Environmentally Friendly Wood-Flooring Adhesives<br>Challenges Moisture Resistance of Urethanes
Meta-Tec (patent pending) is a high-solids, one-part reactive cross-linking amide-ester-acrylate chemistry created by W.F. Taylor Co., Fontana, Calif., for wood flooring as well as other flooring materials and construction-adhesive applications. This system forms an interpenetrating network adhesive that exhibits early wet-lay properties of quick initial-grab "green strength," strong elastomeric bond, hydrophobic (waterproof) film and low-VOC emissions.
"Our new Meta-Tec technology-based generation of wood-flooring adhesives are stable products that react under a wide range of temperature and humidity conditions to solve the problems associated with urethane, solvent-based and emulsion-based adhesives -- without the worry of potentially unhealthy solvent or isocyanate emissions," said W.F. Taylor President Jack Raidy Jr.
"Taylor Meta-Tec adhesive technology is precisely what the wood-flooring industry has needed ever since the Clean Air Act and other air-quality restrictions were implemented. This is the first total solution for wood-flooring installations," said W.F. Taylor Executive Vice President Barry Wright.
Meta-Tec 2071 Tuff-Lok X-Link wood-flooring adhesive was tested to determine its moisture-transmission rate according to ASTM Method E96-00 Standard Test Methods for Water Vapor Transmission of Materials. The results obtained by an independent lab are shown in the table and compared with published data for two commercial moisture-cure urethane wood adhesives from a major supplier. The Meta-Tec product was shown to have as good or better resistance to moisture as the urethane products.
Taylor 2061 Tuff-Grip TPS wood-flooring adhesive is a transitional pressure-sensitive Meta-Tec formula that develops quick initial tack with over 400% more dry-film shear strength than pressure sensitive adhesives currently available. The initial tack promotes immediate bonding of the wood plank without excessive slippage, and it aggressively holds the normal bowing often characteristic of engineered plank products.
Meta-Tec adhesives form a flexible, cured bond that is proven to be an excellent solution for the prevention of hollow spots that would occur as a result of minor imperfections in the sub-floor. The hydrophobic bond repels moisture and offers vapor-retardant, alkali-resistant characteristics to wood-flooring installations.
Both of these VOC-compliant products were introduced at the National Wood Flooring Association conference in Palm Springs, Calif., and are available for shipment.