PSA Pressure Sensitive Adhesive is a material that can achieve bonding function under slight pressure. Unlike glues that require heat or solvent activation, PSA does not require additional activation conditions and can quickly bond two surfaces by applying light pressure. This adhesive is usually composed of a polymer substrate and has good cohesion and adhesion, and can form a durable and stable connection on a variety of substrates. Its bonding force comes from the van der Waals force and physical entanglement between molecules, rather than chemical reactions.

1. Quick initial adhesion

This PSA hot melt adhesive block has excellent initial bonding performance. After contacting the adherend, it can quickly generate strong bonding force, ensure efficient and smooth sealing process, improve packaging efficiency and reduce manual intervention. Its polymer structure design optimizes the bonding response speed, and can achieve instant bonding effect at room temperature or low temperature environment without waiting for curing time. This feature is particularly suitable for automated assembly line operations, which can effectively improve production rhythm, reduce packaging error rate, and enhance the work experience of operators.

2. High peel strength

PSA Pressure Sensitive Adhesive has excellent peel strength performance. It can maintain stable bonding effect even when pulled by external force, avoid sealing off, provide reliable protection for package transportation, and enhance user confidence. The synergistic effect of its internal cross-linked structure and tackifying resin improves the cohesive strength of the bonding interface, thereby showing excellent adhesion on different material surfaces. Whether on paper, plastic or composite materials, it can form a firm connection to prevent cracking caused by handling and stacking, greatly improving the safety of the logistics process.

3. High temperature resistance and stability

It can still maintain good bonding performance in high temperature environment, without softening, sagging and other problems, ensuring that the express bag is still firmly sealed during high temperature storage or transportation to prevent leakage or damage of the contents. This product adopts special heat-resistant modification technology to enable the colloid to maintain good structural integrity and bonding durability at extreme temperatures. Even in high-temperature warehouses in summer or in transportation environments exposed to the sun, it can ensure that the seal is not loose or deformed, which is suitable for logistics needs in different climate regions around the world.

4. Good low temperature resistance

Even under low temperature conditions, such as winter logistics warehouses or transportation in cold areas, the rubber block still maintains good flexibility and viscosity, is not easy to become brittle or fail, and ensures uninterrupted and stable use throughout the year. Low-temperature plasticizers and elastic components are introduced into its formula, so that the rubber block can still maintain a certain elasticity and adhesion ability below -20°C, avoiding degumming caused by low temperature. This feature is particularly important for packaging applications in northern regions or cold chain transportation, which helps to ensure product quality and delivery safety.

5. Adaptable to a variety of materials

It can effectively bond a variety of common express packaging materials, such as OPP bags, envelope bags, express bags and PE films, etc., to meet the diversified packaging needs and improve the versatility and market adaptability of the product. By adjusting the proportion of polar groups in the formula, the rubber block enhances the wettability and adhesion of non-polar materials such as polyethylene and polypropylene, thereby achieving a wider compatibility. Whether it is a smooth surface or a rough substrate, it can achieve uniform coating and stable bonding, reducing the process difficulties caused by material differences.

6. Convenient operation

The block design is easy to store and use, and hot melt coating can be completed without complex equipment, simplifying the production process and lowering the operating threshold. It is suitable for various small and medium-sized production enterprises and automated production lines. Its standardized appearance and size can be adapted to a variety of heating systems, which is convenient for quantitative delivery and continuous feeding. In addition, the block shape reduces dust pollution and waste risks, improves the cleanliness of on-site management, and is conducive to improving overall production efficiency and environmental friendliness.

7. Safety and environmental protection

PSA Pressure Sensitive Adhesive does not contain solvents, does not release harmful substances, meets environmental protection standards, is friendly to the human body and the environment, and has good thermal stability. It is not easy to decompose or produce odor during use, ensuring operational safety. The source of raw materials is strictly controlled during the production process, and it has passed multiple international certifications such as SGS and REACH to ensure that it meets the safety requirements of food-grade contact materials. It is suitable for corporate customers who focus on sustainable development and help build a green supply chain system.

8. Long-lasting

After bonding, it maintains stable performance for a long time, is not easy to age or fall off, ensures the sealing integrity of express items throughout the transportation cycle, and improves customer satisfaction and brand trust. Its molecular chain structure has excellent antioxidant and UV resistance, and can maintain bonding strength even after long-term exposure to air. In addition, the product also has a certain moisture-proof performance, which can resist the impact of humidity changes and is widely used in complex environments such as long-distance transportation and cross-border logistics.

