Next Article in Journal
On the Porosity of Cu Coatings Formed in Earth-Based and Space Conditions
Next Article in Special Issue
Computational Tools and Approaches for Design and Control of Coating and Composite Color, Appearance, and Electromagnetic Signature
Previous Article in Journal
Protection and Reinforcement of Tooth Structures by Dental Coating Materials
Previous Article in Special Issue
Nano-Impact (Fatigue) Characterization of As-Deposited Amorphous Nitinol Thin Film
Coatings 2012, 2(4), 221-234; doi:10.3390/coatings2040221

An Overview of the Scratch Resistance of Automotive Coatings: Exterior Clearcoats and Polycarbonate Hardcoats

* ,
Ford Motor Company, Research and Advanced Engineering, Dearborn, MI 48124, USA
* Author to whom correspondence should be addressed.
Received: 17 September 2012 / Revised: 23 October 2012 / Accepted: 1 November 2012 / Published: 12 November 2012
View Full-Text   |   Download PDF [598 KB, uploaded 12 November 2012]   |  


The scratch resistance of coatings used on two highly visible automotive applications (automotive bodies and window glazings) were examined and reviewed. Types of damage (scratch vs. mar), the impact on customers, and the causes of scratch events were investigated. Different exterior clearcoat technologies, including UV curable and self-healing formulations were reviewed, including results from nano- and macro-scratch tests. Polycarbonate hardcoat glazings were tested vs. annealed glass samples using a Taber abraser, with the resulting damage analyzed using transmitted haze measurements and optical profilometry. A correlation between the damage seen in glass samples (many smooth, shallow mars) and the best hardcoat samples (fewer, deeper scratches) and the haze measurements was discussed. Nano-scratch results showed similar fracture forces, but measurably improved mar resistance for the hardcoats/glass system compared to exterior clearcoats.
Keywords: scratch; automotive; clearcoats; polycarbonate; hardcoats scratch; automotive; clearcoats; polycarbonate; hardcoats
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Supplementary material


Share & Cite This Article

Further Mendeley | CiteULike
Export to BibTeX |
EndNote |
MDPI and ACS Style

Seubert, C.; Nietering, K.; Nichols, M.; Wykoff, R.; Bollin, S. An Overview of the Scratch Resistance of Automotive Coatings: Exterior Clearcoats and Polycarbonate Hardcoats. Coatings 2012, 2, 221-234.

View more citation formats

Related Articles

Article Metrics

For more information on the journal, click here


[Return to top]
Coatings EISSN 2079-6412 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert