Professional Automotive Windshield Polyurethane Adhesives
- 🚀 1-Hour Drive Away (Available on F-Series)
- 🛡️ Primer-less Technology
- 🌿 Eco-Friendly & Low Odor
- 🌍 Global Best Seller
Professional Automotive Windshield Polyurethane Adhesives
CHEM PU specializes in the development and manufacturing of high-performance polyurethane adhesives for automotive glazing. Our windshield adhesive series is engineered to deliver superior bonding strength, weather resistance, elasticity, and durability. Ideal for automotive manufacturing, repair, and aftermarket applications.
Technical Documentation & Downloads
Access comprehensive technical data for our automotive glass adhesive series. Our Technical Data Sheets (TDS) provide detailed information on physical properties, curing characteristics, and application guidelines to ensure optimal bonding performance for your specific requirements. All documents are available for instant download in PDF format.
- 1-Hour SDA: Allows vehicles to be driven safely just 1 hour after installation.
- No Sagging: Excellent thixotropy ensures the bead stays in place without dripping.
- Bubble-Free: Smooth application with no bubbles for a clean finish.
- Rapid Cure: Features a 1-hour safe drive away time for high-efficiency repairs.
- High Viscosity: Thick consistency prevents sagging on vertical surfaces.
- Strong Bonding: Provides excellent adhesion and sealing for windshields and backlites.
- Primerless: Saves time and cost; no primer application required.
- Eco-Friendly: No corrosion or pollution to substrates; environmentally friendly.
- Versatile: Ideal for windshields, side windows, and general car body sealing.
- Market Proven: A best-seller in the international auto glass repair market.
- Primerless: One-component moisture curing for easy application.
- Reliable Sealing: Excellent bonding performance with no bubbles during application.
- Cost-Effective: High-quality performance at a competitive price point.
- Primerless: Simplifies the installation process (no primer needed).
- Durable: Resistant to weathering and maintains a stable bond.
- High Elasticity: 400% elongation at break absorbs vibration and stress.
- Primerless: Convenient one-component application without primer.
- Strong Initial Grab: High viscosity provides excellent initial bonding strength.
- High Viscosity: Designed for strong initial grab and stability.
- Primerless: Moisture-curing polyurethane for fast and easy use.
- Tear Resistant: High tear strength (10 N/mm) ensures long-term durability.
- Odorless: No volatile smell, perfect for luxury cars, buses, and trains.
- Non-Sag: Stays in place even on 30mm perpendicular beads.
- Wide Application: Suitable for cars, railways, ships, and engineering vehicles.
- Paintable: Can be painted and polished after curing.
- Multi-Substrate: Bonds well with metal, wood, glass, and plastics.
- Seam Sealing: Ideal for welding seams, cold storage containers, and van bodies.
- Superior Strength: Tensile strength ≥8 MPa and Tear strength 20-25 N/mm.
- Structural Bonding: Capable of bearing high mechanical deformation forces.
- Versatile: Bonds metal, plastic, and glass; suitable for FRP accessories.
Product Showcase
1. Fast Curing Series
Suitable scenarios: Quick repair shops that pursue ultimate efficiency, and customers who urgently need their vehicles delivered.
Main models: PA-1601F / PA-160F
Key Advantages:
⏱️ 1 Hour Safe Drive Away Time: Safe driving is possible 1 hour after application, significantly improving turnaround time.
💪 High Initial Strength: Excellent initial bond strength ensures driving safety.
💧 No Sagging: High-viscosity formula, no sagging during vertical application.
✅ Primer-less: Most substrates require no primer, simplifying the application process.
View PA-160 Specs
2. Standard & Primer-less Series
Applicable scenarios: Routine maintenance, fleet maintenance, general glass bonding.
Main models: PA-1453 (international best-selling model), PA-1451, PA-1452, PA-1601, PA-160N
Key Advantages:
🏆 International Best Seller: Reliable quality proven in the global market.
✅ True Primer-less: Single-component moisture-curing, no primer required, reducing costs.
🌡️ Wide Temp Range: Stable performance in environments ranging from -40℃ to +90℃.
🔒 Leak-Proof: Excellent sealing performance, waterproof and dustproof.
📈 High Elongation: Up to 400% elongation at break, adapting to vehicle vibrations.
View PA-145 Specs
3. Premium Odorless Series
Applicable scenarios: Luxury car repair, buses/coach, rail transit, construction in enclosed spaces.
Main model: PA-145N
Key Advantages:
👃 Zero Volatile Odor: No irritating odor, protecting technicians’ health and enhancing the luxury car customer experience.
🚌 Versatile Application: Widely used in high-speed rail, ships, and large buses.
🎨 Clean Finish: Smooth surface after curing, easy to repair.
🛡️ Secondary Repair Friendly: Suitable for secondary repairs, with moderate hardness, will not damage the original paint.
