PA-1151 Car Body Seam Sealant – Paintable, Polishable, Durable
As a specialized car body sealant manufacturer, CHEMPU formulates PA-1151 polyurethane joint sealer for vehicle weld seams, overlapping sheet metals, van body panels, and refrigerated containers. Fully paintable once skinned, delivering long-term elasticity without cracking.
PA-1151 Car Body Seam Sealant Specifications
Complete laboratory parameters from CHEMPU Technical Data Sheet (TDS). Specially formulated as an elastic body seam sealant rather than a rigid glass adhesive.
PA-1151 Joint Sealer · 310ml Cartridge / 400ml / 600ml Sausage
| Property / Test Item | Technical Specification (TDS Verified) |
|---|---|
| Appearance | White / Gray / Black smooth paste |
| Paintability | Paintable & polishable after skin formation |
| Density (g/cm³) | 1.30 ± 0.05 |
| Tack Free Time | 60 – 180 minutes (23°C, 50% RH) |
| Curing Speed | 3 – 5 mm / 24 hours |
| Hardness (Shore A) | 30 – 45 (Flexible elastic seam matrix) |
| Tensile Strength | ≥ 1.5 MPa |
| Elongation at Break | ≥ 350% |
| Tear Strength | ≥ 6.0 N/mm |
| Non-volatile Content | ≥ 95% |
| Application Temperature | +5°C to +35°C |
| Service Temperature | −40°C to +90°C |
| Shelf Life | 9 Months (dry, 5°C ~ 25°C) |
Seam Sealing for Vehicles, Vans & Containers
Engineered specifically for automobile body shops, commercial trailer fabricators, and marine manufacturers requiring permanent water sealing and corrosion prevention.
Automotive Weld Seams & Lap Joints
Covers bare welding beads, door skin hems, trunk gutters, and chassis underbody sheet metal joints. PA-1151 isolates metal from moisture, road salts, and dirt to permanently halt galvanic rust.
Commercial Van & Truck Bodies
Delivery vans, ambulance box conversions, and semi-trailer bodies experience high flex and thermal expansion. PA-1151's soft 30–45 Shore A elasticity accommodates differential expansion between aluminum and steel.
Refrigerated Containers & Rail Cars
Intermodal reefer containers and passenger rail coaches require watertight panel seals with excellent resistance to weathering, diesel fumes, and UV exposure between −40°C and +90°C.
Paintable & Polishable – Finish Like Factory
Unlike ordinary silicone sealers that repel car paint, PA-1151 is 100% paintable and sandable once cured. Body repair shops can seamlessly apply waterborne or solvent automotive topcoats without paint wrinkling or pinholing.
Excellent Paint Compatibility
Compatible with standard 2K polyurethane, acrylic, and epoxy refinish automotive coatings without post-cure discoloration.
Easy Tooling & Smooth Scraping
Generous 60–180 minute skinning time gives body repair technicians sufficient time to spatula-tool and feather seam edges cleanly.
Soft Shore A 30–45 Cushion
Absorbs differential thermal contraction between different metals (e.g. steel body to aluminum roof gussets) without seam splitting.
Long-Term Anti-Corrosion Barrier
Completely seals welded joints against water ingress, air moisture, and road salts, stopping hidden rust formation inside wheel wells.
Body Shop Grade from an ISO-Certified Factory
As a premier car body sealant manufacturer in China, CHEMPU operates 5 automated chemical manufacturing plants with over 500,000 tons yearly capacity. Trusted by leading global automotive assemblers, our PA-1151 complies with ISO 9001:2015 and ISO 14001:2004 international quality benchmarks.
Car Body Sealant FAQ
Technical inquiries regarding car body seam sealant applications, paintability, and factory wholesale options.
What is car body sealant used for?
Can PA-1151 be painted?
Is PA-1151 a weld seam sealer?
What materials does PA-1151 bond?
Is PA-1151 weather resistant?
Can I use PA-1151 for van body sealing?
What is the hardness of PA-1151?
Can I get car body sealant wholesale from the manufacturer?
Related Sealing & Bonding Solutions
PA-1453 (Flagship Model)
Flagship primerless polyurethane adhesive with 4-hour drive-away time, perfectly pairing with PA-1151 for full vehicle glass and body repairs.
PA-1451 (Multi-Purpose)
Versatile polyurethane adhesive for auto glass installation and general vehicle body bonding across multiple substrates.
PA-1452 (Economical)
Cost-effective polyurethane sealant engineered for commercial bus fleets and price-sensitive automotive replacement markets.
Source Car Body Sealant Directly from the Manufacturer
Contact CHEMPU today to request free product samples of PA-1151, download the technical data sheet, or receive a factory-direct OEM quote for your brand.
