Self-Leveling Sealants – High Flexibility for Dynamic Joints & Infrastructure
CHEM PU provides advanced self-leveling sealant solutions designed for demanding applications where movement, weather, and heavy loads are constant challenges. Our polyurethane and silicone-based formulations ensure long-lasting sealing, crack resistance, and ease of application in infrastructure, industrial, and marine environments.
Why Choose CHEM PU Self-Leveling Sealants?
✅ High Movement Capacity – Up to 800% elongation to absorb vibration, expansion, and settlement
✅ Self-Leveling & Non-Sag – Smooth finish on horizontal surfaces, no tooling required
✅ Chemical & Weather Resistant – Withstands fuels, oils, acids, UV exposure, and temperature extremes
✅ Easy to Apply – One-component formulations, no mixing, suitable for wide joints
✅ Durable & Repairable – Compatible with old sealant, allowing for easy maintenance
Key Application Areas
🛣️ Roads & Infrastructure
Expansion joints in roads, airport runways, bridges, and tunnels
Sealing of concrete pavements, squares, and parking structures
Waterproofing for underground garages, basements, and retaining walls
🛳️ Marine & Offshore
Deck caulking, window sealing, and waterproofing on ships and boats
Hull and cabin joint sealing in high-speed vessels and workboats
Offshore platform and dock expansion joints
🏗️ Industrial & Construction
Sealing of epoxy and painted industrial floors
Chemical plant and refinery leak sealing
High-rise building curtain wall and window perimeter joints
Swimming pools, dams, and water containment structures
Our Self-Leveling Sealant Series
A high-elasticity, solvent-free polyurethane sealant with exceptional displacement capacity and chemical resistance.
800%+ elongation – withstands extreme joint movement without cracking
Self-leveling & easy flow – ideal for horizontal and wide joint applications
Resistant to water, oil, acid, and alkali – suitable for industrial and chemical environments
Excellent adhesion to concrete, metal, PVC, ceramics, glass, and more
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A UV-resistant, fuel-proof silicone sealant with outstanding weather and temperature performance.
UV, fuel, heat, and humidity resistant – perfect for outdoor and marine use
Strong tear resistance & airtight sealing – reliable in high-movement applications
Low-temperature flexibility – performs in cold climates and temperature-cycling environments
Available in single or dual component, black/gray/white colors
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Ready to Seal with Confidence?
Whether you’re sealing a runway, a ship deck, or an industrial floor—CHEM PU has the right self-leveling sealant for your project.
📧 Contact Us for Samples, Technical Support, or a Quote
A: SL-90 is a polyurethane-based sealant with ultra-high elasticity (800%+ elongation), excellent chemical resistance, and ideal for roads, industrial floors, and chemical environments. SL-003 is a silicone-based sealant with superior UV, fuel, and temperature resistance, making it perfect for airport runways, marine applications, and exterior joints.
A: Self-leveling sealants are designed for horizontal or slightly sloped surfaces. For vertical joints, we recommend using non-sag sealants from our construction or automotive series.
A: Self-leveling sealants are ideal for joints up to 50mm wide. For wider joints, please consult our technical team for substrate preparation and application recommendations.
A: Surfaces must be clean, dry, and free of dust, oil, grease, rust, old sealant residue, and loose particles. Use mechanical cleaning (grinding, brushing) or solvent wiping if necessary. Proper preparation ensures maximum adhesion.
A: – Skin-free time: 2–4 hours
Full cure: 24–72 hours depending on temperature and humidity
Light foot traffic: After 12 hours
Heavy/vehicle traffic: After full cure (3–7 days)
A: Ideal application temperature is 5–35°C. Avoid application on wet surfaces or during rain. Low temperatures may slow curing; ensure substrates are dry and above 5°C.