View PA-145N Specs
Technical Data
| Feature | PA-1601F(Fast) | PA-1453(Standard) | PA-145N(Odorless) |
|---|---|---|---|
| Curing Mechanism | Moisture | Moisture | Moisture |
| Drive Away Time | 1 Hour ⚡ | Standard | Standard |
| Primer Required | No | No | No |
| Tensile Strength | 8.0 MPa | 4.5 MPa | 5.0 MPa |
| Elongation at Break | 350% | 350% | 400% |
| Service Temperature | -40~+90℃ | -40~+90℃ | -40~+90℃ |
| Package Options | 310ml / 400ml / 600ml | 310ml / 400ml / 600ml | 310ml / 400ml / 600ml |
Company Advantage
Backed by over a decade of R&D, CHEM PU delivers OEM-grade polyurethane adhesives trusted globally. Our windshield sealants are engineered specifically for maximum strength, durability, and safety, ensuring every installation meets rigorous international standards. Build with confidence using China’s leading adhesive technology.
Our Solutions for Critical Automotive Applications
We specialize in polyurethane adhesives designed for the most demanding bonding and sealing challenges in vehicle manufacturing and aftermarket repair.
Recommended Models:
Preferred (Efficiency): PA-1601F / PA-160F
Reason: 1-hour Safe Drive Away, significantly reducing customer wait time, suitable for busy quick repair shops.
Preferred (High-End/Odorless): PA-145N
Reason: Completely odorless, suitable for luxury cars (such as Mercedes-Benz, BMW, Audi), avoiding complaints caused by residual chemical odors in the vehicle.
Universal (Value for Money): PA-1453
Reason: International best-selling model, no primer required, balanced performance, suitable for most routine repairs.
Scenario Characteristics: Large glass area and high weight, requiring extremely high structural strength and weather resistance; typically applied outdoors or semi-outdoors, with slightly lower sensitivity to odors than passenger cars, but requiring no sagging.
Recommended Models: First Choice (High Strength): PA-1601 / PA-1453
Reasons: High-viscosity formula, no sagging during vertical application, capable of supporting large areas of heavy glass; excellent UV resistance and weather resistance, adaptable to temperature changes during long-distance transportation.
Alternative: PA-1451 (if a longer working time is required).
Scenario Characteristics: Extremely stringent odor control (enclosed carriages, high passenger density); extremely high safety standards; typically requires processing in a factory or dedicated maintenance workshop, demanding high resilience to withstand track vibrations.
Recommended Model:
Only Recommended: PA-145N (Odorless Series)
Reason: Specifically designed for enclosed spaces, odorless, meets stringent environmental and health standards for rail transit; up to 400% elongation at break, effectively absorbs high-frequency vibrations during train operation, preventing glass cracking.
Note: Ordinary products with odors are strictly prohibited in this scenario.
Scenario Characteristics: Harsh working conditions (dust, moisture, extreme temperatures); diverse substrates (potentially involving metals, coated glass, ceramics); may require secondary repair.
Recommended Models:
Preferred (All-Round): PA-1453 / PA-1452
Reason: Excellent environmental adaptability (-40℃~+90℃), superior waterproof and sealing performance, suitable for harsh environments in marine and construction machinery.
Repair-Specific: PA-145N
Reason: For old vehicle refurbishment or secondary repair, PA-145N has moderate hardness, making it easy to cut old adhesive without damaging the original paint/coating.
Compatibility Recommendations: In this type of application, it is strongly recommended to use a Primer and Cleaner to ensure absolute adhesion on rough or special substrates.
More Than an Adhesive: A Partnership for Performance
At Chem Pu, we understand that our products are integral to your quality and safety.
Focused Expertise: We dedicate our research to perfecting polyurethane chemistry for automotive applications.
Consistent Quality: Rigorous manufacturing controls ensure every cartridge and sausage delivers reliable performance.
Technical Support: Our team provides application guidance and data to help you select the optimal product for your specific need.
A: The key factors are cure speed, substrate type, and performance requirements.
For fastest assembly/repair with 1-hour drive-away: choose PA-1601F / PA-601F.
For highest strength and versatility across metals/plastics/glass: PA-1801 is ideal (primer required).
For general windshield repair and multi-material bonding without primer: the PA-1450 series (PA-1451, PA-1452, PA-1453) offers balanced performance.
For odor-sensitive environments (e.g., premium vehicle interiors): select PA-145N.
Contact our technical team for personalized recommendations based on your specific process and materials.
A: All Chem Pu windshield adhesives have a 9-month shelf life when stored properly.
Keep sealed in a cool, dry place (recommended: 5–25°C, <50% RH).
Avoid exposure to temperatures above 40°C or humidity over 80% RH, which can shorten product life.
Use cartridges or sausages in the order of receipt to ensure freshness.
A: For optimal results, apply at 5–35°C on clean, dry surfaces.
Low temperatures may slow curing; high temperatures can accelerate it. Ensure substrates are free of frost, moisture, oil, or old sealant residue.
A: Yes, when used correctly.
Wear protective gloves and eye protection.
Ensure adequate ventilation.
If skin contact occurs, wash immediately with soap and water.
Refer to the Safety Data Sheet (SDS) for each product before use.
Our formulations are designed to be low-odor and environmentally responsible.
A: Absolutely.
Technical Data Sheets (TDS) with full specifications are available for download on each product page.
Safety Data Sheets (SDS) are provided upon request or via our support team.
For complex applications or compatibility questions, our technical specialists are available for consultation.
