This is the structure of multi-layered compounds. They offer several functions within one component.

This is the structure of multi-layered compounds. They offer several functions within one component.

Bonding Blog Series: Post 6

Adhesive die-cut parts: what makes bonding so special?

Self-adhesive die-cut parts from Schreiner ProTech are the solution to many challenges in the field of joining and fastening. Pressure-sensitive adhesives clearly simplify and accelerate manufacturing and application processes and offer additional benefits. In this post, we’re going to look at what makes our bonding solutions so special.  

Generally speaking, a distinction is made between simple and complex composites which may either be provided with all-over adhesive coating or just a partial coat of adhesive. Simple composites are recommended whenever the aspect of adhesive bonding is the primary consideration. In this case, double-sided self-adhesive die-cut parts are typically used. They may either consist of adhesive tape coated on both sides or of transfer adhesives.

Several functions combined in a single component
“Complex, in some cases multi-layer composites, allow me to address my special needs and the specific application, and to combine several functions in a single component, such as bonding, height compensation and cushioning or dust protection,” explains Product Manager Annette Barth from Schreiner ProTech.

Special options for component geometries
In terms of component geometries, there is a wide range of options available: from small (approx. 4x4mm) to large, with thin frames (0.7mm or wider), complex geometries or even various interior cutouts (from 1x1mm to 10x10cm) which can, for instance in multi-layered composites, be backed with a fine mesh fabric, allowing them to additionally serve as dust protection.

Optimized and accelerated application
The bonding solutions from Schreiner ProTech make it possible to optimize and accelerate application processes. As pressure-sensitive adhesives require no curing and drying times, they can be subjected to loads directly after application, depending on the adhesive system used. In addition, grip tabs, which are removed manually or even automatically, clearly simplify the application process.

Automated application and clean processing
Here’s another aspect that clearly facilitates automated application. The adhesive die-cut parts are delivered on rolls and come with a non-adhesive masking liner, optionally available with an additional grip tab. The resulting advantage is an extremely clean process. The components are not contaminated by strings of adhesive which, in case of doubt, would entail a higher cleaning effort or make them completely unusable.

A specific example: assembly aid for welding and soldering processes
Partially adhesive composites, created either by partial adhesive coating or coverage, or only consisting of individual adhesive dots, are used whenever all-over bonding is not possible or desired, for instance in applications serving as assembly aids before a welding or soldering process. In this case, for instance, the components are pre-fixed in place by means of individual adhesive dots. This spot-gluing ensures that during the subsequent welding or soldering process a sufficient amount of soldering compound can enter between the components in order to effectively and permanently join them. The arrangement of the adhesive dots on the liner is precisely adapted to the component geometry to ensure an optimum application process, and the adhesive dots are easily and quickly picked up together with the component.

So, there are many good reasons that speak for our bonding solutions, aren’t there? If you have any questions about our self-adhesive die-cut parts and your specific application, please let us know: annette.barth@schreiner-protech.com

Schreiner ProTech is addressing all aspects relevant to adhesive bonding as a joining solution, focused on the following questions What performance does an adhesive have to deliver and how does adhesive bonding work?. When should adhesive bonding be used and what are the differences between liquid and pressure-sensitive adhesive bonding? Which additional functions can be performed by self-adhesive die-cut parts? Finally, the application of self-adhesive die-cut parts and miniature dimensions will be covered.

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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This post is also available in: German