Adhesives for Plastic Applications

DELO adhesives for plastic applications provide reliable bonding, sealing, and encapsulation across a wide range of thermoplastics and engineering plastics, including PET, PVC, PA, ABS, PC, PMMA, and PBT. These solutions are widely used in lightweight assemblies where mechanical strength, durability, and process reliability are critical.

Plastic bonding presents specific challenges such as low surface energy, thermal expansion, and mixed material interfaces. DELO adhesive technologies are engineered to address these issues, enabling consistent manufacturing results and long‑term performance. Depending on the application, joints can be designed to be flexible, tension‑equalising, rigid, or resistant to high mechanical stress.

Inseto supports customers across the UK and Ireland with application‑focused adhesive selection, process optimisation, and technical support for plastic bonding applications.

Plastic bonding challenges

Plastics are increasingly used to reduce weight, improve design flexibility, and lower manufacturing costs. However, effective plastic bonding can be limited by:

• Low surface energy materials such as PP and PE
• Sensitivity to heat, solvents, or aggressive processing conditions
• Differential thermal expansion between bonded substrates
• High aesthetic requirements for visible joints
• Variability in plastic formulations, fillers, or surface treatments affecting adhesion

DELO adhesives are formulated to overcome these challenges while supporting both manual and highly automated production processes.