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Technical Data Sheet (TDS)

SMP-920 Contractor Polymer

Polymer Wood Flooring Adhesive

Special features

  • Moisture cured wood adhesive
  • Non-etching
  • Requires no moisture testing (some restrictions apply)
  • Cleans easily even after cured

Product Description
STAUF SMP-920 Superior is an advanced formula polymer designed for professional
wood flooring installation. It replaces isocyanate-containing urethane adhesives. It is ozone and environmentally safe since it contains no solvents or hazardous materials.
SMP 920 has earned the highest GEV-EMICODE EC 1 ranking by the European Association for Control of Emissions for Flooring. See www.emicode.com for information. Because there is no water or solvent present, it will not cause dimensional changes to wood flooring. This adhesive is waterproof when
fully cured and will not emulsify if it gets wet.
SMP 920 spreads easily and has a non-slump formula that will help insure contact
and adhesive transfer. It allows fast installation even with complicated patterns due to its strong green grab and no flash time requirement. Rolling is neither required nor recommended. It offers superior flexibility and is designed to secure flooring, yet allow for normal movement during seasonal changes.
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. Backing of all flooring material must be solid and sound and free of any anti-adherents. 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.
No moisture testing is required for installation of engineered wood floor in new construction as long as a new Stauf #12 clip-on blade is used for every pail, there is 100% coverage of the adhesive on the subfloor, the spread rate does not exceed 35 SF/gal and concrete floors are at least 30 days old. The following conditions MAY NOT be present: Hydrostatic pressure, Excessive vapor emissions, Missing or compromised vapor barrier, Standing water or visible dampness, Uneven and/or unapproved sub floor materials, Improper substrate preparation, Excessive exterior water (damaged water pipes, sinks, icemakers, faulty plumbing, flooding, etc.), Excessive topical moisture, improper ventilation or conditioning, or faulty maintenance of flooring, Use of Adhesives as a moisture control system below grade.
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.
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, gypcrete, wooden sub floors, levelers, patches and light weight concrete must be primed. Fast curing cementitious leveling or patching compounds might reduce the flash and work time of water based products due to absorption.
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. There is no flash time, so installation should begin immediately. 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.
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. Do not install wood flooring with a moisture reading above 9%. Do not use adhesive as a leveling material. This adhesive will not prevent moisture-related damages to wood flooring caused by flooding, busted pipes etc., or where moisture conditions are in excess of limitations outlined in the Sub Floor Examination.

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 water
  • high shear strength
  • contains no solvents
  • contains no VOC (calc. per CA Rule 1168)
  • certified green
  • certified very low emission
  • nonflammable
  • high solids content
  • ozone friendly
  • Freeze/thaw stable
Installation Features
  • wet lay - no flash time required
  • strong green grab
  • non-slump formula
  • bridges normal sub floor variations
  • very low odor
  • cleans with acetone
  • no rolling required
  • excellent spread rate
  • long open time
  • spreads easily
  • higher temp & RH will shorten drying time
  • No risk of sensitization
Long Term Features
  • resistant against aging
  • remains elastic
  • suitable for radiant heat systems with primer
  • allows normal dimensional changes in wood flooring
  • adhesive is waterproof when cured
  • No health hazards
  • Stronger shear srength reduces cupping
Approved Flooring
  • Engineered Wood Flooring
  • Parquet
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
  • Wet Concrete Slab up to 25#/24hrs/1,000SF and 100% RH
Approved Primers
  • Primer is normally not required
  • STAUF AQP-200 Eco-Prime
Approved Sealers
  • STAUF ACS-210 True-Seal
Approved Leveling Compounds
  • STAUF ULC-500 Universal Leveling Compound
  • STAUF SLC-540 Self Leveling Compound
  • STAUF QFF-560 Quick Feather Float
  • STAUF RLC-580 Fiber Level
Approved Trowels and Spread Rate
  • Engineered Floors-#5 (3/16 x 1/4 x 3/8 in) up to 60 SF/gal.
  • Moisture Barrier-#12: up to 35 SF/gal. (Must use one per pail)
  • Underlayments-#15 (3/32 x 3/32 x 3/32 in) up to 130 SF/gal.
Cure Time until Normal Traffic
  • between 24 and 48 hours
Clean-Up
  • Use acetone while wet
  • Use plastic scraper and terry cloth when dry
Temperature Range during Installation
  • 50-90F (10-32C)
Relative Humidity Range during Installation
  • 30% - 80%
Packaging Size
  • 3 gal. Plastic Pail
  • 48 per pallet
Color
  • Cream
Shelf Life
  • 12 Months in original, unopened container
Shear Strength
  • 229 psi (1.6 N/mm²)
Water Vapor Permeability [ASTM E-96]
  • 0.22 g / 24h * m² * mmHg
  • 0.22 perms* inches
Open Time30% R/H50% R/H80% R/H
50�F/10�C2 hours 1-1/2 hours 1 hours 
70�F/21�C1-1/4 hours 1 hours 3/4 hour 
90�F/32�C60 mins 50 mins 40 mins 
Revision: 2021-08-25 09:08:39

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