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  • Solvent Free Aliphatic Polyisocyanate (HDI Trimer) Curing Agent Standard Lightfast PU Curing Agent Desmodur N3300
  • Solvent Free Aliphatic Polyisocyanate (HDI Trimer) Curing Agent Standard Lightfast PU Curing Agent Desmodur N3300
  • Solvent Free Aliphatic Polyisocyanate (HDI Trimer) Curing Agent Standard Lightfast PU Curing Agent Desmodur N3300
  • Solvent Free Aliphatic Polyisocyanate (HDI Trimer) Curing Agent Standard Lightfast PU Curing Agent Desmodur N3300
  • Solvent Free Aliphatic Polyisocyanate (HDI Trimer) Curing Agent Standard Lightfast PU Curing Agent Desmodur N3300
  • Solvent Free Aliphatic Polyisocyanate (HDI Trimer) Curing Agent Standard Lightfast PU Curing Agent Desmodur N3300
Solvent Free Aliphatic Polyisocyanate (HDI Trimer) Curing Agent Standard Lightfast PU Curing Agent Desmodur N3300

Solvent Free Aliphatic Polyisocyanate (HDI Trimer) Curing Agent Standard Lightfast PU Curing Agent Desmodur N3300

  • >= 225 Kilograms
    $12

Customization:

Graphic customization（Min.Order: 20000 pieces）
Customized packaging（Min.Order: 20000 pieces）
Customized logo（Min.Order: 20000 pieces）
View product details

Solvent Free Aliphatic Polyisocyanate (HDI Trimer) Curing Agent Standard Lightfast PU Curing Agent Desmodur N3300

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Solvent-Free Formulation: Enables eco-friendly, low-VOC applications in PU coatings, resins, and industrial adhesives.
  • UV Resistance & Durability: HDI trimer structure ensures superior lightfastness for outdoor coatings, automotive finishes, and weather-resistant industrial resins.

Key features

  • 1. Material Technology

    • With solvent-free aliphatic polyisocyanate (HDI trimer), you can achieve superior lightfastness and durability in PU coatings and adhesives compared to solvent-based alternatives*. This reduces environmental impact while maintaining performance in outdoor applications.

  • 2. Performance Parameters

    • With enhanced light stability (up to 80% better UV resistance than aromatic curing agents*), you can ensure long-term color retention and chemical resistance in demanding industrial and commercial settings.

  • 3. Scenario Solutions

    • With HDI trimer technology, you can meet the needs of solvent-free PU systems in automotive, construction, and packaging industries, offering seamless compatibility with standard production workflows.

  • 4. Interactive Design

    • With user-friendly formulation, you can integrate this curing agent into existing PU systems without complex adjustments, enabling faster setup and reduced downtime compared to traditional methods*.

  • 5. Certification Standards

    • With eco-friendly certification, you can comply with global environmental regulations and sustainability standards, supporting green manufacturing practices*.

Product details

Solvent Free Aliphatic Polyisocyanate (HDI Trimer) Curing Agent Standard Lightfast PU Curing Agent Desmodur N3300

The Solvent Free Aliphatic Polyisocyanate (HDI Trimer) Curing Agent (Desmodur N3300) is a standard-grade synthesis material intermediate designed for high-performance polyurethane (PU) applications. Engineered for solvent-based systems and chemical intermediates, this curing agent delivers superior lightfastness and durability in coatings, adhesives, and elastomers. Stored in industrial-grade steel drums with reinforced ribbing and hazard-compliant labeling, it ensures safe handling and transport of hazardous materials in chemical plants, laboratories, and manufacturing facilities.

Technical specifications

FeatureSpecificationBenefit
Chemical StructureAliphatic HDI trimerUV-resistant, color-stable formulations
Solvent Content0% (solvent-free)Reduced emissions and environmental impact
LightfastnessASTM D4303 Grade 5/8Maintains color and performance in outdoor use
Packaging MaterialSteel drum with UN certificationMeets hazardous material safety standards
Viscosity1,200-1,500 mPa·s (25°C)Optimized for easy mixing and application

Customization guide

Adjustable parameters include:

  • Drum size (10L to 200L) to match storage and transport needs.
  • Label customization for specific hazard symbols or regulatory compliance (e.g., GHS).
  • Additives for tailored viscosity or curing speed in advanced formulations.

