Can PUR glue be suitable for the bonding of MDF? No, PUR (Polyurethane Reactive), the full name is moisture curing reactive polyurethane hot melt adhesive. The mechanism of PUR hot melt adhesive is that the polyurethane prepolymer reacts with moisture in the air, solidifies and crosslinks to form a stable chemical structure. Compared with EVA
Urea-formaldehyde resin is mainly used to prepare amino alkyd baking varnish with alkyd resin to improve the hardness and dryness of the paint film. It can be combined with non-drying alkyd resin to make acid-cured amino paint for wood furniture finishing. However, the weather resistance, water resistance and gloss retention are slightly worse. It can
What is plywood? Plywood is a multi-layer board-shaped material formed by peeling wood sections into veneers or sliced into veneers, and then using adhesives to glue adjacent veneers whose fiber directions are perpendicular to each other. Blockboard is the second largest sub-variety of plywood subdivisions. It is made of high-quality natural wood after heat treatment,
Hot melt adhesives are relatively common in daily life, and you need to pay attention to mastering the method when using them. So, what can be used to remove hot melt adhesive? What are the precautions for hot melt adhesive? Let's find out together. How can hot melt adhesives be removed? 1. You can use
It is generally believed that the cabinets made by woodworking are space-saving and durable, but the disadvantage is that they are poor in aesthetics. Especially if the edge banding is not handled well, it will not only be ugly but also affect normal use. If you plan to let the woodworker hit the cabinet, then
Hot-melt adhesive is a big category, PUR hot-melt adhesive is one of them, most hot-melt adhesives are heat-operated, can be reheated after bonding, and are reversible, while winlong-PUR hot-melt adhesive is wet Gas-reactive hot-melt adhesive, heated operation, will react with the moisture in the air after bonding, and it will be irreversible after the reaction
Two-component polyurethane adhesives are usually composed of an isocyanate component (curing agent) containing NCO and a hydroxyl component (main agent) containing hydroxyl groups. When using, mix the two liquid components according to a certain ratio, use NCO and OH to react to form solid polyurethane, and then use the polar group of polyurethane to form
Epoxy glue is an important thermosetting resin glue. Especially because of its excellent physical and mechanical properties, electrical insulation properties, chemical corrosion resistance, heat resistance and bonding properties, the epoxy resin adhesive prepared with it is known as "multi-purpose adhesive" and can be widely used in chemical industry, Industrial fields such as light industry, water
There are many binding methods available today, such as PUR (PolvurethaneReactive-polyurethane reaction), EVA (ethylenevinylacetate-ethylene acetate) hot sol, PVA (ethylene polyacetate) cooling emulsion type of different adhesive methods. In addition, there are various lock-stitch binding and so on. PUR appeared around 1989 and was first tested and applied on a manual binding system in North America.
When it comes to EVA, everyone knows what EVA is, but do you know what EVA is used for? Everyone may say that EVA is not used for packaging lining. If you think so, then you are really wrong. EVA material is a common name we define. Its alias is ethylene-vinyl acetate copolymer, and its
