Quarterly Installation Newsletter

We recently had the JJ Haines Loyalty Club Show in Baltimore which featured new and existing products from our suppliers. I took time to do a pre-show walk through to see what has changed in a year’s time. As I have said before, change in the flooring world is a daily process anymore and requires you to keep up with all that is changing. Things I noticed and will expand on below:

  1. Moisture continues to dominate the adhesive world

  2. Moisture Sealers for residential vinyl without the need for excessive subfloor prep

  3. Wide Width Solid and Engineered Hardwood

Moisture Limits with adhesives continue to push the boundaries, especially with moisture sensitive products like hardwood flooring. Bostik has just introduced two new adhesives; GreenFORCE and Utra-Set Single Step2. Both adhesives require no moisture testing; the slab must be at least 30 days old. What is the difference between the two adhesives? The Ultra-Set Single Step2 has sound reduction capability where as the GreenFORCE does not. Both adhesives are easy to clean off prefinished flooring before and after cure. https://www.youtube.com/watch?v=CRAh8yHh2Ok

GreenForce is a high performance adhesive, can bridge cracks up to 1/8′′ and moisture control membrane all in one. Bostik’s breakthrough AXIOS® Tri-LinkingTM Polymer Technology used in this formulation maintains superior long term durability and moisture protection properties of high end urethane adhesives and has zero VOC’s and does NOT contain any water. However, it is easier to spread and clean off of prefinished flooring before and after cure.

Ultra-Set Single Step2 is a high performance adhesive, moisture control, can bridge cracks up to 1/8′′, and sound reduction membrane all in one. Bostik’s breakthrough AXIOS® Tri-LinkingTM Polymer Technology used in this formulation maintains the superior long term durability, moisture control and sound abatement properties of high end urethane adhesives. However, it is easier to spread and clean off of prefinished flooring before and after cure. This adhesive contains 1% recycled rubber material, has zero VOC’s and does NOT contain any water.

Armstrong has just introduced a new spray adhesive called Flip for its Commercial VCT & LVT, and Commercial Sheet Flooring products (not Migrations or Linoleum). Flip is good up to 90% Relative Humidity, allows floors to be heat welded the same day, allows areas to be opened back up to traffic immediately and is suitable for use under rolling loads. http://www.armstrong.com/commflooringna/ spray-adhesive.html

Also, Armstrong’s S-525 Clear Thin Spread Adhesive (good for Bio Based Tile and VCT) has raised its maximum RH limit from 85% to 90% Relative Humidity. S-525 is also good up to 7-lbs. Calcium Chloride.

JJ Haines will also be bringing on a new trowelable high moisture LVT adhesive from Metroflor called Prevail 6000. Prevail 6000 is good up to 90% Relative Humidity and 8-lbs. Calcium Chloride. http:// www.metroflorprevail.com/pdf/PREVAIL%206000%20TDS.pdf

Please note: I will send a Part 2 Newsletter showing “high moisture adhesives” for resilient/carpet, and hardwood.

Moisture Sealers & Isolation Membrane for residential and commercial resilient flooring product DriTac has just introduced Eco DriSeal, which is a 1 part roll on moisture control system good up to 12 -lbs. Calcium Chloride and 85% Relative Humidity and allows for same day flooring installation. Eco DriSeal is also an Isolation Membrane that can cover up cutback adhesive residue and prevent it from bleeding up through new flooring. Eco DriSeal has Zero VOC’s & Solvents and may be used with various flooring types:

• Engineered Hardwood • Carpet Tiles • Laminate Flooring
• Luxury Vinyl Tile & Plank • Fiberglass Back Sheet Vinyl • Floating Floors

Wide Width Solid and Engineered Hardwood. Consumer trends and demands are asking for wider width hardwood floors that can be susceptible to cupping issues. You are starting to see more 5′′ and wider widths in Solid Hardwood and now 7′′ and wider products in Engineered Hardwood. The questions I get from installers and retailers is; how can I keep these products from cupping in a naildown installation? For me, the answer to that question can differ on what market you install (existing residential or builder/remodel). For the existing residential customers, there are several steps you can take to help reduce cupping in these wide width products:

  • Ensure that the wood subfloor is 13% or less.

  • Acclimate flooring

  • The difference between the moisture content of the subfloor and the hardwood flooring must not exceed 3% for plank flooring.

  • Glue assisted nailing. Apply a serpentine bead of Urethane Construction Adhesive (Mapei 905)

  • Nailing pattern of 1′′ – 2′′ from ends and every 4′′ along the edge of the board for both solid and engineered hardwood.

  • Maintain in home relative humidity at 35% – 55%

Builder market, I personally would try to switch to an engineered product and then glue it down (regardless of the subfloor type) using a good quality urethane adhesive ensuring 100% coverage. If they insist on a wide width solid, follow the guidelines above. Regardless, the climate conditions must be maintained to assist in the performance of these products.