Tag Archives: quantitative
In 2014, a large manufacturer of automotive exteriors and interiors encountered a problem consistently adhering paint to their dashboards due to an inappropriate use of their flame treatment.
Flame treatment is a popular and notable procedure that can successfully modify the surface chemistry of a polymer, readying it for adhesion. Although flame treatment is an effective solution, determining the amount of treatment can be a delicate procedure. The over-flaming of these highly sensitive polymers can lead to polymer reorientation due to localized melting and ultimately, destruction of the surface.
In this case, however, the manufacturer was not utilizing flame treatment to monitor their surface cleanliness. Instead, they used it to deflash excess material on the edges of their dash boards. The edges of the dashboard were being over-flamed, hindering the polymer’s surface adhesion ability. This, in turn restricted paint from correctly adhering to the edges of the dashboard. The company needed a way to determine the appropriate amount of flame treatment.
The competitive nature of the automotive industry requires manufacturers to engineer the ideal product; failures, no matter how small, are unacceptable and can bring heavy consequences.
A particular problem that plagues automobiles is condensation collecting on the inside of headlights. High performance automotives must not only perform well mechanically but must also maintain an exceptional aesthetic. Water droplets condensing on the insides of headlights are unappealing and unacceptable to consumers.
In order to prevent that condensation, manufacturers use an invisible coating on the inside of polycarbonate headlight lenses called anti-fog.
This coating is applied via spray application which can be difficult and inconsistent due to several variables: low energy mold releases left on the surface; environmental contaminants; contaminants from handling; uneven spray application; and incorrect coating solutions.