Date of Award
Master of Science (MS)
Dr. Stephanie Crette
The growing movement of assigning cultural and heritage value to graffiti and street art is one without a preservation solution to ensure the longevity of these works in-situ in an outdoor environment. The goal of this thesis was to provide a comprehensive evaluation of six architectural topcoats’ performance when applied as a conservation treatment to outdoor aerosol graffiti and street art on concrete substrate. An artist’s quality, durable, color-fast spray-paint was applied to twenty-eight concrete test panels to mimic the application of graffiti or street art. Six topcoats, Prosoco SC-1, Prosoco Gloss n’ Guard WB, Keim Faceal Oleo HD®, Keim PSS-20®, Edison Aquathane UA-210, and Golden Paintworks MSA Varnish with UVLS were selected and brush applied to the painted substrate samples to create systems of topcoat, spray-paint, and substrate. The selected topcoats represent a range of formula types including acrylates, polyurethane, wax, and vegetable polysaccharide. Half of the systems were weathered for 875 hours in a QUV-SE Accelerated Aging Chamber to mimic the effects of outdoor degradation. Weathered and un-weathered systems were subjected to chemical resistance testing to determine vulnerability to chemicals mimicking atmospheric pollutants and cleaning agents. Systems were analyzed visually, using a colorimeter, glossmeter, and microscopy. Findings suggest that several formulas are successful for application to outdoor graffiti and street art, including MSA Varnish with UVLS, SC-1, and PSS-20®. Data generated in this thesis can be used to make informed conservation decision and in the development of proprietary topcoat to protect graffiti and street art.
Morris, Riley, "A Performance Evaluation of Architectural Coatings to Preserve Aerosol Paint on Concrete" (2022). All Theses. 3753.