GSP Coatings is easily accessible from Interstate 91. From the South: Take Exit 1 off I-91. Turn left on Route 5/Canal Street. Travel .2 miles and turn left on John Seitz Drive. G. S Precision is the first building on the right. From the North: Take Exit 1 off I-91. Turn right on Route 5. Travel .1 mile and turn left on John Seitz Drive.