September 25, 2025
What Are Copolyamide Adhesives?
Copolyamide adhesives are a type of thermoplastic hot melt that is composed of multiple polyamide molecules. Their formulation can be modified to achieve different performance characteristics, including properties like their temperature resistance, bond strength, and toughness. In general, polyamide glues are best known for their resistance to heat and chemicals and are very durable when exposed to these elements. They may take various forms, including pellets, powders, nets, and webs.
Other common properties of copolyamide adhesive glues include:
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Excellent adhesion to various substrates
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Moisture resistance
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Plasticizer migration resistance
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Stress and impact resistance
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Good flexibility
Common Applications
Copolyamide hot melt adhesives can be used in a wide variety of applications. They are especially helpful in environments that are exposed to high heat and chemicals, as they have better resistance to these elements than other adhesives.
Some common applications for copolyamide adhesives include use with:
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Textile interlining
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Upholstery and furniture assembly
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Automotive filters
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Automotive interiors
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Footwear
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Electronics
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General product assembly
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More
How to Determine Which Copolyamide Adhesive to Use
While copolyamide adhesive glues generally have the same basic properties, every product is unique. When it comes time to pick a copolyamide adhesive for your application, there are several factors you should consider, including:
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Bond performance needs
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Substrates
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Adhesive properties
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Environmental exposure
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Production environment and process
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Brands
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Budget
These factors can help you narrow down your options in a wide market. You should consult the product's technical datasheet before making a final decision and always test the product first.
Copolyamide Adhesive Brands
Not only do formulations vary from product to product, but also some brands prioritize certain properties over others. To help you determine which copolyamide-based adhesive to use, our team is sharing a little insight into some of the top brands for copolyamide adhesives in the industry.
Bostik
Bostik is a leading provider of various adhesive solutions, including several hot melt formulations. In particular, they carry a diverse line of copolyester-based hot melt adhesives that come in both pellets and sticks. One thing that makes Bostik's copolyamides unique is that they are 60% to 80% bio-based adhesives, so they are a more sustainable solution than many other similar products.
These products are high-performance thermoplastics that are great for a wide range of uses, including automotive, woodworking, and textile applications in different volumes. The PA 5220 copolyamide hot melt, for example, is best for precision flow textile applications. On the other hand, Bostik PA 5250 is a high-output option with a very high melt flow rate for high-speed production lines.
EMS-Griltech
EMS-Griltech is a part of the EMS group, a Swiss company that focuses on high-performance polymers and specialty chemicals. EMS-Griltech includes the Griltex® hot melt adhesive line of copolyamide and copolyester adhesives. These adhesives are available in powder form with different viscosities and melt temperatures. Griltex 6E, for example, is a high-viscosity option at 800,000 cps at 320°F, while Griltex D 1533E is a low-viscosity option at 30,000 cps at 374°F. One downfall to these adhesives is that they can be more expensive than Bostik options and sometimes have a longer lead time.
Cattie Adhesives
Another adhesive manufacturer that carries copolyamide glues is Cattie Adhesives. These products are designed for various applications, including wire coating, automotive filters, and flame bonding of fabrics and foams. The copolyamide product line includes varying viscosities, set times, and strengths to meet the needs of different types of applications.
Which One Is Right for You?
Not sure which copolyamide adhesive is best for your application? We want to help. We understand that there are several options on the market, but with over 50 years in the adhesives industry, we can help direct you to the right choice for your needs. Speak with an adhesive expert.
Hotmelt.com is not affiliated with EMS-Griltech. EMS-Griltech is a part of the EMS Group.
