In the kitchen and bathroom environments, the high temperature and humidity challenges faced by furniture products are unmatched by ordinary indoor furniture. PUR hot melt adhesives are ideal for such application scenarios because of their excellent weather resistance.The three-dimensional cross-linked structure formed after the PUR glue is completely cured has the characteristics of a thermosetting material, and its softening temperature is much higher than that of EVA hot melt adhesive.At temperatures close to 100℃ or even higher, the PUR adhesive layer can still maintain high mechanical strength and dimensional stability, without significant softening or creep.This feature is particularly important for cabinet door panels close to the stove, oven or exposed to direct sunlight to ensure that the edge banding will not warp or fall off due to high temperature during long-term use.

The high humidity environment is another major test faced by bathroom cabinets and kitchen sink cabinets.The hydrolysis resistance of PUR hot melt adhesives stems from the structural stability of its crosslinking network and the characteristics of the polyurethane material itself.The cured PUR glue has good barrier properties and tolerance to water vapor and liquid water. Even if it is in a high humidity environment for a long time or occasionally comes into contact with liquid water, the interface between the glue layer and the sheet and the edge banding strip can still be firmly combined.In contrast, EVA hot melt adhesives may undergo dimensional changes and strength attenuation during repeated moisture absorption and drying, and the interfacial adhesion gradually decreases, which eventually leads to edge banding failure.For bathroom cabinets installed in the bathroom space, this difference is directly related to the service life and reliability of the product.

The applicability of PUR hot melt adhesive in cabinet and bathroom products is also reflected in its adaptability to a variety of substrates.Kitchen and bathroom furniture often use special surface-treated plates, such as high-gloss veneer panels, PET panels, acrylic panels, etc. These materials have high adhesion requirements for adhesives.The polar groups in the molecular structure of PUR glue can form a strong interaction with the surface of a variety of materials to achieve reliable bonding.At the same time, PUR glue also has a certain tolerance for trace oil stains or mold release agents that may exist on the slotted surface of the sheet, which reduces the requirements for surface treatment.Considering high temperature resistance, high humidity resistance and bonding adaptability, PUR hot melt adhesives provide long-term and reliable edge banding solutions for cabinet and bathroom products to meet the high requirements of furniture durability in these special spaces.