LR-5000 Polyaspastic Resin

LR-5000 is a solvent-free, secondary amine-functional polyaspartic resin specifically engineered for high-performance aliphatic coating systems. With a bis-secondary amine molecular structure, it reacts with -NCO functional groups to form 100% solid-content, eco-friendly coatings characterized by rapid drying kinetics and exceptional mechanical resistance.

For technical formulators and R&D managers, LR-5000 is a benchmark material for reducing production bottlenecks. It delivers a 20-minute surface-dry time without compromising on film fullness or aesthetic quality.

Key Technical Features and Performance Data

Technical professionals select LR-5000 based on its predictable performance in demanding industrial and outdoor environments:

1. Accelerated Production Efficiency

LR-5000 exhibits high reactivity. When cross-linked with HDI trimers, it can achieve surface drying in just 20 minutes. This allows for significantly faster handling times in automotive refinishing, wood processing, and infrastructure maintenance, leading to lower operational costs.

2. Verified 4,000-Hour UV Stability

Durability is confirmed via the QUVA testing protocol. After 4,000 hours of continuous accelerated weathering, LR-5000 based coatings retain over 95% of their initial performance. The film is highly resistant to yellowing, chalking, and environmental degradation, even under intense solar radiation.

3. Thermal Stability and Crack Resistance (-35°C)

Mechanical flexibility is a core attribute. LR-5000 remains completely crack-free at temperatures as low as -35°C. This enables the coating to absorb the stresses caused by extreme day-night temperature fluctuations and thermal expansion of the underlying substrate.

4. Precision Viscosity for High-Build Coatings

With a viscosity of 400-1200 mPa·s (@ 25°C), LR-5000 enables the formulation of low-VOC, high-solids coatings that exhibit excellent leveling, high gloss, and superior substrate wetting.

Typical Product Specifications (TDS Analysis)

Ruqinba Group ensures batch-to-batch consistency through standardized synthesis and rigorous quality control (QC):

Strategic Industrial Applications: Engineering Versatility

The molecular architecture of LR-5000 polyaspartic resin is optimized for industries where durability and aesthetic performance must meet high-speed production requirements:

• High-End Paints & OEM: Specifically designed for automotive topcoats, interior paints, and premium wood coatings. It significantly enhances film fullness, gloss, and hardness while accelerating the drying cycle to improve factory throughput.

• Industrial Anti-Corrosion: A reliable component for formulating anti-corrosion primers and finish paints for agricultural machinery, engineering equipment, and heavy-duty steel structures.

• Architectural Flooring Systems: Ideal for factory floors, residential waterproof coatings, parking garage decks, and basketball courts. It provides a high-load, abrasion-resistant surface that supports rapid return-to-service.

• Renewable Energy Sector: Specifically utilized for wind power generation tower surfaces to ensure long-term UV protection and low maintenance in remote, high-exposure environments.

• Specialty Landscape Coatings: Provides a durable, weather-resistant protective layer for foam-based sculptures and outdoor architectural landscapes.

Technical Formulation Flexibility

For formulators and R&D specialists, LR-5000 acts as a versatile reactive matrix:

Adjustable Kinetics: LR-5000 can be used as a standalone resin or blended with other models such as LR-1520, LR-1420, or hydroxyl-functional acrylic resins. This allows formulators to precisely calibrate the pot life (activation period) and drying curve based on localized temperature and humidity.

Mechanical Customization:

1. Rigid Systems: Combined with HDI trimers or dimers, it produces rigid coatings with a pencil hardness of 2H.

2. Elastomeric Systems: When paired with flexible curing agents, it yields high-elongation elastomeric membranes capable of bridging micro-cracks in dynamic substrates.

Application Consistency: It is fully compatible with high-pressure impingement spray equipment, as well as manual application via brush, roller, or trowel.

Packaging, Storage, and Handling

• Standard Packaging: Available in high-quality 200 KG UN-certified steel drums.

• Shelf Life: 12 months from the date of manufacture when stored in original, unopened, and undamaged containers.

• Storage Conditions: Maintain at temperatures ≤30°C in a cool, dry, well-ventilated area away from direct heat or open flame.

• Safety Notice: This product contains reactive components. Please refer to the LR-5000 MSDS for detailed health, safety, and environmental guidance before use.

Technical Consultation and Sample Requests

Ruqinba Group is committed to supporting every product innovation. If you require further technical parameters or wish to evaluate the performance of LR-5000 in your formulation, contact our technical team today.

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