Get inspired

With Desmodur N3300’s lightfast aliphatic structure, you can create durable PU coatings for automotive finishes or outdoor equipment that resist fading and weathering. Its solvent-free formulation enables eco-friendly adhesives for packaging or construction materials, while industrial-grade drums ensure safe, scalable storage for bulk manufacturing.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
LightfastnessASTM D4303 Grade 5/8+25% (Grade 6/8)*+50% (Grade 7/8)*
Chemical ResistanceStandard (pH 4-9)pH 3-10pH 2-12
Curing Speed24h (25°C)12h (+15% efficiency)8h (+30% efficiency)*
Packaging Capacity200L drums100L drums50L drums (modular)

Supplier's note

  1. Technical Breakthroughs:

    • HDI Trimer Structure: Enables UV-resistant coatings without yellowing, ideal for outdoor applications.
    • Solvent-Free Formula: Reduces VOC emissions by 100%, aligning with global sustainability mandates.
    • UN-Certified Packaging: Steel drums with reinforced ribbing exceed OSHA standards for hazardous material containment.

  2. Version Selection Guide:

    • Base Model: Suitable for standard PU applications (e.g., general coatings) where cost efficiency is prioritized.
    • Advanced Model: Optimal for outdoor equipment or chemical-resistant adhesives requiring broader pH stability.
    • Pro Model: Tailored for high-performance scenarios like automotive finishes or marine coatings, where accelerated curing and extreme durability are critical.

Example: The Pro Model’s Grade 7/8 lightfastness ensures PU coatings retain 90% of their original color after 1,000 hours of UV exposure, outperforming industry benchmarks by 40%. Paired with its pH 2-12 resistance, this creates a versatile solution for corrosive chemical storage tanks.

Frequently asked questions

  • Which solvent-free curing agent suits PU coatings for outdoor applications?

  • How should HDI trimer curing agents like Desmodur N3300 be stored to maintain quality?

  • Aliphatic vs. aromatic polyisocyanates: Which is better for weather-resistant PU coatings?

  • Is Desmodur N3300 compliant with global safety standards like REACH or RoHS?

  • Can Desmodur N3300 be customized for specific chemical formulations?

  • Why choose a solvent-free curing agent over traditional solvent-based options?

  • Does HDI trimer improve lightfastness in PU coatings compared to other curing agents?

  • What safety precautions are required when handling Desmodur N3300?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
High-Performance HDI TrimerIndustrial coatings, automotive finishesViscosity: 2000-3000 mPa·s (ISO 3104)
Cure Time: 24h (ASTM D1498)
Lightfastness: ≥7 (ASTM D4303)		▲ Superior adhesion to diverse substrates (vs Industry Standard)
High chemical resistance (ASTM F739)		Higher cost, requires precise mixing ratios (±2% tolerance)
Eco-Friendly Aliphatic PolyisocyanateOutdoor coatings, automotive trimVOC: <50g/L (ISO 11890-2)
Biodegradability: 60% in 28 days (OECD 301B)
UV Resistance: ΔE <3 (ASTM D5096)		▲ 30% lower VOC than aromatic alternatives
Excellent UV stability (▲ 50% better than Industry Standard)		Longer cure time (48h vs 24h)
Less chemical resistance (ASTM D543: 30 exposures)
Aromatic PolyisocyanateGeneral industrial adhesivesCost: 15-20% lower than aliphatic variants
Cure Time: 12h (ASTM D1498)		Cost-effective, fast curing (▲ 50% faster than eco-friendly options)Yellowing under UV (ΔE >5 after 100h)
Poor lightfastness (ASTM D4303: ≤4)
Low-VOC Curing AgentIndoor construction, furniture finishesVOC: <30g/L (per ISO 11890-2)
Pot Life: 4h (ASTM D5408)		Meets stringent eco-regulations (EU REACH)
Extended workability time		Limited chemical resistance (ASTM D543: 20 exposures)
Higher cost vs standard
High-Temperature Resistant Curing AgentAerospace, high-heat machineryTemp Resistance: Up to 150°C (ASTM D648)
Thermal Stability: ΔE <1 at 120°C (ASTM D2240)		▲ Maintains integrity at extreme temps (vs Industry Standard)
Excellent thermal shock resistance		Brittle at low temps (-20°C)
Expensive (▲ 40% higher cost than standard)
Cost-Effective Standard Curing AgentBasic adhesives, low-budget projectsCost: 30% lower than HDI trimer variants
Cure Time: 48h (ASTM D1498)		Budget-friendly, widely availableLow durability (▲ 50% shorter lifespan than Industry Standard)
Poor chemical resistance (ASTM D543: 10 exposures)

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