Transparent PSA Adhesive Block is a hot-melt pressure-sensitive adhesive material based on high molecular polymers, with excellent transparency and instant bonding properties. The adhesive block is in liquid form after heating and melting, and forms a colorless and transparent solid after cooling and solidification. Unlike traditional solvent-based or water-based adhesives, PSA adhesive blocks can achieve rapid bonding without water evaporation or chemical reaction, and can be firmly attached to a variety of surfaces with only slight pressure. The adhesive block adopts a highly transparent formula, and is clear and transparent after solidification. It will not block the text or pattern on the envelope bag, keeping the overall packaging neat and beautiful. It is an ideal green bonding solution in the modern packaging industry.

1. Standard block design:

Transparent PSA Adhesive Block adopts a standard block design, which is easy to store and use, and is suitable for various hot melt glue guns, automatic glue coating equipment and semi-automatic packaging systems. It is simple to operate, reduces the manual threshold, is suitable for small and medium-sized enterprises and automated production lines, and improves production flexibility and efficiency. The standardized size design helps to achieve accurate feeding and continuous glue discharge, reduce waste and downtime, and facilitate inventory management and logistics transportation.

2. Fast bonding:

Transparent PSA Adhesive Block has excellent initial bonding force, and can quickly produce a strong bonding effect after contacting the adherend, which is suitable for high-speed packaging processes and manual operation scenarios. There is no need to wait for curing time, and it can be applied and pasted immediately, which improves packaging efficiency, especially suitable for large-scale operations during express delivery peak periods. Its rapid wetting characteristics allow the colloid to quickly penetrate into the micropores on the surface of the material, achieving an instant anchoring effect, thereby accelerating the bonding establishment speed, shortening the process waiting time, and improving the overall operation fluency.

3. High peel strength:

Transparent PSA Adhesive Block has excellent peel strength performance. It can maintain a stable bonding state even when pulled by external force, preventing the envelope bag from opening accidentally. It shows good adhesion on a variety of materials such as paper, film, and lamination, ensuring the sealing integrity during transportation. By introducing high-polarity tackifying resin and enhanced polymer network structure, the interfacial adhesion and tear resistance are significantly improved, so that the adhesive layer can still maintain a complete connection under stress.

4. Strong cohesion:

The internal structure of the colloid is tight and has good cohesion. It is not easy to delaminate or fall off after bonding. Even if it is stored for a long time or transported multiple times, it can maintain a stable connection effect to ensure the safe delivery of the contents of the letter or package. The cross-linking modification technology is used to enhance the interaction between molecular chains, so that it can still maintain its integrity when subjected to external stress, effectively avoiding the degumming problem caused by colloid breakage.

5. Good low temperature resistance:

Transparent PSA Adhesive Block can still maintain flexibility and viscosity in low temperature environment, and will not become brittle and ineffective due to cold weather. It is suitable for use scenarios under low temperature conditions such as winter logistics and distribution in northern regions, ensuring stable operation throughout the year and meeting diverse climate needs. By adding special elastomers and low-temperature plasticizer components, the glass transition behavior of the colloid at low temperature is improved, so that it can still maintain good elasticity and adhesion below -20°C.

6. High temperature resistance and stability:

Even in high temperature storage or sunlight exposure, the block can maintain good structural stability without softening or sagging. This feature makes it suitable for logistics and transportation systems around the world and adapts to storage conditions in different seasons and regions. The use of a composite system of heat stabilizers and heat-resistant resins can effectively inhibit the aging and deformation of the colloid at high temperatures, extend the service life, and ensure the reliability of bonding at extreme temperatures.

7. Strong adaptability to multiple materials: Transparent PSA Adhesive Block can effectively bond to a variety of common packaging materials such as OPP, PE, envelope bags, express bags, etc., improving the versatility and market adaptability of the product. Regardless of whether the surface is smooth or rough, it can achieve uniform coating and stable bonding, reducing the process difficulties caused by material differences. By regulating the surface tension and wettability, the colloid can form a good contact angle on substrates of different polarity, enhancing the bonding strength and durability of the adhesion interface.

1. Envelope bag sealing

Transparent PSA Adhesive Block is specially designed for envelope bag sealing and is suitable for the closure and bonding of various paper and laminated envelopes. Its transparent characteristics do not affect the address information on the envelope and are widely used in the packaging of important letters such as bank bills, corporate documents, and express receipts to enhance security and professionalism.

2. Express bag reinforcement

Transparent PSA Adhesive Block can be used for secondary bonding of the opening of express bags to enhance the sealing strength and prevent cracking or falling of items during transportation. The transparent adhesive block does not damage the original appearance of the bag and is suitable for scenes in e-commerce, logistics and other industries that require both beauty and functionality.

3. File bag pasting

Transparent PSA Adhesive Block is suitable for sealing and fixing office file bags, archive bags, information bags and other scenes, providing fast and reliable bonding support. The transparent design helps to identify the type of files in the bag while avoiding residual traces and improving sorting and filing efficiency.

4. Gift card set

Transparent PSA Adhesive Block is widely used for packaging and pasting gift cards, coupons, commemorative cards and other card-like items. It can protect the cards from damage without affecting the display of the front pattern. It is suitable for the packaging needs of customized gift cards in shopping malls, banks, telecommunications and other industries.

5. Postcard binding

Transparent PSA Adhesive Block can be used for temporary pasting or binding between postcards and accessories. It is easy to disassemble and does not leave residual glue. It is suitable for scenes such as exhibitions, event promotions, and holiday cards. The transparent feature makes it more decorative and practical in artistic creation and printed products.

6. Package label fixation

Transparent PSA Adhesive Block is suitable for the pasting and fixation of logistics information labels and barcode stickers. It is not easy to fall off even in a vibrating or humid environment, ensuring accurate information transmission. The transparent adhesive block does not block key information, which is convenient for scanning and identification, and improves the efficiency of supply chain management.

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.