Labor Day Sale
Labor Day Sale

Mapei Eco 995

Version: Feb. 19, 2015


Ultrabond ECO 995 is MAPEI's premium, 100%-solids, one-component, moisturecuring urethane adhesive for all types of wood flooring and bamboo. Ultrabond ECO 995 can be used in a single-coat application method that provides a superior bond with moisture vapor emission control on concrete slabs. Ultrabond ECO 995 also provides sound-reduction properties, making it suitable for use in multi-unit housing projects.


  • Moisture barrier, sound reduction and bonding system in a single product
  • 100%-solids formulation; moisture-cured and with no solvent added
  • Durable bond strength for exotic and domestic wood species
  • Lifetime bond performance warranty
  • Low-odor formula with negligible volatile organic compound (VOC) content
  • Formula based on rapidly renewable raw materials
  • Easy to trowel with excellent trowel-ridge holdout for proper adhesive bonding
  • Can be used with ceramic tile and stone for mixed media installations with wood flooring


LEED Points Contribution LEED Points
MR Credit 5, Regional Materials* Up to 2 points
MR Credit 6, Rapidly Renewable Materials 1 point
IEQ Credit 4.1, Low-Emitting Materials - Adhesives & Sealants 1 point

* Using this product may help contribute to LEED certification of projects in the categories shown above. Points are awarded based on contributions of all project materials.


  • Approved for use with solid and engineered exotic and domestic wood flooring of any width and length; finger block parquet; acrylic impregnated wood and laminated plank; bamboo; and reground rubber or cork underlayments
  • Approved for bonding plywood panels to concrete subfloors as required for nail-down or double-glue installation methods of the final flooring
  • Interior residential (rental apartments, condominiums and homes)
  • Interior commercial (office buildings, hotel rooms and hallways, and restaurant dining areas)
  • Interior heavy commercial (hotel lobbies, convention centers, airports and department stores)
  • Interior institutional (hospitals, schools, universities, libraries and government buildings)


  • Do not install over any substrates containing asbestos.
  • For interior installations only
  • Not recommended for flooring designed for nail-down installations only
  • Do not use to install solid hardwood or bamboo flooring below grade.
  • Do not install over existing perimeter-bonded, loose-lay vinyl flooring or any other dimensionally unstable flooring.
  • Not recommended for prefinished cork flooring
  • Install flooring only in areas recommended by the wood-flooring or bamboo manufacturer.
  • Do not apply over any adhesive residues, including cutback adhesive.
  • Do not install if standing water is observed on the surface of any substrate.
  • Do not install in areas with known hydrostatic moisture problems.
  • Do not install if the substrate has a glass-like surface.
  • Use only when the substrate temperature is between 50F and 90F (10C and 32C), and when the ambient relative humidity (RH) is between 20% and 80%.
  • Patch and level with exterior-rated, cement-based products only.


  • Concrete (at least 14 days old) with an appropriate moisture vapor barrier properly installed beneath the slab
  • Properly prepared cement terrazzo
  • Exterior-grade plywood and other approved wood substrates (per wood-flooring manufacturer recommendations). Note: Moisture-barrier properties do not apply to installations over wood underlayments. Install using the Traditional Installation Method detailed in the "Product Application" section below.
  • Existing, properly prepared ceramic tile as long as glazed surfaces are abraded
  • Exterior-rated, cement-based self-leveling underlayments and patching compounds
  • MAPEI epoxy moisture barriers
  • Properly prepared, primed gypsum underlayments that meet the requirements for compressive strength according to ASTM F2419. Note: Moisture-barrier properties do not apply to installations over gypsum underlayments. Install using the Traditional Installation Method detailed in the "Product Application" section below.
  • Radiant-heat systems that have been properly installed. Note: Moisture-barrier properties do not apply to installations over radiant-heat systems. Install using the Traditional Installation Method detailed in the "Product Application" section below.

Consult MAPEI's Technical Services Department for installation recommendations regarding substrates and conditions not listed.


  • All substrates must be structurally sound, dry, solid and stable with no visible standing water and dry to the touch.
  • The substrate should be clean and free of dust, dirt, oil, grease, paint, curing agents, concrete sealers, loosely bonded toppings, loose particles, and any other substance or condition that may prevent or reduce adhesion.
  • Substrates must be flat to 3/16" in a 10-ft. span (4,5 mm in a 3,05-m span).
  • Concrete surfaces must be porous and have a light broom finish. Do not install over extremely smooth, non-porous or glass-like concrete surfaces. If the substrate is glass-like or non-porous, it must be mechanically profiled and prepared by shotblasting, sandblasting, water jetting, scarifying or other engineer-approved methods to an International Concrete Repair Institute (ICRI) concrete surface profile (CSP) #2 to #3 standard. Note: Diamond grinding is an approved method for subfloor preparation in small areas that are not accessible by the methods mentioned above.
  • Concrete and exterior-rated, cement-based underlayments/ patches must be cured and free of any hydrostatic and/or moisture problems.
  • See MAPEI's "Surface Preparation Requirements" document in the Reference & Installation Guides section of the Floor Covering Installation Systems page on MAPEI's Website.


