Skylark V6-3100 3.1L VIN M SFI (1996)
Windshield: All Technical Service Bulletins
New Windshield/Glass Urethane Adhesive Caulking Kit
File In Section: 10 - Body
Bulletin No.: 83-15-16
Date: October, 1998
INFORMATION
Subject:
New Windshield and Stationary Glass Urethane Adhesive Caulking Kit
Models:
1990-99 All Passenger Cars and Trucks
As a result of a change from standard viscosity urethane to high-viscosity urethane, a new Urethane Adhesive Caulking Kit, P/N 12346392, is now
available from GMSPO. This kit contains the "High Viscosity" Urethane Adhesive for thicker and more consistent bead size applications. When applied
properly, this new high viscosity urethane in many instances will eliminate the need for depth setting blocks or the damming material to control squeeze
out. The following is the contents of the new kit:
Like the standard viscosity urethane contained in kit (P/N 12346284) that it replaces, it is a one-part, moisture cure product with curing times that vary as
a result of changes in either temperature or humidity.
THE REQUIRED TIME FOR THIS NEW ONE-PART MATERIAL to ensure a safe installation of stationary glass before returning the vehicle to the
customer, IS A MINIMUM OF SIX (6) HOURS AT 70°F (21°C) AND 30% RELATIVE HUMIDITY.
Alternate equivalent materials for this kit may be available from a local glass repair shop under the following product numbers:
Other manufacturers of Urethane Adhesive that have documented their ability to meet or exceed General Motors specification # 3651M (Performance
Requirements for Stationary Glass Bonding Adhesive System Service) are also considered to be equivalent to GM Kit (P/N 12346392).
In previously published Corporate Bulletin Number 73-10-54, increasing customer demands for faster service have resulted in quicker two-part urethane
adhesives to be made available. Essex Beta Seal U216* (two-part urethane adhesive) also meets the General Motors 3651M Specification and can be
