Polyurea Coats Glass Surface without Prep or Primer

Job Description: When you get a few water leaks in old skylights, it can be an annoyance. But when those windows start falling out, a simple problem becomes a safety hazard. That was the situation facing the maintenance crew at the Pontiac East Truck Plant in Detroit, Michigan.

Due to the location and age of the windows, the glass surfaces had to be coated without surface preparation. At first, polyurethane foam was considered. However, this material was rejected because it required a thermal barrier for interior application. General Motors officials then steered in the direction of SPI.

Blastech, the contractor, applied SPI GLASSHIELD-100 AE at a coverage rate of 1.5 gallons per 100 square feet. Upon request of General Motors, SPI A102, a single component aliphatic polyurethane, was color-matched to company standards and sprayed as a topcoat on the exterior.

All the interior surfaces were coated with an acrylic paint.

Subsequent to the satisfactory results of this project, General Motors awarded two similar projects to Blastech in 2000.

With the ongoing success of previous applications, General Motors gave Blastech another contract in early 2002.

Project:
Pontiac East Truck Plant
Detroit, Michigan

Owner:
General Motors Co.

Installing Contractor:
Blastech

System:
SPI Glasshield-100 AE at 1.5 gal. 100 sq. ft. (5.6 liters per 9.3m²) inside and outside of the glass. SPI A102 matched to company color applied on the exterior at one gal/100 sq. ft. (3.7 liters per 9.3 m²). Interior finished with acrylic paint.