Glueing of plastics and other materials

The glueing of plastic is a manual process requiring high precision. At Induflex, we can glue various plastics and natural materials.
Hand glues two black sheets of acrylic with a pipette containing glue

Glueing plastic


Glueing achieves a uniform, durable and attractive result. We have significant savoir-faire when it comes to glueing a variety of products and materials. Glueing has the advantage of allowing various products such as displays, acrylic boxes or podiums to be joined.

 

Glueing seldom lends itself to automation and, depending on the material, requires different types of glue. Correctly performed, with the right glue for the material, glueing can result in smooth and in some cases almost invisible joins.

Before any glueing project, we review possible alternatives and advise you so that we can establish the characteristics and appearance you require.

 

Read more about glueing various types of plastic and other materials on this page.


Glueing acrylic


Acrylic can be glued so that the joins are almost as strong as the acrylic itself. But thorough preparation is required. Before the glue is applied, surfaces must be prepared through de-tensioning, de-greasing and cleaning . Then surfaces must be held/pressed together whilst the glue hardens.

 

As a rule of thumb, one can say that glueing coloured acrylic gives a better result than glueing clear acrylic, because the glued surfaces are invisible on non-transparent acrylic.

 

Glueing clear acrylic is difficult because air bubbles are formed as the glue hardens and these are visible against the clear acrylic.

Acrylic in green, purple and dark green from the brand Perspex
Colour chart and sheets of acrylic in different colours

Glueing of steel, wood and other materials


In most builds, plastic is glued together with plastic of the same type. However, two different types of plastic, or a plastic and metal or other material, such as linoleum or Corian®, are sometimes glued together.

 

Glueing of diverse plastic types is possible only if the two plastics are closely related. Certain plastic types cannot be glued together.

 

Similarly, glueing plastic to a metal is problematic, but not impossible. It is important to be aware of differences in thermal expansion, where an example is acrylic, with its expansion coefficient five times higher than that of steel.

 

We will of course provide advice on materials and glueing so that you can be assured of the optimal result.

 

Glueing of technical plastic


Glueing technical plastic depends on the chemical resistance of the plastic type. The higher the resistance, the more difficult glueing can be.

 

The two most used technical plastics, PEHD and POM, are both chemical-resistant and therefore difficult to glue.

 

We do not have a tradition of glueing technical plastic and prefer to find a way to produce the item without glueing.

 

Glueing with UV glue


Certain types of glue have been developed to cure when exposed to UV light. UV glue does not bind with plastic, it is merely the adhesive. This means that UV glueing is not as strong as chemical glueing. Moreover, it can only be used when at least one of the materials is UV-transparent, such as for example clear acrylic.

Grey sign with the text new in acrylic with a foot of corian
Square podium of Dibond with the shape of a cube and digital print in a wooden pattern

Alternatives to glueing


Our knowledge of materials and processes enables us to suggest glue-free solutions to tasks. It may be possible to alter the construction such that, in some cases, a better solution can be arrived out without glueing.

 

The most common alternatives to glueing are:

 

Heat or cold bending


With a little imagination, many glueing projects can be resolved by bending the material. We should however stress that not all plastics can be bent. Read more about heat or cold bending here.

 

Double adhesive


Double adhesive is a financially viable solution, where the weight of an object is relatively light in comparison to the adhesive surface. It is used in a high percentage of logo signs and letters on signs.

 

Locking systems


Locking systems involve combining plastic sheets without glue, or in combination with glue. The method has become popular for sales displays in shock-resistant acrylic. Ordinary acrylic is too fragile and will break if treated in this way.

We have many materials in stock - ready for your next project

We have many materials in stock - ready for your next project

A range of acrylic samples in colours including green, yellow, red and purple

Do you want to learn more about glueing? Fill out the form and we will contact you.

Salesman by the computer at Induflex is ready to process your inquiry