How to choose the best glue for plastic

Plastic is a material that can be used for many different things, from industrial components to household items. Selecting the appropriate glue for plastic can be crucial when working on DIY projects, building models, or fixing broken toys. With so many different kinds of adhesives on the market, it can be difficult to determine which one will work best for your particular application.

Since every type of plastic has unique properties, not all glues are suitable for every type of plastic. Certain adhesives are better suited for hard, rigid plastics, while others are made to bond with soft plastics. To choose the best adhesive for your project, other important considerations include drying time, bond strength, and ease of use.

We’ll walk you through the key factors in choosing the best glue for plastic in this article. We’ll look at the different kinds of adhesives, their special qualities, and useful hints for creating a solid, long-lasting bond. You can ensure that your plastic items are securely bonded and make an informed decision by being aware of the advantages and disadvantages of each type of glue.

Glue for plastic – the main features

Because plastic is unique due to its unique composition, it is not an easy task to glue. Its chemical components—polymers—are inactive, and its surface porosity is either nonexistent or excessively low.Its degree of adhesion to other products is also low. For this reason, it is more prudent to use welding of parts in industrial, construction, and other areas.

Welding products together is challenging, if not impossible, in home settings. Thus, in this instance, it is more practical to use plastic glue rather than search for welding equipment. Manufacturers developed a unique glue for plastic that can produce the required connection quality.

These solutions enable the restoration of broken objects, but selecting the appropriate solution is more crucial than firmly adhering to plastic at home. After all, glue on plastics can only produce a trustworthy outcome if it is appropriate for a specific kind of material, and selecting the right solution won’t be feasible if the type of plastic product is unknown. For instance, welding is required because gas-resistant plastic cannot be adhered to with glue.

Only when plastmass glue is appropriate for a particular kind of material can it produce a trustworthy outcome.

How to choose glue depending on the type of plastic

Adhesive solutions are designed for a particular kind of material in order to achieve dependable fixation. It is necessary to identify the kind of material that the product in question is made of before deciding which plastic glue to purchase. It won’t be feasible to select the best adhesive tool until then.

Solvents corrode material, so the presence of aggressive elements in the composition will not result in repair but will instead cause the emergence of new flaws.

When it comes to this task, glue has similar strong qualities; however, weak adhesion hinders the achievement of consistent adhesion. Consequently, there won’t be any fixation at all.

While the specifications for the solution’s qualities may change depending on the situation, the seam must always have a significant mechanical impact. Additionally, in other versions, using items on the street may require a frost-resistant feature.

How to determine the type of plastic, marking

It is mandatory for manufacturers to mark their products clearly, indicating how and what was used in their creation. It is simple to identify the type of plastic to which a product belongs thanks to a single system of designation. differ in the kind of component parts and the technical attributes they possess. The following acronyms are used:

    Pete is low -pressure polyethylene, used for packaging materials, often made of food for food products. Can be used for the production of parts of radio and electrical products, capacitance for cosmetics;

Pete is a low-pressure polyethylene material that is frequently made of food for use in food products.

The stronger structure can be found in containers for utensils, household chemicals, cable insulation, etc.

PS Polystyrene is a material that can be used to make refrigerator shelves and dishes.

Types of glue for plastic

Adhesive compounds for plastic products come in various varieties. Regarding their functions, parts, and goals, they differ from one another. You should weigh the advantages and disadvantages of each composition type when determining which is appropriate in a given circumstance. They are separated into four sizable categories: liquid, contact, reactionary, and heaters.


These adhesives are heated, and unique adhesive pistols are utilized in the process. The pistol, which comes in a variety of styles and price points, is what starts the heating process. Plastic beads are widely used in needlework and are firmly attached to a variety of materials. Even with assistance, handling broken plastic object parts will be challenging.

Heat-mockles come in various forms, each with a slightly different purpose. The only shape of rod that works for home pistols is this one. The remainder are made for professional adhesive pistols that are more costly.


Maintaining this kind of plastic components will be easy, and the clutch will be of excellent quality. There are two types of contact adhesives: those that contain a hardener and those that do not. The same actions are taken when using either type. One or both of the components that need to be joined together are covered in glue. After the composition has set, which usually takes ten to fifteen minutes, the details are pressed together.

Due to the toxic elements in this composition, safety precautions must be taken during work, adequate ventilation must be established, and substances must not come into contact with the skin.


Since they are the simplest to use, liquid adhesives are the most widely used. Options based on water are differentiated and include diluents. Depending on the components used, their working principle is based on the natural evaporation of solvents or water. After everything is finished, the process hardens and a trustworthy seam is produced.

Accordingly, they shouldn’t be applied to hermetic objects as evaporation might not happen in this situation. Among these, it stands out due to the well-known PVA; it works well on porous surfaces and can be applied to furniture to attach plastic films. Dies of this kind and dichlorestan are also used, but because of their detrimental effects on health, they are primarily used in industry.


Additionally, there are two subspecies of the reactionary appearance: one-component and two-component. Since the first subspecies already has a hardener, their production containers are sealed tightly. When adhering, the outline happens rapidly. "Superglines" and comparable instant-impact products are among them. The air and moisture in the environment have an impact on curvy. It can therefore be applied to a damp surface.

The second kind operates on a similar principle to the first one in that the polymerization process is initiated by mixing with the hardener, so preparation is required before work begins. Environment has a role in healing. The mixture has a limited time of use that you must adhere to. The two-component subspecies epoxy, polyurethane, and other are the most widely used.

