Who is correct regarding the need for a flex additive on flexible bumpers?

The need for a flex additive on flexible bumpers is often discussed in the context of enhancing the durability and flexibility of the paint applied to these surfaces. Flexible bumpers are typically made from materials like polyurethane, which require a special type of paint that can withstand the stress of bending and flexing without cracking or peeling.

Technician B's assertion that a flex additive is necessary is correct because it ensures that the paint maintains its adhesion and flexibility as the bumper undergoes the normal wear and tear from impacts, temperature changes, and other environmental factors. Without this additive, the paint is less likely to match the elasticity of the bumper material, leading to potential failures in the finish over time.

It’s important to recognize that while Technician A may have a different viewpoint, the inclusion of flex additives is a common industry practice that supports the longevity and appearance of painted flexible bumpers. This understanding reinforces the significance of following proper painting protocols when working with various automotive materials.