By answering our five questions you’ll know whether or not pressure-sensitive adhesives will be the right choice for your application.

By answering our five questions you’ll know whether or not pressure-sensitive adhesives will be the right choice for your application.

Bonding Blog Series: Post 4

Five questions: are PSAs the right choice?

Readers having followed our series of blog posts in recent weeks have learned that Schreiner ProTech concentrates on pressure-sensitive adhesives (PSA). The reason is that they offer clear processing advantages over liquid adhesive systems. So, could this be the right solution for your application as well? You’ll know after answering the following questions!

1. Can or should I use adhesive bonding at all?

  • How important are design aspects like a smooth surface without drill holes?
  • Are the components I have to apply small?
  • Do I have delicate geometries, possibly even a smooth surface without drill holes but with small piercings?
  • How clean does my process have to be—in other words, would strings or the penetration of glue in small drill holes pose a problem?

If you can answer either of the first two questions with YES, then adhesive bonding might be the solution! If YES is the answer to the last two questions as well, then you should definitely take a closer look at pressure-sensitive adhesive solutions!

2. Do I need to combine different materials with each other, such as metal and plastic, say for design reasons?

That’s an aspect to consider because the expansion of materials varies, which often makes mechanical fastening difficult. Conventional adhesive systems also frequently reach their limits here, so why not take a look at pressure-sensitive adhesives!

3. Would I like to integrate additional functions in my component bonding?

Maybe you need sealing, damping or a heat barrier for your component as well. Or there’s something you’d like to connect and, at the same time, integrate dust protection in a component hole. Compensation for heights, tolerances and gap dimensions are further options. For any of these requirements, the application of pressure-sensitive adhesives may be a viable alternative for you.

4. What does the joining process I’ve been using look like and how important are cycle times for me?

How clean is the process or how clean does it have to be? Would it be okay for me to have metal swarf or strings of glue cling to my product? Do I already have gluing robotic capacities that have to be utilized? The lower additional investment incurred for fully or partially automatic processing may speak in favor of pressure-sensitive adhesives. And if cycle times are important, mechanical or PSA bonding is usually the only viable option to begin with due to the longer curing times of liquid adhesives.

5. What environmental protection and safety precautions are available?

Liquid adhesive systems require high environmental protection and safety precautions due to their vapors. In addition, subsequent outgassing, for instance in automobiles, might be an issue. The utilization of PSA systems might make sense in this respect as well.

Questions upon questions, and now the ball is in your court! Having read this entire post, you may have found pressure-sensitive adhesives to be a suitable option for you. Please feel free to contact us with questions regarding your specific application: info@schreiner-protech.com

Schreiner ProTech is addressing all aspects relevant to adhesive bonding as a joining solution. The blog post that kicked off the series was focused on joining solutions in general, followed by basic questions centered on adhesive bonding: when should adhesive bonding be used and what are the differences between liquid and pressure-sensitive adhesive bonding? The next post will be dealing with additional functions that can be performed by self-adhesive die-cut parts. Finally, we’ll show you specific application examples from various industries.

You can find an overview of all blog posts from our adhesive bonding series here: //www.schreinergroup-blog.com/en/category/subjects/productstechnologies/bonding-en/

Find more information on Schreiner Protech on schreiner-protech.com

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