PA-1801 Structural Automotive Adhesive – Engineered for OEM Strength
As a leading structural automotive adhesive manufacturer, CHEMPU formulates PA-1801 for load-bearing vehicle body assembly. Delivering exceptional ≥8.0 MPa tensile strength, 20–25 N/mm tear resistance, and >400% elongation, it bonds metals, composite FRP roofs, exterior plastics, and automotive glass in high-stress vehicle manufacturing lines.
PA-1801 Structural Automotive Adhesive Specifications
Complete laboratory parameters from CHEMPU Technical Data Sheet (TDS). High tensile strength and extreme tear resistance guarantee maximum structural body stiffness.
PA-1801 Structural Grade · 310ml Cartridge / 400ml / 600ml Sausage
| Property / Test Item | Technical Specification (TDS Verified) |
|---|---|
| Appearance | Black homogeneous smooth paste |
| Density (g/cm³) | 1.25 ± 0.05 |
| Tack Free Time | 10 – 40 minutes (23°C, 50% RH) |
| Curing Speed | 3.0 mm / 24 hours |
| Tensile Strength | ≥ 8.0 MPa (Ultra-high structural cohesion) |
| Lap Shear Strength | ≥ 4.5 MPa |
| Tear Strength | 20 – 25 N/mm (Maximum tear resistance) |
| Elongation at Break | > 400% (High dynamic shock absorption) |
| Hardness (Shore A) | 60 ± 5 |
| Non-volatile Content | ≥ 98% |
| Application Temperature | +5°C to +35°C |
| Service Temperature | −40°C to +90°C |
| Shelf Life | 9 Months (dry, 5°C ~ 25°C) |
Structural Bonding for Metal, Plastic & Glass
Engineered for automotive OEM assembly lines, commercial vehicle coachbuilders, and specialty vehicle converters requiring high load-bearing structural integrity across dissimilar materials.
Composite FRP Roofs & Side Panels
Bonds fiberglass reinforced plastic (FRP) roof caps and side skins to steel chassis frames in RVs, ambulances, and refrigerated trailers. Eliminates mechanical rivets and prevents stress-point metal fatigue.
Exterior Plastics & Front Fascia Modules
Bonds automotive ABS, polycarbonate, and SMC front grille trims, spoiler wings, and aerodynamic body kits to painted car bodies. Fully paintable and sandable once cured to achieve smooth OEM body lines.
High-Stress Commercial Vehicle Glazing
Large bus windscreens and high-speed rail locomotive cabin glass undergo severe dynamic wind buffering and body twist. PA-1801's 20–25 N/mm tear resistance guarantees glass retention under extreme highway vibration.
Ultra-High Strength for Load-Bearing Bonding
When vehicle chassis twist over uneven terrain or undergo severe collision deceleration, ordinary adhesives fail via tear propagation. PA-1801 achieves an outstanding 20–25 N/mm tear resistance—the highest in CHEMPU's automotive lineup.
| Model / Grade | Tensile Strength | Tear Strength | Primary Role |
|---|---|---|---|
| PA-1801 (Structural) | ≥ 8.0 MPa | 20 – 25 N/mm | Heavy Load-Bearing & Body Shell |
| PA-1453 (Flagship) | ≥ 4.5 MPa | ≥ 6.0 N/mm | Standard Windscreen Glazing |
| PA-1452 (Economical) | ≥ 3.5 MPa | ≥ 6.0 N/mm | Budget Fleet Replacement |
Superior Torsional Rigidity
Reinforces overall vehicle body stiffness by up to 25%, improving dynamic handling and eliminating squeaks and rattles.
Paintable & Polishable Surface
Ideal for bodywork exterior joints, allowing body shops to sand, prime, and coat seams without paint cracking.
Resistant to Extreme Mechanical Strain
Elongation exceeding 400% absorbs structural impact energy without catastrophic bond-line cleavage.
OEM-Grade Quality from an ISO-Certified Factory
As one of China's Top 5 automotive adhesive manufacturers, CHEMPU operates 5 automated chemical manufacturing plants with over 500,000 tons yearly output. Serving premier glass giants Fuyao and Xinyi, our PA-1801 complies with ISO 9001:2015 and ISO 14001:2004 global standards.
Structural Automotive Adhesive FAQ
Common technical questions regarding load-bearing structural adhesives, primer requirements, and OEM volume supply.
What is structural automotive adhesive?
Does PA-1801 require primer?
What materials can PA-1801 bond?
What is the tensile strength of PA-1801?
Can PA-1801 be painted?
Is PA-1801 suitable for OEM production?
How does PA-1801 compare to other PA adhesives?
Can I get PA-1801 wholesale for production?
Related Structural & Sealing Products
PA-1453 (Flagship Model)
Premium primerless polyurethane adhesive with 4.5 MPa tensile strength. The industry benchmark for direct automotive glass replacement.
PA-160N (Ultra No Sag)
High viscosity polyurethane adhesive designed for vertical and overhead glass installations without mechanical clamping slippage.
PA-1151 (Car Body Seam Sealant)
Paintable and polishable flexible sealant engineered for vehicle weld seams, overlap sheet metals, and container panels.
Partner with a Leading Structural Automotive Adhesive Manufacturer
Contact CHEMPU today to request free product samples of PA-1801, download the technical data sheet, or receive a factory-direct OEM quote for your production line.
