Edgebanding with hot melt adhesives!
For decades, edgebanding of wood-based panels with a variety of edgebands has been an established practice in the furniture industry. The quality demands concerning visual appeal, the technological progress in engineering, and also the almost unlimited diversity of materials to be processed - all of these factors represent special challenges for the adhesive technology. In modern, high-quality furniture manufacture, the quality of the edgebanding is increasingly becoming a key criterion for evaluating the quality of the entire furniture item. The end customer demands a glueline that is hardly visible and perfect.
Not least of all due to the development of ultramodern manufacturing methods, like laser, plasma or HotAir technologies, the industry has been talking about the so-called “zero bondline“ for a long time. These technologies are often using edgebands precoated with a reverse coextruded polymer material. The manufacture of these coextruded edgebands, however, is limited to thermoplastic materials, and these, due to the continuous and very involved manufacturing process, can not be as widely used.
Jowat SE has met these challenges and offers modern and innovative solutions for these new, but also for the conventional bonding technologies, and they all lead to the “zero bondline“. A milestone was the development of unfilled EVA hot melt adhesives for edgebanding, and this makes Jowatherm® 280.30 a real standard classic. A modern improvement of the recent generation is Jowatherm® 280.50, which has become established due to the excellent adhesion properties and the very wide processing window as very tolerant allrounder. Higher demands with regard to heat resistance can be met using hot melts based on polyolefines.
Jowat-Toptherm® 237.10 meets exactly this requirement, but can still be processed just like a conventional hot melt based on EVA. Apart from hot melts for conventional bonding methods. Jowat also offers hot melts for precoating of edgebands, which then can be processed later by like laser, infrared or HotAir technologies.
Jowat-Toptherm® 237.2x (HotAir) and Jowat-Toptherm® 237.9x (laser, NIR, HotAir) can be applied by nozzle or roller applicator onto primer-precoated edgebands. Due to the excellent adhesion characteristics, Jowat-Toptherm® hot melt adhesives are suitable for all standard edgeband materials, like resinated paper, veneer, and - with a respective primer precoating - also for plastic edgebands. The highest heat and moisture resistance levels can only be achieved by using hot melt adhesives based on polyurethane. Jowatherm-Reaktant® 607.30 is a fast-setting PUR edgebanding hot melt with high initial strength, a good elasticity at low temperatures, and also a good solvent resistance. The chemical crosslinking takes place within a few days, depending on the moisture content of the materials and the humidity in the ambient air.
Jowat has developed a new unfilled PUR hot melt adhesive for highest requirements in edgebanding. Formulated with modern raw materials from the polyurethane chemistry and based on Jowat’s decades-long experience with edgebanding adhesives, Jowatherm-Reaktant® 608.00 fulfils the high expectations on edgebanding in modern furniture manufacturing.