Today’s building and construction industry demands piping systems that are robust, durable, and highly efficient. This demand is met by multilayer pipes (MLP)—advanced structures, including 3-layer PEX+ADHESIVE+EVOH and 5-layer PEX+ ADHESIVE+Al+ADHESIVE+PEX, that expertly combine non-polar polyolefins (PE, PEX, PERT, PP) with polar functional layers like Aluminum (Al), steel, or EVOH barrier resins.
These heterogeneous structures require a specialized tie-layer adhesive to ensure a strong, long-lasting bond between the different materials.
Aria Polymer provides a dedicated portfolio of Maleic Anhydride (MAH) Grafted Polymer Adhesives designed to function as the critical tie-layer resin in the co-extrusion process. Our engineered resins, ensure molecular-level compatibilization to deliver Exceptional Peel Strength Guaranteeing permanent interfacial adhesion that resists layer separation under continuous pressure, fluid dynamics, and challenging thermal cycling.
Aria Adhesive 4107T242, 4107T320: Tie layer adhesive for PEX and PERT pipes
Aria Adhesive 4407T134: Tie layer adhesive for PP pipes
Aria Adhesive 4100T276: Tie layer adhesive for EVOH pipes
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Aria Adhesive 4100T276 is a high-performance tie layer adhesive specifically engineered to ensure the enduring integrity of premium PEX/PE-RT+ADHESIVE+EVOH barrier pipes. This specialized polymer adhesive is manufactured as a maleic anhydride grafted polyethylene resin, providing the essential chemical platform for bonding dissimilar materials in advanced multilayer pipe structures.
In the construction of multilayer PEX (Cross-linked Polyethylene) and PE-RT (Polyethylene of Raised Temperature) pipes, a critical requirement is to prevent the permeation of oxygen, which is achieved by incorporating a polar EVOH (Ethylene Vinyl Alcohol) barrier layer. The challenge lies in creating a permanent bond between the non-polar polyolefin pipe material (PEX or PE-RT) and the highly polar EVOH layer. Aria Adhesive 4100T276 acts as the crucial compatibilizer and chemical bridge, enabling the co-extrusion process to achieve an impenetrable interface between these layers. The final result is a structurally monolithic multilayer pipe.
Formulated to deliver high peel strength, our advanced tie layer adhesive is paramount to the long-term durability and operational safety of the final pipe system. By establishing a robust and enduring chemical bond, Aria Adhesive 4100T276 effectively mitigates the risk of layer separation, commonly known as delamination, which can compromise the pipe’s function. This superior adhesion is maintained even when the pipe is subjected to the continuously changing temperatures and pressures inherent in demanding applications like radiant floor heating. Ensuring the EVOH oxygen barrier remains perfectly bonded and functional, our adhesive helps to safeguard the entire hydronic system against corrosion, extending the service life of metal components like pumps and boilers.
Aria Adhesive 4107T242 is a premium maleic anhydride grafted polyethylene (MAH-g-PE) resin expertly engineered to serve as the critical tie-layer adhesive in high-performance multilayer PEX (Cross-linked Polyethylene) and PERT (Polyethylene of Raised Temperature Resistance) piping systems. Supplied in pellet form, this specialized adhesive is the definitive solution for achieving a permanent, cohesive bond in systems such as PEX+ADEHSIVE+Al+ADEHSIVE+PEX or PERT+ADEHSIVE+Al+ADEHSIVE+PERT.
This adhesive is the solution for creating a permanent, cohesive structure in multilayer pipes. It effectively bridges the gap between the non-polar PEX or PE inner and outer layers and highly polar metal layers (Aluminum, etc.) within the pipe structure.
By utilizing Aria Adhesive 4107T242, manufacturers ensure the finished multilayer pipe maintains high peel strength and structural integrity. Choosing this specialized grafted polyethylene adhesive enhances the overall performance and longevity of pipes by reinforcing layer adhesion and is specifically designed for applications requiring robust layer bonding.
Aria Adhesive 4407 is a high-performance maleic anhydride grafted polypropylene (MAH-g-PP) resin, specifically engineered to bridge this compatibility gap. This advanced modification introduces functional polar groups onto the non-polar PP backbone, enabling it to act as a powerful compatibilizer and coupling agent. This technology facilitates the creation of a strong interfacial bond, or chemical bridge, between traditionally incompatible materials.
As a result, our adhesive resin delivers high peel strength, a critical property for demanding industrial applications.
Aria Adhesive 4407 is primarily designed as a robust tie layer adhesive for complex multilayered structure pipes. In this role, it excels at compatibilizing polar and non-polar layers. It creates a dependable, high-integrity bond in structures where PP needs to be laminated with polar layers, such as PP with Aluminum (Al) layers in pipe structures.
By enhancing the adhesion between these diverse components, Aria Adhesive 4407 plays an essential role in ensuring the structural integrity and longevity of the final product. Furthermore, products based on MAH-g-PP are increasingly valued as a modern, high-efficiency alternative to older bonding methods, moving the industry toward more sustainable and less environmentally burdensome solutions.
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