Removable adhesives are suitable for temporary applications such as exhibitions, events, and window displays, while permanent adhesives are suitable for permanent signage, vehicle branding, and wall decoration. The right choice depends on the duration of use, the substrate, and the desired removability. Those who weigh both factors carefully will avoid adhesive removal during use and residue when removing the adhesive. The following questions will guide you through this decision step by step.
According to which criteria should one choose removable or permanent film?
The choice is based on four criteria: planned duration of use, type of substrate, environmental conditions, and requirements for subsequent removal. The shorter the use and the more sensitive the surface, the more likely a removable adhesive is suitable. For long-lasting durability and heavily used areas, a permanent adhesive is advisable.
Ask yourself these questions before choosing the material:
- How long should the graphics stay up? A few weeks speak for removable, several years for permanent.
- How sensitive is the subsurface? Fresh paint, wallpaper or plaster do not tolerate aggressive adhesives.
- Which load does one affect? Temperature fluctuations, humidity, cleaning, and mechanical stress increase the requirements.
- Who removes the foil later? If the end customer has to be able to remove them themselves, a more secure choice is a permanently removable adhesive.
At self-adhesive films For the interior, it is also worth taking a look at the layout: large-scale motifs affect adhesion differently than fine fonts with many edges.
What distinguishes removable and permanent adhesives in comparison?
The main difference lies in the adhesive force and its behavior. Removable adhesives adhere moderately and remain controllable when removed. Permanent adhesives build up a high adhesive force that increases over hours to days, and can only be removed with effort or heat.
Removable adhesive
The liability is deliberately limited. You can remove the film without damaging the underlying surface and even reposition it on many systems. This makes removable films the first choice for promotional graphics, exhibitions and changing motifs. The downside: With prolonged use, cold temperatures or rough surfaces, the adhesion can decrease.
Permanent adhesive
The adhesive is firmly anchored in the substrate and remains stable even under temperature changes and moisture. This leaves little room for corrections after pressing down. Removal often results in adhesive residue or damage to the surface, especially if the film has been on the substrate for a long time.
Which adhesive reliably adheres to which surfaces?
Smooth, clean and durable substrates such as glass, metal, painted plastic and hardboard provide good adhesion for both types of adhesive. Porous, rough or powdery surfaces such as plaster, wood fiber or concrete require careful preparation and often a specially matched adhesive.
- Glass and mirrors: Ideal for both variants; removable for shop windows; permanently labeled for long-term use.
- Painted walls: The quality of the paint determines this. Freshly painted surfaces should be completely cured so that the film does not absorb any paint when being removed.
- Wallpaper and plaster: Removable systems are usually the safer choice, but the adhesion remains dependent on the substrate.
- Structured areas: The adhesive must sufficiently wet the recesses; otherwise there will be no contact surface.
We describe in more detail how to handle rough surfaces in the article on Underground. For the wall area, you will find an overview of which Surfaces to apply for self-adhesive wallpaper appropriate.
Why does a removable film sometimes leave residues?
Residual adhesive is formed when the adhesive’s adhesion to the substrate becomes greater than its bond to the film. Typical causes are prolonged periods of standing, heat or sunlight exposure, porous surfaces, and an unsuitable substrate. This results in adhesive remaining on the film even though the film is considered removable.
Several factors work together:
- Heat: It makes the adhesive softer; it flows more deeply into the substrate.
- Service life: Removable adhesives also build additional adhesion over months.
- Underground: Poor-adhering paints or porous surfaces are more likely to break than for the adhesive to release cleanly.
- Withdrawal technique: A flatter, slower withdrawal angle protects the adhesive layer and surface. A faster, steeper pull increases the risk of residue.
How to use the foils Remove without residue We have described this in a separate article in a practical way.
How does the adhesive layer affect printing and further processing?
The adhesive layer significantly affects the plane of the design, cutting behavior, and processing; however, it hardly affects the pressure itself. It determines how the film can be transported in the printer, how cleanly it can be cut and embossed, and how it behaves during laminating or applying.
- Cutting and cutting: A too-soft adhesive can stick to the blade and smear the cutting edges. A properly matched system provides clean contours.
- Entgittern: For small details, the adhesive must reliably hold the graphic on the carrier paper without leaving any residue in the space between the layers.
- Lamination: The interaction between the printing ink, the laminate and the adhesive should be checked to ensure that no bubbles form or the edges do not detach.
- Application: Air channels in the adhesive facilitate the non-bubble bonding of large surfaces. The same applies to self-adhesive films and self-adhesive wallpaper equally.
Therefore, always test new material combinations on a sample before starting mass production.
When is an individually developed adhesive worth it?
An individually developed adhesive is worth considering when standard systems do not reliably cover an application, for example in the case of unusual substrates, extreme conditions, or special requirements regarding adhesion and removal. An adaptation can also be worthwhile for larger quantities with clearly defined properties.
Typical occasions are:
- Substrates on which conventional adhesives do not adhere or cause damage
- Combinations of removable adhesion and high initial adhesion
- Special temperature, humidity, or cleaning conditions
- Recurring complaints despite careful processing
Before investing in a development, check whether an existing material with different adhesive equipment can solve the task. If that does not work, a customized system saves time and hassle in the long run.
We at com2C support you in choosing the appropriate adhesive property
As a manufacturer, we develop and produce digital printing media ourselves and know the practicalities of your production. Whether removable or permanent: We help you find the adhesive properties that suit your substrate, printing process, and application. Our wallpapers are available in PVC-free, self-adhesive, and non-self-adhesive versions.
- Wide range of products: From foils to banners to textiles, compatible with solvent, latex, UV and water-based inks.
- Own laboratory: We test and coat materials ourselves and specifically adjust the properties.
- Individual development: If standard materials are not enough, we will develop a solution for your requirements together with you.
- Personal advice: We work with you to clarify the underground installation, processing, and lifespan, even after the purchase.
- PVC-free materials: With the GoGreener line, we offer a selection of PVC-free media without compromising on processing and print quality.
For wall applications, you can find our self-adhesive PVC-free wallpaper and the Non-self-adhesive variant in our range of products com2C. If you would like to discuss your requirements, please arrange an appointment. Consultation.
