Sticky business! Specialised glue.

Adhesives are very popular these days for bonding different materials together, but not all
work so well with every material.

Polyactic Acid (PLA) is especially a tricky material when it comes to sticking
parts. Using cheaper versions can lead to horrible white stains on your product. It is
important that you use proper adhesives when binding.

Every plastic has its own properties, so it is pivotal that before you go on to bind some, make sure that you are using the right type. Effective PLA glues usually consist of two part epoxies, when the two are combined together they form a strong bond. Contact types are popular and can be used to join plastics. The products to be joined are thoroughly applied upon with the adhesive and then pushed together to dry off. This creates a super strong bond between the two parts making them almost inseparable.
The PLA glue is super effective these days majorly due to the advancements made in 3d printing. The parts made out of a 3D printer are usually plastic in nature and many a times they require some sort of glues to attach them together without damaging the product itself.
The biggest advantage is that they provide a relatively non toxic environment, which makes them eco-friendly and popular.

Using adhesives also removes the need for disposable plates which are needed sometimes in 3D models, apart from that they provide proper fixation and also help in avoiding any deformation required in forceful combination of two materials.

Picture showing PLA glue and bottle