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Frequently Asked Questions about Vinyl and Dextrin Adhesives for the Printing Industry

The printing industry uses various types of adhesive for different processes. Among them, vinyl glues and dextrins are frequently used for their unique properties. Here are some of the most frequently asked questions.

What are the main differences between vinyl adhesives and dextrins?

Vinyl adhesives, based on polyvinyl resins, are known for their strong adhesion and resistance to humidity. They are ideal for applications requiring a durable bond. Dextrins, on the other hand, are starch-based adhesives that offer good initial adhesion and are easily soluble in water, making them useful for temporary applications or where easy removal is required.

Why choose vinyl adhesives for the printing industry?

Vinyl glues are chosen for their versatility and strong adhesion. They are ideal for gluing paper, cardboard and certain plastics, making them ideal for making books, magazines and printed packaging. What’s more, their water resistance makes them ideal for products that may be exposed to moisture.

Are dextrins suitable for all types of paper and printing?

Because of their starch-based composition, dextrins are excellent for paper and cardboard. They are often used in printing processes where temporary adhesion is required, as in the case of postage stamps or envelopes. However, they are not recommended for non-porous substrates or for applications requiring high water resistance.

How does the durability of adhesives affect printed products?

Glue durability is crucial to the longevity of printed products. Vinyl adhesives, with their high resistance and durability, ensure that printed products remain intact for a long time, even under difficult conditions. Dextrins, while offering good adhesion, are better suited to applications where long-term durability is not a major concern.

Are there any environmental considerations to take into account?

The environmental impact of adhesives is an important consideration. Vinyl glues are generally more difficult to dispose of and may contain less environmentally-friendly components. Dextrins, being starch-based, are more environmentally friendly, biodegradable and easier to remove, making them preferable for companies concerned about their ecological impact.

How to choose the right adhesive for a specific printing project?

The choice of adhesive depends on a number of factors, including the type of material to be bonded, the exposure conditions of the finished product, and durability requirements. It is essential to consult an adhesive expert or carry out preliminary tests to determine the best option for a specific project.

Mistakes to Avoid When Buying and Using Vinyl Glues and Dextrins

The use of vinyl adhesives and dextrins is commonplace in many industrial sectors, but there are some key mistakes to be avoided to ensure the effectiveness of these products. Here’s a guide to help you make the right choices when buying and using these types of glue.

1. Ignore Product Specifications

Error: Ignoring the technical specifications of adhesives.
Solution: Read the specifications for each adhesive carefully. Vinyl glues and dextrins have different properties and applications. Choose your adhesive according to the specific use, the material to be bonded and the application environment.

2. Use of unsuitable glue

Error: Using the same glue for different applications.
Solution: Understand that each type of adhesive has been designed for specific applications. For example, vinyl adhesives are ideal for non-porous surfaces requiring strong adhesion, while dextrins are better suited to paper and cardboard in less demanding applications in terms of water resistance.

3. Neglecting the Conditions of Application

Error: Applying adhesive without taking the environment into account.
Solution: The application environment can greatly affect adhesive performance. Take into account temperature, humidity and surface porosity. Make sure conditions are ideal for the specific application of the chosen adhesive.

4. Poor surface preparation

Mistake: Neglecting surface preparation before application.
Solution: A clean, well-prepared surface is essential for optimum adhesion. Clean and degrease surfaces before applying adhesive to remove all traces of dust, oil or dirt.

5. Inappropriate storage

Error: storing adhesives in unsuitable conditions.
Solution: Follow storage recommendations. Temperature and humidity can affect glue quality. Store products in a cool, dry place, out of direct sunlight.

6. Ignore Drying Time

Mistake: Not respecting the drying time.
Solution: Each adhesive has its own drying time. For vinyl adhesives, a longer drying time may be required for maximum adhesion, while dextrins may dry more quickly. Respect the drying time to ensure the best performance.

7. Glue overload

Error: Applying too much glue.
Solution: Too thick a layer of glue can not only be ineffective, but also messy and prone to problems. Apply glue in a thin, even layer for optimum results.

To solve all your technical adhesive problems, contact us at +212 5 22 59 20 90/91. You can also send an e-mail to or visit our production sites in Aïn Sebaâ and Bouskoura.