1. Express bag sealing

PSA Pressure Sensitive Adhesive is specially designed for express bags and is widely used in carton and plastic bag sealing operations in e-commerce, logistics and other industries. Its instant bonding characteristics can achieve seamless docking on high-speed packaging lines, ensuring that the package will not crack or leak during transportation. Due to its strong initial adhesion and easy operation, it has been adopted as a standard sealing material by many large e-commerce platforms and third-party logistics companies. Especially during the promotion period, it can greatly improve packaging efficiency, shorten order processing time, and help companies maintain their operating rhythm during peak periods.

2. Package reinforcement

When performing secondary sealing or corner reinforcement on the outside of the package, PSA adhesive blocks can provide an additional layer of protection to prevent opening problems caused by collisions during transportation and improve overall transportation safety. This application is particularly suitable for the transportation protection of fragile items, valuables or high-value goods. By strengthening the bonding locally, it can effectively prevent the bag from tearing and expanding, and improve the overall strength of the packaging structure. In addition, its transparent appearance does not affect the reading of label information, and is also convenient for subsequent unpacking and inspection, improving the operational convenience of the logistics link.

3. Logistics label fixation

It can be used to fix logistics information labels, barcode stickers, etc., which are not easy to fall off even in vibration or humid environments, ensuring accurate information transmission and avoiding the risk of misdelivery or loss. Compared with traditional double-sided adhesives or liquid glues, PSA adhesive blocks are more stable under various transportation conditions and can maintain bonding performance in harsh environments such as high and low temperature cycles and rain soaking. This is crucial for modern logistics systems that require frequent scanning and tracking, and helps to improve the level of information management of the entire supply chain.

4. Multi-layer bag bonding

PSA Pressure Sensitive Adhesive is suitable for internal bonding of multi-layer express bags or composite packaging bags to help form an overall structure, improve the bag's load-bearing capacity and tear resistance, and extend its service life. This application scenario is common in the transportation of heavy parcels, industrial raw materials, agricultural materials, etc., requiring packaging to have higher durability and sealing. PSA adhesive blocks can not only form a tight bond between multi-layer structures, but also play a role in buffering and shock absorption, thereby comprehensively improving the functionality and economy of packaging bags.

5. Handmade DIY packaging

Due to its easy operation, it is also suitable for personal use scenarios such as handmade packaging and gift box closure. High-quality bonding can be easily completed without professional tools. Home users, WeChat sellers, handicraft enthusiasts, etc. can all use this product conveniently for personalized packaging. Just put the glue block into the hot melt gun, heat it and melt it, and then apply it. After cooling, it will be immediately fixed without leaving any residual glue, which is clean and beautiful. This flexible application method has expanded the consumer group of the product and increased its competitiveness in the retail market.

6. Automated production line matching

PSA Pressure Sensitive Adhesive is suitable for various automatic carton sealing machines, labeling machines and other equipment. As the core bonding material, it helps enterprises achieve efficient, intelligent and continuous production processes and improve overall operational efficiency. The modern packaging industry is moving towards unmanned and intelligent development, and PSA glue blocks have become an important part of the automation system due to their good consistency, stable feeding and strong compatibility. It can not only seamlessly connect with existing equipment, but also meet different bonding requirements through parameter adjustment, saving labor costs for enterprises and improving capacity utilization.

At our factory, every shipment reflects the precision, professionalism, and dedication we bring to our production process. With a state-of-the-art facility and a highly skilled team, we ensure that each order is meticulously inspected and carefully packed to meet international quality standards.

With advanced testing equipment and highly trained personnel, we rigorously examine materials and products for durability, performance, and compliance with industry standards. Our commitment to precision and quality control is evident in every step of our testing process, from material selection to final inspection. 

Our factory boasts a highly efficient and modern production environment dedicated to manufacturing top-quality glue sticks and granules. Equipped with advanced machinery and operated by experienced technicians, we ensure that every step of the production process is meticulously controlled to meet international standards. 

The environment-friendly hot melt adhesives are used in various automatic production lines, such as carton sealing, cigarette stick bonding, color box packaging, wood edge sealing, book binding, print lamination, the air filter, the shoe industry and sanitary products. 

Whether through instant messaging platforms or face-to-face interactions at international trade shows, our team is dedicated to addressing all client inquiries promptly and accurately. Our participation in global exhibitions not only allows us to showcase our high-quality glue sticks and granules but also provides opportunities to connect with customers directly, understanding their needs and offering tailored solutions.