3M 125 mL Single Step Primer (08681)
3M 125 mL Single Step Primer (08681) is a high-performance adhesive promoter designed for use in automotive glass replacement. This one-component primer enhances the bond between urethane adhesives and various types of glass, including standard, encapsulated (PVC), and pre-applied adhesive (PAAS) systems.
KEY FEATURES AND BENEFITS:
Improves urethane adhesion: Enhances the bond to a variety of glass surfaces.
Inhibits corrosion: Prevents corrosion on pinchwelds.
Fast-drying formula: Requires no activator.
Excellent UV resistance: Protects urethane adhesives from degradation.
Wide compatibility: Suitable for use with a wide range of 3M urethane adhesives.
Product Type: Primer
Prepare the Surface: Clean the glass surface thoroughly to remove any dirt, grease, or contaminants.
Apply Primer: Apply a thin, even coat of 3M 8681 Single Step Primer to the prepared glass surface using a 3M Urethane Primer Dauber (PN 08688).
Allow to Dry: Allow the primer to dry completely before applying urethane adhesive. Drying time may vary depending on temperature and humidity.
Apply Urethane Adhesive: Apply the urethane adhesive according to the manufacturer's instructions.
BENEFITS OF USING 3M 125 mL SINGLE STEP PRIMER (08681):
Stronger Windshield Bonds: Ensures a robust and durable bond between the windshield and the vehicle.
Improved Durability: Protects the windshield installation from environmental factors like UV radiation, moisture, and temperature fluctuations.
Corrosion Prevention: Helps maintain the structural integrity of the vehicle by preventing rust and corrosion on pinchwelds.
Efficient Installation: Fast-drying formula speeds up the installation process.
Specifically formulated: For automotive glass applications.
Compatible: With a wide range of glass types.
One-component formula: For easy application.
Promotes long-lasting windshield installations: Supports durable windshield fixes.
Prevents corrosion: Helps prevent rust on pinchwelds.
Product identification
- Brand: 3M
- Model / MPN: 8681








