H-5115 Modified HMDI Isocyanate Curing Agent

H-5110 is a solvent-free, high-purity modified HMDI (hydrogenated MDI) based polyisocyanate curing agent. This premium clear liquid is engineered as a core component for two-component polyurea and polyurethane systems that demand extreme durability, chemical resistance, and weatherability.

Technical Advantages: Why Choose H-5115 HMDI Curing Agent?

Technical procurement and R&D teams value H-5115 for its distinct chemical profile:

1. Extended Workability (100-Minute Pot Life)

One of the primary challenges in polyurea application is rapid gelation. H-5115 provides a moderate NCO content (4.6-5.4%), which translates to a generous 100-minute pot life. This allows for easier manual application, superior leveling, and consistent film quality on large-scale projects.

2. Enhanced Mechanical & Chemical Resilience

Based on hydrogenated MDI (HMDI) chemistry, H-5115 imparts exceptional mechanical strength and toughness to the cured film. It offers superior resistance to chemical attack and environmental stressors, ensuring that industrial assets remain protected in aggressive media.

3. Formulation Versatility

H-5115 offers excellent compatibility for blending requirements. Whether you are formulating high-solid-content waterproof clear varnishes or pigmented topcoats, this curing agent provides the necessary cross-linking density to achieve a high-gloss, high-build finish.

4. Zero-VOC Compliance

With a solids content of ≥ 97%, H-5115 is a key material for developing eco-friendly, ultra-low VOC coatings. It minimizes environmental impact while boosting the application efficiency of the entire coating system.

Specifications

Applications

The unique molecular engineering of H-5115 modified HMDI allows it to serve as a high-performance hardener in diverse environments where standard HDI trimers may lack the required mechanical toughness or chemical shield:

• Premium Interior Waterproofing: Highly recommended for kitchen and bathroom floor repairs. When paired with our polyaspartic resins, it creates a 1:1 or specific ratio high-solid clear varnish. This system is ideal for tile-preserving waterproofing, allowing for effective sealing without the noise and cost of demolition.

• Heavy-Duty Protective Coatings: Acts as a superior topcoat for industrial waterproofing projects, including swimming pools, hydropower dams, and water parks. It provides a dense cross-linked barrier that withstands constant water immersion and high-pressure environments.

• High-End Architectural Finishes: Used on exterior walls and roofs to enhance film build, gloss, and surface hardness. Its HMDI backbone ensures the coating remains elastic yet tough enough to resist environmental impact and urban pollution.

• Specialized Industrial Materials: Commonly formulated into high-performance polyurethane coatings, structural adhesives, and elastomers, providing excellent mechanical property retention and resistance to aggressive chemical media.

Packaging, Storage, and Safety Standards

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

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

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

• Safety Compliance: This product is reactive. Please refer to the H-5115 Material Safety Data Sheet (MSDS) for detailed health, safety, and environmental protection protocols before use.