U-Seal 201 Fast Adhesive | One-Component Polyurethane, Fast-Curing, for Direct Glass Installation and Structural Bonding

U-Seal 201 Fast is a fast-curing, flexible, high-performance one-component polyurethane adhesive, specially designed for direct glass installation in vehicles. This product is specifically engineered to ensure a quick drive-away time of just 2 hours for vehicles equipped with airbags.

• One-component polyurethane

• Solvent-free, odorless

• Fast curing

• Suitable for both low and high-temperature applications

• Exceptional thixotropy, excellent coverage, non-sagging

• High viscosity, strong initial adhesion

• High modulus – maintains torsional stiffness and improves NVH (Noise, Vibration, Harshness) values in vehicles

• Capable of withstanding significant dynamic stresses

• Suitable for use with integrated antennas

Application

U-Seal 201 Fast is specially designed for windshield bonding in the automotive glass replacement market, as well as side and rear windows for passenger vehicles, trucks, tractors, and special-purpose vehicles. This product is also used for bonding fiberglass reinforced plastic components (such as roofs, side panels, and front panels) on vehicles. U-Seal can be applied in any situation requiring a strong elastic structural bond between different materials (automotive paint, metal sheets, fiberglass, and reinforced plastics) and can withstand significant mechanical or thermal impacts.

DRIVE AWAY TIME (DAT)

• Safe drive-away time: 2 hours.
• For vehicles equipped with airbags for both driver and passenger.
• U-Seal 201 Fast complies with Federal Motor Vehicle Safety Standard 212 and meets all long-term durability requirements based on full N.P.T. laboratory data.

Instructions for Use

Insert the adhesive cartridge into a manual or pneumatic caulking gun (equipped with a telescopic piston). Surfaces to be bonded must be completely clean, dry, and free from dust and grease. Pre-treat the windshield and bonding surfaces according to NPT’s application guidelines, using NPT’s CLEANER or ACTIVATOR products and U-PRIMER 130 black primer. Preliminary adhesion tests should be performed on the supporting surface. For specific guidance on primer use, material samples can be sent to our laboratory.

Do not allow the adhesive to cure in the presence of curing silicone sealants. Avoid contact with alcohol and other solvent-based cleaning agents during curing. When applying the adhesive, ensure no air enters the system. Since this adhesive cures with moisture, ensure adequate exposure to air. Bonded parts may need to be held or supported during curing. Molding and finishing should be done before the adhesive forms a skin.

Cleaning Instructions

Clean tools using acetone or solvent. While the adhesive is uncured, it can be wiped off with paper or cloth. Once the adhesive has cured, removal can only be done mechanically. Avoid direct skin contact by wearing latex, rubber, or polyethylene gloves. If adhesive contacts skin, wash immediately with soap and water.

Storage Instructions

U-Seal 201 Fast can be stored for 12 months in its original (unopened) packaging at temperatures between 10°C and 25°C in a dry and cool place. The storage temperature should not exceed 25°C for extended periods. Keep away from damp areas, direct sunlight, and heat sources.