LR-1330 Polyether-Based Polyaspartic Resin

LR-1330 is a solvent-free, low-viscosity, polyether-modified polyaspartic resin containing a secondary amine structure. Specifically engineered for high-performance coating systems, it is designed to cross-link with aliphatic polyisocyanates to form 100% solids, eco-friendly coatings.

For technical formulators, LR-1330 offers a strategic balance between long induction times and superior aesthetic properties, making it a benchmark material for large-scale industrial and high-end decorative applications.

Technical Performance Highlights

Technical personnel and R&D managers specify LR-1330 based on its unique rheological and mechanical profile:

1. Extended Workability and Leveling

Unlike standard polyaspartic resins, LR-1330 provides an extended pot life and longer curing window. This allows technical applicators to manage large-area projects without the risk of premature gelation, ensuring exceptional self-leveling and a defect-free finish.

2. High Film Fullness and Mirror Gloss

The polyether backbone endows the cured film with outstanding "fullness" (body) and depth. Whether used as a clear varnish or a pigmented topcoat, LR-1330 delivers a premium high-gloss appearance that rivals traditional multi-coat systems in a single high-build layer.

3. Extreme Temperature Resilience (-35°C)

Mechanical integrity is maintained across extreme temperature gradients. Coatings formulated with LR-1330 remain completely crack-free at temperatures as low as -35°C, effectively absorbing the stresses caused by the thermal expansion and contraction of cement boards and metallic substrates.

4. Verified 4,000-Hour Weathering Resistance

Durability is confirmed via the QUV-A testing protocol. After 4,000 hours of continuous exposure, the material retains over 95% of its original performance properties. It offers industry-leading resistance to yellowing, chalking, and degradation in high-UV environments.

5. Superior Abrasion Defense

LR-1330 provides high surface toughness with a wear loss of ≤20 mg(500r/750g load), making it suitable for environments subjected to frequent mechanical stress and friction.

Product Specifications

Every batch of LR-1330 is manufactured under strict quality control standards to ensure batch-to-batch consistency:

≤≤

Strategic Application Scenarios

The unique polyether modification of LR-1330 polyaspartic resin makes it a versatile matrix for industries requiring both aesthetic perfection and high-build protection:

1. High-End Automotive & Premium Wood Finishes

LR-1330 is optimized for automotive refinish and premium wood coatings. In these sectors, it significantly improves film build and mirror-like fullness. Its refined chemical structure enhances surface hardness and reduces the through-dry time for industrial production lines, ensuring a faster return-to-service without compromising on gloss.

2. Engineering Waterproofing & Heavy-Duty Protection

Ideal for formulating anti-corrosive and moisture-resistant topcoats.

• Infrastructure: Reliable protection for swimming pools, steel structures, and petroleum pipelines.

• Architectural: Effective as a high-build topcoat for roofs and exterior walls, where it provides a dense barrier against corrosive ions and hydrostatic pressure.

3. Resilient Flooring Systems

Specifically recommended for industrial factory floors, basketball courts, and residential waterproof flooring. Its extended workability makes it the ideal choice for large-area self-leveling applications. It also serves as a protective, UV-stable topcoat for decorative foam-based landscape sculptures.

4. Wind Energy Infrastructure

Used in the production of gel coats, specialized putties, and protective topcoats for wind turbine blades. LR-1330 ensures the blades maintain structural integrity and erosion resistance under high-velocity wind and intense UV exposure.

Technical Formulation & Blending Potential

For R&D chemists, LR-1330 acts as a highly compatible reactive component:

• Customized Pot Life: It can be used as a standalone resin or blended with amine-functional resins such as LR-1520 or LR-1420. This allows formulators to precisely calibrate the induction period and drying curve based on the specific temperature and humidity of the project site.

• Tailored Mechanical Profiles:

  • Elastic Formulations: When combined with flexible curing agents, it produces elastomeric materials with superior elongation and vibration damping.

  • Rigid Topcoats: When paired with rigid curing agents or HDI trimers/dimers, it produces a 2H hardness film that resists mechanical impact and surface scratching.

• Broad Compatibility: Fully compatible with most hydroxyl-functional acrylic resins and cellulose acetate butyrate (CAB).

Packaging, Storage & Reliable Supply

Ruqinba Group provides standardized logistics support for our global industrial partners:

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

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

• Storage Environment: Maintain in a cool, dry area at temperatures ≤ 30°C. Keep away from heat sources and open flames