Witcobond® Water-based Polyurethane Dispersions provide formulators polymers with a range of high performance properties such as toughness, flexibility, weatherability, durability and haptics, while complying with increasingly demanding regulations on VOC.
Coatings and adhesive industries increasing demand for sustainable technical solutions has initiated a shift from solvent-borne towards water-based systems over past decades. UBE Urethane Systems developed Witcobond® polyurethane dispersions (PUD) to sustain and enable customers towards the development of high performance products, complying with the constantly evolving and more demanding regulations on volatile organic content (VOC) and industry related standards.
Formulators of water-based coating systems can choose from our broad range of Witcobond® polyurethane dispersions, including high solids systems, designed to meet specific application needs. UBE Urethane Systems offers a wide selection of ester, ether and polycarbonate types with anionic and nonionic backbones. A dedicated global technical team can sustain formulators to tune coatings properties like hardness, flexibility, toughness and chemical resistance. Witcobond® PUDs can be used in water-based heat curing coatings and textile treatments in combination with Trixene® Aqua BI crosslinkers to further improve adhesion, physical properties and heat stability.
Witcobond® polyurethane dispersions can be crosslinked with various agents to further improve chemical resistance, coating adhesion, and robustness. Our Trixene® Aqua BI range includes water-dispersed latent crosslinkers and adhesion promoters to formulate 1K or 2K stoving systems. When heated these multifunctional blocked isocyanates start crosslinking with complementary functional groups in the coating and substrate.
UBE Urethane Systems PUDs are widely used in the fiber sizing industry, and can be tailored for new requirements. They offer superior bonding of filaments in fiber and composite processing, and outstanding physical properties in end applications.
Witcobond® is also used for industrial coatings including soft touch applications where the haptics of normally harsh surfaces can be modified. Such coatings protect the base materials used in e.g. automotive interior facias and teletronic components, and provide improved aesthetics. Alternatively, harder Witcobond® products can be used in durable, chemically-resistant 1K and 2K systems, applied to hard substrates such as wood, metals, glass, plastics, concrete and masonry. Waterborne PUDs are broadly used in textile processing, typical applications range from full waterproof and weatherproof coatings, back coatings, laminating adhesives, pigment binders used in textile printing, and clothing with imperceptible finishes on yarns and fibers. Other functional textile uses include protective coatings on belts, ropes, braids, optical fibers and filament yarns.
Our technical team can tailor our polyurethane dispersions to meet specific customer needs for different balance of application properties and technical performance.
UBE Urethane Systems provide innovative polyurethane technology as key component for a range of coating systems, leveraging our expertise in urethanes to meet industry demand for sustainable solutions. Our focus is on three areas: water-based technology, low free technology and blocking technology. Providing solutions for a wide range of applications.
UBE Urethane Systems drive development of powerful low monomer prepolymers used as flexible formulation platform for adhesives and sealants and one component foams. Our focus is on the areas Low Free monomer technology and High NCO and higher functionality. Flexible formulation platforms which can be used in a diverse range of applications.
Do you have any questions about our products, are you looking for technical advice or are you searching for a local sales representative in your country? Please get in touch with us.