Note: Utilize all appropriate personal safety equipment during product use. Refer to the Safety Data Sheet for more information.

  • Ready to use; no mixing is necessary.

(for use over concrete substrates)

Read all installation instructions thoroughly before installation. Refer to the wood-flooring manufacturer's guidelines for acclimation requirements and complete installation instructions.

  1. Remove the two clip-on trowel attachments found inside the Ultrabond ECO 995 pail and select the appropriate one for the flooring to be installed. For wood flooring less than 3/8" (10 mm) thick, use the clip-on trowel measuring 1/8" x 1/8" x 1/8" x 1/16" (3 x 3 x 3 x 1,5 mm). For wood flooring between 3/8" and 3/4" (10 and 19 mm) in thickness, use the clip-on trowel measuring 3/8" x 3/16" x 3/8" x 1/16" (10 x 4,5 x 10 x 1,5 mm).
  2. Using the trowel's flat side, key the adhesive into the subfloor, creating a smooth, void-free surface.
  3. Once the adhesive has been keyed in, immediately spread the adhesive using the provided clip-on trowel. Trowel ridge lines should be perpendicular to the wood-flooring installation direction. Hold the trowel at a 60 to 90 angle to the subfloor, making sure that the subfloor is covered 100% with adhesive and that no void spots appear other than the "valley bottoms" created by the trowel. These areas will fill in as the wood is installed.
  4. Only apply as much as can be installed within 45 to 60 minutes.
  5. Install wood flooring in strict accordance with the wood-flooring manufacturer's written instructions.
  6. Install flooring immediately, pressing firmly into the adhesive bed to ensure that all ridges are compressed into a monolithic layer. Periodically check for 100% coverage over the subfloor and transfer to the back of the flooring.

Note: Use fresh clip-on trowel attachments for each pail of Ultrabond ECO 995 used. Do not reuse clip-on trowel attachments. Proper coverage is paramount for warranty coverage.

(for use over wood, gypsum, radiant-heat floors and other moisture-sensitive substrates)

Read all installation instructions thoroughly before installation. Refer to the wood-flooring manufacturer's guidelines for acclimation requirements and complete installation instructions.

  1. Select the appropriately notched trowel (see the "Approximate Coverage - Traditional Installation Method" section) and spread the adhesive evenly over the subfloor, keeping the trowel at a 45 angle to the subfloor.
  2. Only apply as much as can be installed within 45 to 60 minutes.
  3. Install wood flooring in strict accordance with the wood-flooring manufacturer's written instructions.

(for plywood sheets over concrete substrates)

  1. Score 3/8" (10 mm) deep kerf cuts every 8" to 10" (20 to 25 cm) on the underside of 4' x 4' (1,2 x 1,2 m) or 2' x 8' (0,6 x 2,4 m) sheets of 3/4" (19 mm) exterior-grade plywood, using a circular saw per NWFA installation guidelines.
  2. Using the 1/8" x 1/8" x 1/8" x 1/16" (3 x 3 x 3 x 1,5 mm) notch trowel, apply the adhesive to the substrate in a smooth, uniform, void-free layer.
  3. Set the plywood sheets into the wet adhesive. Ensure 100% coverage and transfer for moisture control.
  4. Allow the adhesive to cure for 12 hours before sanding or preparing the plywood sheets to receive flooring.
  5. Install flooring to the surface of the prepared plywood by either nailing, stapling, or bonding using Ultrabond ECO 995. Do not allow nails or staples to penetrate through the plywood and enter the membrane, as this will void the moisture control warranty.


  • Ultrabond ECO 995 is extremely difficult to remove when cured. Immediately clean any adhesive smudges from tools and the flooring material's surface with Ultrabond Urethane Cleaner while the adhesive is still fresh/wet.

Product Performance Properties

Laboratory Tests


Adhesive type

Moisture-cured polyurethane

Solids content


VOCs (Rule #1168 of California's SCAQMD)

< 20 g per L


14 lbs. per U.S. gal. (1,69 g per mL)


Smooth paste


Off white

Shelf life

1 year when stored in original, unopened packaging at 73F (23C)

Storage conditions

50F to 90F (10C to 32C)

Flash point (Tag)

> 200F (93C)

Perm rate (ASTM E96)

< 0.15 perms

Protect containers from freezing in transit and storage. Provide for heated storage on site and deliver all materials at least 24 hours before work begins.

ASTM Standards for Sound Reduction; MAPEI Corporation and MAPEI Inc. certify that the following sound tests (for tile and wood flooring) were conducted and results supplied by NGC Testing Services, Buffalo, NY.