If you know what to look for, selecting the best glue for plastic can be simple. Knowing the kind of plastic you’re working with and the requirements of the particular project are crucial. To guarantee a solid bond, it’s critical to match the adhesive to the type of plastic because different plastics respond differently to different adhesives. Think about things like how quickly the glue dries, how simple it is to use, and whether it needs to be waterproof or temperature-resistant. You can choose a glue that gives your plastic projects a strong, long-lasting hold by keeping these factors in mind.

Different brands produce glue for PVC and other plastics, so in order to make selecting a strong composition easier, you should take into account the following well-known products:

    "Moment Plastic" is suitable for working with several types of plastic material. Fixation has a persistent and strong result. Waterproof and heat -resistant seam, the composition of toxic elements are present, cannot be used for objects that have contact with food products, and skin;

Certain sealants are designed to be compatible with automotive detailing. Other adhesives are available for purchase. Given that everything depends on the kind of plastic product and the working environment, this is unquestionably the best option. To make the right decision, you must carefully read the instructions before making your selection.

Which glue is better to glue plastic to plastic tightly

To make selecting from all the species on display easier, concentrate on a few straightforward suggestions. Among them are:

  • The first step is to determine the type of plastic that they are going to glue;
  • Study the marking indicated on the adhesive composition;
  • It is important to check the integrity of adhesive containers, the shelf life and tightness of the closing of the tube are also important. Violation of these parameters can lead to glue dysfunction;
  • You need to buy a small glue sufficient for work, it can quickly deteriorate;
  • When buying, you should also consider the features of the material to which plastic will be attached: metal, wood, glass, wallpaper, tiles, etc.D.;
  • When operating the products from the outside, they choose moisture resistant species, this property is also necessary in bathrooms, in the kitchen;
  • Work with contact compositions requires good ventilation;
  • If the marking was not found on the subject, then you should focus on the above data on the purpose of different types.

How to work with plastic

Prior to firmly adhering plastic to plastic or other materials, the objects themselves are prepared. They need to be thoroughly cleaned of any potential contaminants. Ethyl alcohol or soap solution can be used to carry out the degeneration process. The degree of adhesion increases and it will be much easier to glue the parts to the clean, low-fat surface. Then, carry out the following steps listed below:

  1. It is advisable to grind, I use the sandpaper, you don’t need to rub hard, it is enough to get a small roughness so that the glue can be easier to cling to the surface.
  2. Mixing two -component adhesives begin only after the completion of the stage of surface preparation. Because they grasp too quickly, and contact with air can lead to solidification of a solution, which can no longer be applied to the surface.
  3. If the brush is chosen by the application tool, then it should be made of artificial bristles.
  4. You need to apply glue carefully, following the thickness of the layer, when pressing objects to each other, the excess should not go beyond the edges.
  5. Pressing the parts are strong, but without a powerful load.
  6. The period of time that is needed for compression is determined depending on the type of glue.

You can use a needle to seal off a small crack.

The procedure for adhering plastic was illustrated in the article. Due to the short setting times of each composition, the work won’t take too long. However, the type of plastic material to be used as a guide should determine which adhesive solution is best for achieving dependable fixation.

Factor Recommendation
Type of Plastic Check the label to ensure the glue is suitable for the specific plastic type (e.g., PVC, ABS, polystyrene).
Drying Time Choose a glue that suits your project"s timeline, from quick-drying options to those allowing more adjustment time.
Strength For high-stress joints, opt for strong adhesives like epoxy or super glue. For less critical bonds, general-purpose glues may suffice.
Application Method Select a glue that fits your application preference, whether it"s a brush, nozzle, or squeeze tube.
Flexibility If the plastic parts will flex or move, choose a flexible adhesive like silicone or rubber-based glue.
Water Resistance For outdoor or wet environments, ensure the glue is waterproof.
Clean-Up Consider how easy it is to clean up excess glue, especially if you need a neat finish.
Safety Check for non-toxic options if needed, particularly for projects involving children or food contact surfaces.

Understanding the kind of plastic you’re working with and the particular requirements of your project are important when selecting the best glue for plastic. Not every plastic is the same, and not every plastic responds well to every adhesive. For flexible or high-stress applications, cyanoacrylate, also known as super glue, may not be the best option despite providing strong bonds on a variety of plastics.

Think about the surroundings that your project will operate in. Certain glues have greater resistance to heat, moisture, or chemicals. A plastic cement or epoxy adhesive that is waterproof might be the best option for projects that are outside or for items that are exposed to the weather. On the other hand, a straightforward solvent-based adhesive might work well for low-stress or indoor applications.

Usability is yet another crucial element. For novice users, it can be difficult to mix and apply some glues precisely. Time and hassle can be saved by using ready-to-use options like all-purpose adhesives or super glues made specifically for plastic. For optimal results, always adhere to the manufacturer’s instructions and make sure the surface is dry and clean before applying.

Finally, think about health and safety measures. Certain adhesives release potent fumes or include dangerous substances. It’s important to use these in an area with good ventilation and to wear the proper safety equipment. There are non-toxic, low-odor alternatives that might be better suited for projects involving kids or indoor use.

In conclusion, the best glue for plastic hinges should be chosen by taking into account the type of plastic, the demands of the project, and the preferences of the user. You can guarantee a solid, long-lasting bond that satisfies the requirements of your particular application by taking these factors into account.

Video on the topic

Best glue for plastic

Found glue that melts plastic. Glue is old, but I just found out about him

Learn all about adhesives for modeling in 6 minutes

What color, in your opinion, is able to make a person happier?
Share to friends
Daria Yakovlev

Interior designer, author of online color design courses. I will help you create a harmonious interior using color.

Rate author
Add a comment