polyacrylic resin
Acrylic resin adhesive is a type of acrylic adhesive. It is made of acrylic resin and needs to be cured in the absence of air. It is often used for sealing, screw connection and fastening of bonded rolling bearings. The disadvantage is that the heat resistance is not high enough, the curing time is long, and it is not suitable for sealing with large gaps. Mainly used in the production of pressure-sensitive adhesives, also in the textile and construction fields.

hot melt adhesive
Hot melt adhesive is the abbreviation of hot melt adhesive. It does not use any solvents in its production and application. It is non-toxic, tasteless and does not pollute the environment. It is known as "green adhesive" and is especially suitable for use on continuous production lines. Hot melt adhesive is a polymer adhesive that is coated in a hot melt state and hardened by cooling to achieve bonding. According to the national standard, the definition of hot melt adhesive is "a thermoplastic adhesive that is applied in a molten state and then cooled to a solid state to complete the bonding". Solvent-free, 100% solid content, mainly composed of thermoplastic polymers.Hot melt adhesive has been used in packaging since the late 1950s. Due to its unique advantages, it has incomparable advantages over other adhesive varieties and has become one of the fastest growing varieties of adhesives. According to different raw materials, it can be divided into EVA hot melt adhesive, polyamide hot melt adhesive, polyester hot melt adhesive, polyolefin hot melt adhesive, etc. At present, EVA hot melt adhesive is mainly produced and used in China. The main raw materials of polyolefin series adhesives are ethylene series, SBS, and SIS copolymers.

Epoxy resin adhesive
Epoxy resin adhesives (referred to as epoxy adhesives or epoxy glue) have only been around for more than 50 years since they appeared around 1950.
However, with the successive proposals of various adhesive theories in the mid-20th century, as well as the in-depth progress of basic research work such as adhesive chemistry, adhesive rheology, and adhesive failure mechanisms, adhesive properties, varieties, and applications have developed by leaps and bounds.
Epoxy resin and its curing system have also become an important type of adhesive with excellent performance, many varieties and wide adaptability due to its unique and excellent properties and the continuous emergence of new epoxy resins, new curing agents and additives.
It can bond metals to most non-metallic materials and is widely used in construction, automobiles, electronics, electrical appliances and daily household items.

Uric acid resin
Urea-formaldehyde resin is also called urea-formaldehyde resin. The English abbreviation UF is the polycondensation of urea and formaldehyde under the action of a catalyst (alkaline or acidic catalyst) to form an initial urea-formaldehyde resin, and then under the action of a curing agent or additive, it forms an insoluble and infusible final thermosetting resin.
Cured urea-formaldehyde resin is lighter in color than phenolic resin, translucent, resistant to weak acids and weak alkali, has good insulation properties, excellent wear resistance, and is cheap. It is the most commonly used type of adhesive, especially in the wood processing industry. In the manufacturing of various artificial panels, urea-formaldehyde resin and its modified products account for about 90% of the total adhesive usage.
It is mainly used in the wood processing industry, but the amount of formaldehyde released after use is higher than international standards.