Than to glue plastic?

Before figuring out what to glue plastic, it should be noted that all plastics, regardless of their polarity, surface treatment method and chemical composition, can be successfully glued together.

For example, a toy has broken down, a car part has been damaged. To list all areas in which plastic bonding is used, you need to tell about all the products from this material.

Plastic is a complex organic compound, made on the basis of polymers. To produce gluing of parts, it is necessary to use only quality mixtures. The market today offers a wide range of products of different brands to choose suitable adhesives for plastic, it is better to consult with knowledgeable people, and also carefully study the information in the instructions to the tool.

The list of the most popular adhesives for plastics includes the following products:

· The moment;

Strong Plast;

· Power Plast;

· UHU;

· WEICON constraction;

· AKFIX glue, and others.

How to glue plastic: tips for improving the quality of the connection

The joints made with the help of cold-setting adhesives may not be strong enough. Especially negatively, this affects the material that is used in high temperature or high humidity conditions. Improve the quality of the bonding and, thus, expand the range of adhesive products for plastic, the method of heating will help. In such cases, the strongest compound can be achieved with epoxy and polyurethane glue, phenol-polyvinyl acetal compositions, for example, BF, OT, BC, VS-350, are also suitable for this.

Thermosetting polymers, such as polyurethanes, polyesters, epoxides and other materials, are glued together by adhesive thermosetting compositions. For these plastics, in addition to the listed mixtures, furan and cyanoacrylate compositions, as well as an adhesive containing synthetic rubber, will be suitable.

In order to understand well the question of how to glue plastic, it is also necessary to know that the quality of the connection of some thermoplastic materials improves when using ultrasound. Today, a method has been developed that allows the polymer surfaces to be modified before gluing by irradiation with UV rays or halogens.

How to glue plastic: instruction for work

First, make sure that the surfaces to be treated are dry and clean. The edges of the parts must be as precisely as possible adjusted to each other. Next, apply glue, while you need to do so that the softening of the slices from it occurred on the entire surface and at maximum depth. In work it is better to use a brush or a syringe, you can use the spraying method, or apply the method by immersing the parts.

Further, in order to ensure a good connection, the two parts to be joined are kept under pressure, the holding time must be sufficient and be carried out until a solid adhesive layer is formed. Only by achieving maximum strength, you can perform machining or finishing the part.

How to glue plastic, how to do this, so that the parts do not crawl during operation? To ensure a lasting connection, the method of plastic reinforcement is often used with the help of special materials that are glued or melted with solvents or glue. Techniques for joining thermoplastics using plasma treatment are known, or by applying a layer of metal to the heated surface, worn down to a pulverulent mass (in such cases, cast iron or steel sawdust is used).

If you can not figure out what kind of plastic is in front of you, it's better to use a universal adhesive. It is suitable for joining any polymer material, however, the quality is often lower for it than for special adhesive compositions.