For windscreen replacement requiring rapid return-to-service, NP-60 is a 600ml polyurethane windscreen adhesive — commonly described as windscreen urethane or auto glass adhesive — with a 1-hour drive-away time with dual airbags. Tested to FMVSS 212, it provides high green strength and a high-modulus, flexible bond for bonded windscreens, fixed side glass and compatible vehicle glazing.
NP-60 cures by reacting with atmospheric moisture to form a tough elastomeric joint. The adhesive achieves a Shore A hardness of over 50, providing structural stiffness to the vehicle body while maintaining an elongation at break of over 700% to absorb dynamic vibrations and road impact. Its high green strength prevents glass displacement immediately after installation, curing at a rate of 3mm per 24 hours.
The application method depends on the glass type to prevent adhesion failure:
Browse Windscreen & Auto Glass Adhesives, Windscreen & Auto Glass Primers, or the complete Auto Glass Range for the full replacement system.
A vehicle fitted with Autoshield NP60 can be driven after 1 hour. This applies at 23°C and 50% relative humidity, meeting the FMVSS 212 standard for dual airbag deployment. This rapid drive-away time ensures quick vehicle return to service without compromising safety.
Autoshield NP60 is primer-less for plain glass, requiring only Autoshield Activator. For windscreens with a ceramic band, Autoshield GB Primer is necessary after light abrasion to ensure proper adhesion and prevent issues with silicone residues. Always follow specific prep instructions for each substrate.
Autoshield NP60 passes the FMVSS 212 crash test. This certification confirms it maintains structural integrity and allows for dual airbag deployment within 1 hour of installation, provided specified conditions (23°C, 50% RH) are met.
Yes, Autoshield NP60 can be applied between 5°C and 35°C. For temperatures between 5°C and 15°C, drying times will be twice as long. Always store the product at 20°C before use in cold conditions to ensure optimal performance and workability.
| Application | Key benefit | Primary trades |
|---|---|---|
| Windscreen replacement on passenger vehicles | Achieves 1-hour drive away time with dual airbags, meeting FMVSS 212 safety standards. This ensures rapid vehicle return to service. | Auto glaziers, smash repairers |
| Side glass installation | Forms a high modulus, flexible bond with high green strength, securing side glass quickly and reliably. | Auto body technicians, vehicle customisers |
| Bonding glass to aluminium vehicle bodies | Optimised for adhesion to aluminium, preventing compatibility issues and ensuring a durable bond for modern vehicle construction. | Vehicle manufacturers, specialist vehicle builders |
| Applications requiring rapid vehicle return to service | Fast moisture-curing polyurethane provides rapid green strength and cure, minimising vehicle downtime in busy workshops. | Fleet maintenance, auto repair shops |
Begin by preparing the vehicle. Remove mouldings and old glass, then trim the existing adhesive bed, leaving a clean, flat base of 1-2mm. Inspect the pinchweld for any corrosion; treat and repair as necessary. The job's integrity depends on this first step.
Using a fresh, lint-free applicator, wipe down both the pinchweld bonding surface and the ceramic frit band on the new windscreen with Adheseal Autoshield Activator. This crucial step removes contaminants and chemically prepares the surfaces for bonding.
Proper priming creates the unbreakable chemical link needed for a safe, OEM-quality bond.
Thoroughly shake the Adheseal Autoshield GP Primer can for at least one minute after the mixing ball is free. Apply a thin, even coat to the activated frit band and any bare metal repairs on the pinchweld. Ensure complete, solid coverage.
The final stage requires a steady hand and correct technique to ensure a perfect, leak-free seal.
Prepare the NP-60 cartridge and cut the V-notch nozzle to the required size. Apply a continuous, consistent, triangular-shaped bead of adhesive onto the primed glass or pinchweld. Ensure there are no gaps in the bead.
Carefully lift and set the new windscreen into position within 10 minutes of applying the adhesive. Apply gentle, even pressure to bed the glass into the adhesive, ensuring a proper wet-out and seal. Use setting blocks and tape to secure the glass during the initial cure.
Signal Word: Danger
Wear protective gloves (nitrile rubber recommended), apron, safety glasses, and a respirator. If inhalation risk exists, use an organic vapour/particulate respirator meeting AS/NZS 1715 and AS/NZS 1716 standards.
Ensure adequate ventilation, using local exhaust ventilation in enclosed areas. Avoid generating and inhaling dusts, fumes, gases, vapours, or spray.
Store in dry and cool conditions. Dispose of contents and container in accordance with local, regional, national, and international regulations, preferably by hazardous waste incinerator.
Proper surface preparation is crucial for achieving the specified performance and ensuring durable, compliant bonds.
Surface prep: Clean with acetone until residue-free. Avoid touching the prepared area. Then, apply Autoshield Activator using a wipe on/wipe off method with a clean, dry, lint-free cloth. Wipe off the activator 30 to 60 seconds after application, once the solvent has evaporated. Never clean old sealant with alcohol-based solutions.
Primer: Required. Use Autoshield Activator. Do not use if the activator appears cloudy.
Surface prep: Clean with a glass cleaner to remove impurities. Abrade the ceramic band lightly with a Scotch Brite pad (Very Fine - Red) using 5 back and forth movements to remove silicone residues. This action will not affect UV protection. Then, follow with acetone cleaning as for plain glass.
Primer: Required. Apply a thin, uniform film of Autoshield GB Primer with an applicator pad. Shake the bottle before use and close immediately. Allow primer to dry for 15 to 60 minutes, depending on temperature, before applying the sealant.
Surface prep: Clean with acetone until the surface is free of contamination. Repeat the cleaning process if necessary. Do not touch the prepared area after cleaning.
Primer: Not required. Autoshield NP60 is formulated for direct adhesion to properly prepared aluminium.
| Property | Value |
|---|---|
| Curing System | Moisture |
| Specific Gravity | 1.35 +/- 0.05 |
| Sag / Slump | None |
| Application Temperature | 5 °C to 35 °C |
| Skin Time | 20-35 min approx. |
| Full Cure | 3 mm / 24 hr |
| Shore A Hardness | >50 |
| Shear Resistance 5hr 23C 50HR Ford SAE J 1529 | >3 MPa (130 psi) |
| Shear Resistance 7 Day 23C 50HR Ford SAE J 1529 | >3.5 MPa (500 psi) |
| Water Resistance | Excellent |
| Temperature Resistance | -40 °C to 90 °C |
| Modulus At Break ISO 37 | approx. 6 MPa |
| Elongation | > 700 % |
| Tear Strength | approx. 20 N/mm |
| Crash Test Performance FMVSS 212 | Passes 1 hour with dual airbags |
| Bond Strength | >3 MPa (130 psi) |
Here are some common examples on where Adheseal NP-60 Polyurethane Windscreen Adhesive used by our customers.