Sound-Reduction Ratings - Engineered Wood1 3/8" (10 mm) Thick Over 6" (15-cm) Concrete Slab2

ASTM Test Method

No Suspended Ceiling

Suspended Gypsum Ceiling

ASTM E90-09/E413-04 (STC) - Airborne sound

50 (NGC Test No: 5010020)

67 (NGC Test No: 5010019)

ASTM E492-09/E989-09 (IIC) - Impact sound

50 (NGC Test No: 7010034)

68 (NGC Test No: 7010037)

ASTM E2179-03 (Delta IIC) - Impact sound

21 (NGC Test No: 7010035)


Assembly details:

MAPEI's Ultrabond ECO 995 wood-flooring adhesive applied with clip-on trowel attachment

1 1 layer of 3/8" thick x 3" wide (10 mm x 7,5 cm) random-length, oak, engineered, prefinished hardwood flooring

2 6" (15 cm) thick reinforced concrete slab; weight is 70 psf (366,1 kg per m2)

Application Characteristics

Engineered Wood Flooring

Flash Time*

Working Time**

Adjustability Time***

At 50F (10C) and 80% RH

0 minutes

45 to 60 minutes

2 to 3 hours

At 73F (23C) and 50% RH

0 minutes

45 to 60 minutes

2 to 3 hours

At 90F (32C) and 20% RH

0 minutes

45 to 60 minutes

4 to 5 hours

* Flash time is the recommended amount of time for a freshly applied adhesive to remain exposed to the air before the installation of floor covering.

** Working time is the maximum amount of time that an adhesive can remain exposed to the air and still effectively bond to the floor covering. 

*** Adjustability time is the window of time during which the floor covering can be repositioned without compromising the bond of the adhesive. 

Note: Working time may vary based on temperature, humidity, substrate porosity, trowel size and jobsite conditions.



Metal pail, 5 U.S. gals. (18,9 L)

Approximate Coverage - Moisture-Control Method*

Typical Trowel


For wood flooring > 3/8" (10 mm) and < 3/4" (19 mm) in thickness: V-notch with lift spacers (included in package) - 3/8" x 3/16" x 3/8" x 1/16" (10 x 4,5 x 10 x 1,5 mm)

30 to 40 sq. ft. per U.S. gal.

(0,73 to 0,98 m2 per L)

For wood flooring less than < 3/8" (10 mm) in thickness: V-notch with lift spacers (included in packaging) -1/8" x 1/8" x 1/8" x 1/16" (3 x 3 x 3 x 1,5 mm)

30 to 40 sq. ft. per U.S. gal. 

(0,73 to 0,98 m2 per L)

Approximate Coverage - Traditional Installation Method*

Flooring Type

Typical Trowel Coverage


Reground rubber and cork underlayments

1/16" x 1/16" x 1/16"

(1,5 x 1,5 x 1,5 mm) square-notch

125 to 185 sq. ft. per U.S. gal. 

(3,06 to 4,53 m2 per L)

Finger block parquet

1/8" x 1/8" x 1/8"

(3 x 3 x 3 mm) square-notch

70 to 80 sq. ft. per U.S. gal. 

(1,71 to 1,96 m2 per L)

Wood flooring, < 1/2" (12 mm) thickness

3/16" x 5/32"

(4,5 x 4 mm) V-notch

45 to 55 sq. ft. per U.S. gal. 

(1,10 to 1,35 m2 per L)

Wood flooring, 1/2" to 5/8" (12 to 16 mm) thickness

1/8" x 1/4" x 1/4"

(3 x 6 x 6 mm) square-notch

40 to 50 sq. ft. per U.S. gal. 

(0,98 to 1,22 m2 per L)

Wood flooring, > 5/8" (16 mm) thickness

1/4"x 1/4"x 1/4"

(6 x 6 x 6 mm) square-notch

30 to 40 sq. ft. per U.S. gal. 

(0,73 to 0,98 m2 per L)

* Trowel dimensions are depth/width/space. Coverage shown is for estimating purposes only. Actual jobsite coverage may vary according to substrate conditions, type of trowel used and setting practices.


  • Protect from light traffic for at least 12 hours. Protect from heavy traffic for at least 24 hours.
  • Building owners should become aware of the woodflooring manufacturer's guidelines for climate-control settings (temperature and humidity). These conditions must be monitored and kept constant to ensure the overall performance and long-term success of the installation.

Refer to the SDS for specific data related to VOCs, health and safety, and handling of product.


Before using, user shall determine the suitability of the product for its intended use and user alone assumes all risks and liability whatsoever in connection therewith. ANY CLAIM SHALL BE DEEMED WAIVED UNLESS MADE IN WRITING TO US WITHIN FIFTEEN (15) DAYS FROM DATE IT WAS, OR REASONABLY SHOULD HAVE BEEN, DISCOVERED.

We proudly support the following industry organizations:

MAPEI Headquarters of the Americas

1144 East Newport Center Drive 

Deerfield Beach, Florida 33442 

1-888-US-MAPEI (1-888-876-2734) / 

(954) 246-8888

Technical Services

1-800-992-6273 (U.S. and Puerto Rico) 

1-800-361-9309 (Canada)

Customer Service

1-800-42-MAPEI (1-800-426-2734)

Services in Mexico

0-1-800-MX-MAPEI (0-1-800-696-2734)

Edition Date: February 13, 2015 

PR: 5837      MKT: 14-1262

For the most current BEST-BACKEDSM product data and warranty information, visit

All Rights Reserved. Printed in the USA. 2015 MAPEI Corporation.