Plastic is common in household, industrial and repair applications, but not every adhesive works well on every plastic surface.
Most plastics have smooth, non-porous surfaces, which makes surface preparation important. Cleaning, light abrasion where appropriate and correct adhesive selection can improve bond performance.
For long-lasting plastic bonding, choose a product suited to the plastic type and application condition, apply it evenly and allow full curing time before stressing the joint.