Prior to installation, the sub floor must be checked according to NWFA installation guidelines. It must be solid and sound, flat, permanently dry, clean, free of chaps, indentations and anti-adherents, as well as resistant to pressure and tension. Moisture content of all floors must be measured before installation.
All wood floors should have 6-9% moisture content at installation. There should be no more than a 4-5% variance in moisture content between the wood flooring and any wood sub floor. See NWFA guidelines and the wood flooring manufacturer's recommendations for details.
Moisture content in concrete sub floors must be below 3#/24h/1,000 sq. ft. using the Calcium Chloride Test or below 75% RH using an in-situ probe per ASTM F1869 and F2170.

Sub Floor Preparation
Depending on type and condition of sub floor, a mechanical treatment (e.g. mechanical brushing, grinding or sanding) may be required. Intensity of such work must be determined at the site by the installer. Dust, paint, residual adhesives or other surface contaminants must be removed by suitable means. Cleaning the surface with an industrial vacuum cleaner is recommended. Cracks and gaps must be filled with concrete crack filler unless they are expansion joints. Level when necessary to 3/16 inches within 10 feet. Heated sub floors must be primed.
Installation Procedure
Spread the adhesive with the appropriate notched trowel. Avoid excessive adhesive thickness by passing the trowel evenly through the adhesive at a 45 degree angle. Observe the appropriate flash time. Lay the flooring into the adhesive, correctly position it and press down firmly. Rolling is neither required nor recommended. Be sure to check the boards at regular intervals to make certain good adhesive transfer from sub floor to flooring is achieved. Bowed boards or boards over low spots should be weighted down until the adhesive cures.
Storage
Store and transport protected from freezing. Recommended minimum temperatures are 35 °F for transport and 40 °F for storage. Do not stir product if frozen, allow to thaw completely.
Limitations
When using other than STAUF products in conjunction with STAUF primers, sealers, leveling compounds, or adhesives, STAUF denies any and all responsibility for any ensuing problems and/or damages without prior written authorization from STAUF.
Do not install solid wood below grade. Do not use on concrete with curing agents or sealers except approved STAUF Sealers. Do not use on damp sub floors. Do not install wood flooring with a moisture reading above 9%. Do not use adhesive as a leveling material.

This adhesive is mold and mildew resistant and water resistant when fully cured. However, it will not prevent moisture-related damages to wood flooring unless it is used as a moisture barrier (if applicable) within the limitations set forth in the technical data sheet.
In case of accident, injury, spill or exposure, see SDS sheet for information. Consult technical data sheet at www.staufusa.com for updated information.
The foregoing representations are based on the results of our most current product and material testing within a controlled environment and are of a non-obligatory advisory nature only. As such, they do not constitute an express or implied warranty of any kind including the Warranty of Merchantability and/or Fitness for a Particular Purpose. Because we have no control over the actual quality of workmanship, materials used and worksite conditions, STAUF USA, LLC. will in no event be liable for any incidental and/or consequential damages. herefore, we strongly recommend that prior on-site testing be conducted to refer to and study the suitability of the product for the intended purpose. With the release of this technical information sheet all its prior versions become invalid. For warranty and warranty disclaimer information please see our Limited Lifetime Warranty @ www.staufusa.com
General Features
  • LEED qualified
  • contains no isocyanates
  • contains no solvents
  • contains no VOC (calc. per CA Rule 1168)
  • nonflammable
  • dispersion base cleans with water
Installation Features
  • grabs quicker, less slippage
  • non-slump formula
  • very low odor
  • cleans with warm water and soap
  • high spread rate
  • long open time
  • spreads easily
  • higher temp will shorten drying time
Long Term Features
  • resistant against aging
  • remains elastic
  • suitable for radiant heat systems with primer
  • No health hazards
Approved Flooring
  • Vinyl Tiles and Planks (VCT, LVT, SVT, LVP, VET)
  • Rubber Flooring
  • Parquet
  • Parquet, Engineered
  • Bamboo or Eucalyptus NOT approved
  • Underlayments
  • Engineered Flooring, 3/8"-3/4", up to 5" wide
  • Flooring with HDF/MDF core NOT approved
Approved Sub Floors
  • Concrete Slabs
  • OSB (underlayment grade)
  • Plywood (underlayment grade)
  • Felt backed Sheet Vinyl (well bonded, sanded, asbestos-free)
  • Ceramic Tiles
  • Stone, Terrazzo
  • Cured Leveling Compounds
  • Radiant Heated Sub Floors
  • Stained Concretes (well bonded)
  • Cured and primed cementitious levelers
  • VCT (well bonded, sanded, asbestos-free)
  • (do not install non-porous flooring over non-porous sub floors)
Flash Time (dry lay)
  • 45 - 60 min
Open Time (dry lay)
  • up to 4 hrs
Approved Primers
  • STAUF AQP-200 Eco-Prime
Approved Sealers
  • STAUF ACS-210 True-Seal
Approved Leveling Compounds
  • STAUF SLC-540 Self Leveling Compound
  • STAUF QFF-560 Quick Feather Float
Approved Trowels and Spread Rate
  • Engineered Floors-#5 (3/16"x1/4"x3/8") up to 60 SF/gal.
  • Parquet-#3 (5/32"x1/8"x3/16") up to 70 SF/gal.
  • Underlayments-#15 (3/32"x3/32"x3/32") up to 130 SF/gal.
  • Flat backed Material-#1 (1/16"x1/16"x1/16" V notch) up to 170 SF/gal.
  • Rough backed Material-#2 (1/8"x1/8"x1/16" V notch) up to 90 SF/gal.
Cure Time until Normal Traffic
  • approx. 24 hours
Clean-Up
  • Use soap and water
Temperature Range during Installation
  • 50-90F
Relative Humidity Range during Installation
  • 30% - 80%
Packaging Size
  • 4 gal. Plastic Pail
  • 48 per pallet
Color
  • White
pH value of concrete
  • must be between 7 and 11
Transportation
  • above 35F (do not stir if frozen, allow to thaw completely)
Storage
  • above 40 F, protect from freezing
Shelf Life
  • 12 Months in original, unopened container
Revision: 2017-09-19 12:14:07

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