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Model # R1509-4

Internet # 202672041

Store SKU # 422564

4-gal. Wood and Bamboo Flooring Urethane Adhesive

This item has been discontinued.
The Home Depot no longer carries this specific product.

$149.00 /each


Model # R1509-4

Internet # 202672041

Store SKU # 422564

Roberts R1509 is 100% solids moisture cure urethane adhesive glue formulated for the installation of solid, engineered and parquet wood flooring. It is also recommended for bamboo flooring. Roberts R1509 is a solvent free adhesive which meets the Low VOC requirements of the south coast air quality management district.

  • For bonding solid wood flooring, bamboo, flat milled shorts, finger/block parquet (plain back), engineered and acrylic impregnated flooring recommended for glue-down applications, cork underlayment and plywood
  • Moisture cure urethane wood flooring adhesive that offers a tenacious bond to all types of wood and bamboo flooring
  • Works with all types of wood for glue down applications
  • Open time: up to 80 minutes, working time: up to 120 minutes, cure time: 8-10 hours
  • Environmentally friendly formula that may contribute one leed point for low-emitting material-adhesive and sealant (IEQ Credit 4.1), zero VOC (calculated), 0% VOC by weight
  • Covers approximately 45-55 sq. ft. per gal. when installing engineered wood flooring that is equal to or less than 1/2 in. thick using a 1/4 in. x 1/4 in. x 1/4 in. v-notch trowel
  • Covers approximately 30-40 sq. ft. per gal. when installing solid wood and bamboo that is equal to or less than 3/4 in. thick when using a 1/4 in. x 1/4 in. x 1/4 in. square notch trowel
  • Covers approximately 30-40 sq. ft. per gal. when installing engineered wood flooring that is greater than 1/2 in. thick when using a 1/4 in. x 1/4 in. x 1/4 in. square notch trowel
  • Superb flexibility to expand and contract with natural movement of wood flooring
  • Does not contain any water, 100% solids formulation
  • Incredible bond strength
  • Use Roberts R5505 for clean-up on floor and tools

Info & Guides

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Container size (qt.) 
Maximum coverage area (sq. ft.) 
Product Width (in.) 
Adhesive Type 
Solid Wood 
Color Family 
Beige / Cream 
Commercial / Residential 
Commercial / Residential 
Dry time (hours) 
Floor/wall use 
Flooring Product Type 
Flooring Adhesive 
Latex based 
Product Weight (lb.) 
55.2 lb 
Product type 
Solvent free 
Use with 
Water based 
Warranty / Certifications
Lifetime Warranty 
Manufacturer Warranty 
Limited Lifetime Manufacturer Warranty 


Rated 3.2 out of 5 by 21 reviewers.
Rated 3.0 out of 5.0 by Buy the MS advance + instead Previously, I used the Taylor MS Advance plus to install 1800 sq ft of 7/16" bamboo flooring. To finish the master bath with the remaining flooring, I had to purchase this product, as the stores don't carry the Taylor product on the shelves. In comparison, this product was thinner, leaving messy strings of adhesive here and there, requiring constant cleanup. Combined with the fact that it is colored brown made it difficult to detect. Another major problem is the amount of waste. The metal bucket containing the product fails to seal completely, resulting in a skin forming on the top of the product overnight. If it was applied too thickly, it tended to ooze between the joints to the surface. The good- it sticks well, the flooring slid into place easily, and it cures/dries quickly. My advice, order the Taylor product instead. February 13, 2015
Rated 1.0 out of 5.0 by Beware using this mastic I recently installed a solid bamboo flooring using the Roberts (R1509-4) Urethane Adhesive and if I could give a “0” for this product I would. BEWARE, do not use this stuff if you don't want damage to the floor finish, especially if your a DIYer. Unless you immediately, and thoroughly clean off finger smudges, glue drips and squeeze-outs the glue will etch the finish. I used this stuff because I wanted to save a few bucks. Bad decision. Plus the glue skinned over in less than 10 minutes so you better have 3 or 4 people working with you. I had previously installed a glue down floor in another larger room using the Morning Star adhesive. The Morning Star glue cleaned up easily with mineral spirits, even after a week, but it was more expensive. I have used everything I can think of from mineral spirits to WD40 with a Mr Clean scrub pad. Even after scraping the glue spots with a razor knife to the finish the etching remains. Luckily the bad floor job is in a back bedroom and will be covered by an area rug. Otherwise I'd rip the stuff out and start over. May 6, 2015
Rated 1.0 out of 5.0 by x old, looks was open before, it was hard to spread. come out between wood peacees June 30, 2015
Rated 4.0 out of 5.0 by very good adhesive adhesive was easy to use. Bamboo floor was glued to bare cement floor extremely well. some adhesive waste, if not used the 4 gallons on same day. hard to reseal lid tightly and a solid coat forms on top and needs to be removed the following day. February 26, 2015
Rated 3.0 out of 5.0 by Alot more messy than the old stuff I last installed wood flooring about 13 years ago. The old mastic I used then was a lot easier to use than this stuff. This may have more of a cushioning effect but it foams and gets stuck in the cracks and oozes out between edges and makes gaps because it pushes them apart. Or maybe since I am 13 years older I am getting too old for this stuff?? November 12, 2013
Rated 5.0 out of 5.0 by This glue sticks!! I used this glue to install solid bamboo flooring. This glue is very messy so plan on having a gallon of mineral spirits with you. It cleans off easy with mineral spirits but stays on your skin for a few days before it will peel off. Good product and would use it again. November 27, 2012
Rated 3.0 out of 5.0 by A sticky mess I purchased three cans of this very expensive adhesive and the first can I opened had about an inch of hardened glue. I had to use a knife to cut away that layer. This product also expands while exposed to the air so you have to work it quickly and I mean work it. At first it was fairly easy to spread, but the longer the can was open, the harder it became. Another problem with the expanding is after your flooring has been put down and you are several row ahead, you can look back and see it coming up between the boards. What a pain! BTW- make sure you purchase the wipes because if you do not, you will regret it! June 10, 2014
Rated 4.0 out of 5.0 by Good Product but... next day use.... The bucket that the adhesive comes in once opened cannot be resealed for the next days use. I found that if you place plastic garbage bags in the bucket pressed up against and touching the glue it helps keep the glue from setting. The plastic bag is easily removed and leaving the glue with a thin layer of dried glue that can be removed with a razor knife. May 4, 2014
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