Extended Method Description

Use the extended method when the original urethane adhesive bead left on the window opening
pinchweld flange (after window removal) cannot serve as a base for the new window, or in any case where the use of the short method is in doubt.
This method includes the following cases:
- The replacement of a majority of the urethane adhesive bead, where a thin film of the original bead remains
- Applying pinchweld primer to any exposed painted areas on the pinchweld flange

No mounds or loose pieces of urethane adhesive should remain on the pinchweld flange. Do not remove all traces of urethane adhesive.

IMPORTANT:
- If corrosion of the pinchweld flange is present, or if sheet metal repairs or replacements are required, refinish the pinchweld flange in order to present a clean, primer-only surface.
- If paint repairs are required, mask the flange bonding area (prior to applying the color coat) in order to provide a clean, primer-only surface.
- Appropriate materials for these primer applications are typically two component catalyzed products. Use materials such as BASFDEI7 (R) DuPont 2810 (R), Sherwin-Williams PSE 4600 and NP7O (R) and Martin-Semour 5120 and 5130 (R) products are approved for this application. Follow the manufacturer's directions for the mix, the application, and the drying times.
- After repairing the opening as indicated, shake the pinch weld primer #3 (black) well. Using a new dauber, apply the primer to the primed surface of the flange in the bonding area. Allow the primer to dry for 10 minutes.
- Use the extended method of replacement and the appropriate urethane bead size when installing the window.

Stationary Window Description
Most stationary windows, specifically windshields, are retained to the body with urethane adhesive which adheres the window to the body. This increases structural integrity. The reinstallation of the windows with urethane adhesive requires either partial or complete replacement of the urethane adhesive bead:
- The short method (also known as short cut or close cut) is the partial replacement.
- The extended method (also known as long method, full strip, or full cut) is the complete replacement.