SW ADHESIVE
One-Component Polyurethane Joint Sealant
Moisture-curing polyurethane for construction joints, curtain walls, and industrial sealing.
Highlights
- Moisture-curing, single-component system
- Skin forms in 2-4 hours, full cure in weeks
- Elongation at break exceeds 200%
- Movement capability ±20% of joint width
- Adhesion to concrete, glass, metal without primer
- EN 14189 and ASTM C920 compliant
- Low VOC indoor air quality safe
- Suitable for facade and equipment sealing
Specifications
| Skin Formation | 2-4 hours |
|---|---|
| Elongation at Break | 200%+ |
| Movement Capability | ±20% joint width |
| Cure Rate | 2 mm per week depth |
| Certifications | EN 14189, ASTM C920 |
Product Detail
A single-component, moisture-curing polyurethane sealant engineered for construction joints in facades and building envelopes. Skin forms in 2–4 hours; full cure proceeds at 2 mm depth per week, accommodating ±20% joint movement with primerless adhesion to concrete, glass, and metal.
What This Sealant Is Built For
This one-component polyurethane joint sealant is designed for sealing movement joints and static joints in building envelope and facade applications. Because it cures by reacting with ambient moisture, no onsite mixing is required — the sealant is ready to apply directly from standard cartridges or bulk packaging. It adheres to concrete, glass, and metal substrates without a primer, reducing labor steps and material handling on the jobsite.
The cured seal remains flexible, with a movement capability rated at ±20% of joint width and elongation at break exceeding 200%. This allows the sealant to absorb thermal cycling, substrate movement, and structural settlement without losing adhesion or splitting. The product is formulated as low VOC, making it suitable for indoor air quality–sensitive environments as well as exterior sealing.
Key Specifications
Where to Use It — and Where to Verify First
Verified Application Areas
- Facade and curtain-wall joint sealing
- Concrete panel connection joints
- Glass-to-metal and metal-to-metal frame joints
- Building envelope perimeter sealing
- Equipment sealing where flexible joint accommodation is required
Confirm Before Specifying
- Compatibility with plastics, EPDM, or coated substrates — request adhesion testing data
- Long-term UV exposure color stability requirements
- Traffic-rated horizontal joint performance
- Immersed or continuously wet conditions
- Paintability with specific topcoat systems
Cure Schedule and Installation Guidance
The sealant skins over in 2–4 hours under ambient conditions. Beneath the skin, cure progresses at approximately 2 mm of depth per week. For a standard 10 mm joint depth, plan for roughly 5 weeks of cure time before the seal reaches full mechanical performance. Joint width, ambient humidity, and temperature all affect the actual rate — high humidity accelerates cure; cold or dry conditions slow it.
| Installation Factor | Guidance |
|---|---|
| Substrate preparation | Clean, dry, dust-free surface; no primer required for concrete, glass, or metal |
| Joint design | Design joint width to stay within ±20% movement capability; use backer rod for depth control |
| Tooling window | Tool before skin forms (within 2–4 hours of application) |
| Full cure estimate | ~5 weeks for 10 mm depth at 2 mm/week; verify for project-specific joint geometry |
| Application temperature | Ambient cure; confirm acceptable range for your climate conditions |
Buyer FAQ
Does this sealant comply with international construction standards?
Yes. The product is specified as compliant with EN 14189 and ASTM C920 per the manufacturer's product data.ata.
How long until the sealant is fully cured?
Skin formation takes 2–4 hours. Full cure proceeds at 2 mm depth per week. A 10 mm-deep joint will need approximately 5 weeks to fully cure. Actual time depends on ambient humidity, temperature, and joint geometry.
Is a primer required for concrete, glass, or metal substrates?
No primer is required for adhesion to concrete, glass, and metal per the product specification. For other substrates, request adhesion test data before specifying.
What movement capability does this sealant accommodate?
The rated movement capability is ±20% of joint width, with elongation at break exceeding 200%.
Is this product suitable for indoor use?
The sealant is formulated as low VOC and is specified as safe for indoor air quality requirements.
What packaging and minimum order quantity are available?
Packaging options and MOQ are available upon request. Standard cartridges and bulk packaging can be arranged depending on project volume.
Can I order custom colors?
The standard product color is neutral gray. Custom color requests can be discussed — please share your project requirements.
Is the product certified by the manufacturer's facility?ity?
The manufacturer, TIANJIN SHENGWANG ELECTRONIC CHEMICAL PLANT (SW ADHESIVE), holds ISO 9001:2015 certification for quality management systems. The product itself is specified as compliant with EN 14189 and ASTM C920.
Manufacturer Profile
Manufactured by TIANJIN SHENGWANG ELECTRONIC CHEMICAL PLANT (SW ADHESIVE) — an industrial adhesives and electronic chemical products manufacturer based in Tianjin, China, operating since 1993. The company holds ISO 9001:2015 certification for quality management and maintains in-house testing capabilities including viscosity meters, tensile strength testers, and environmental chambers for performance validation. Production capacity supports 20,000 metric tons annual output across adhesive product lines, with export packaging supporting IBC containers, drums, and custom packaging for global B2B orders.
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