Hindered Amine Light Stabilizers (HALS)
UV Stabilizer Advanced
UV Stabilizers

Hindered Amine Light Stabilizers (HALS)

Advanced UV stabilizers delivering superior long-term protection against photo-oxidative degradation with exceptional performance in demanding outdoor applications. Essential for polymer applications requiring extended durability and UV resistance.

  • Superior UV Protection
  • Long-Term Stability
  • Photo-Oxidative Protection
  • Outdoor Durability
  • Advanced Technology
  • Premium Performance
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Technical Specifications

Product Type: Hindered Amine Light Stabilizers (HALS)
HALS Types: Monomeric, oligomeric, polymeric
Molecular Weight: 200-4000 g/mol
Melting Point: 80-160°C
Thermal Stability: Up to 300°C
Processing Temperature: Up to 280°C
Recommended Loading: 500-5000 ppm
UV Absorption: Minimal (transparent)
Appearance: White to pale yellow powder
Moisture Content: ≤ 0.5%
Solubility: Organic solvents
Volatility: Very low
Radical Scavenging: Excellent efficiency
Compatibility: Most polymer systems
Storage Stability: 24 months (cool, dry conditions)
Packaging: 25kg kraft bags with PE liner

Applications

UV Light Stabilization
Weathering Protection
Automotive Plastics
Building Materials
Agricultural Films
Flexible Packaging
Coatings & Paints
Wood-Plastic Composites
Injection Molding
Outdoor Equipment
Marine Applications
Sports Equipment

Industry-Specific Grades

DRAVYOM offers specialized HALS grades with different molecular weights and functionalities, providing excellent long-term UV protection and durability for various polymer applications.

Low MW Grade (HALS-100)
Type: Monomeric HALS MW: 200-400 g/mol Migration: Possible Application: Thin films
High MW Grade (HALS-200)
Type: Oligomeric HALS MW: 2000-4000 g/mol Migration: Low Application: Thick sections
Food Contact (HALS-300)
Certification: FDA approved Migration: Minimal Safety: Food grade Application: Food packaging
High Temp (HALS-400)
Stability: Enhanced Temperature: Up to 300°C Efficiency: Superior Application: Engineering plastics

Quality Standards

DRAVYOM's HALS are manufactured under stringent quality control protocols, meeting international UV stabilizer standards including ASTM, ISO, and FDA specifications for superior long-term protection.

ISO 9001:2015 Certified Manufacturing
ASTM D4459 Testing Standards
Consistent Stabilizer Activity
Advanced UV Testing
Ultra-High Purity Standards
Batch-to-Batch Consistency
Complete Weathering Testing
UV-Protected Storage

Advanced Chemical Properties & Performance

Hindered Amine Light Stabilizers exhibit exceptional UV protection properties essential for polymer longevity applications. Their nitroxyl radical mechanism and regenerative capability ensure reliable photo-oxidative protection and extended service life in demanding outdoor applications.

Chemical Structure
Active Group: Sterically hindered amine
Mechanism: Nitroxyl radical formation
Molecular Weight: 200-3000 g/mol
Regenerative: Self-regenerating system
Thermal Properties
Processing Temperature: 200-300°C stable
Volatility: Low during processing
Thermal Stability: Excellent long-term
Heat Aging: Superior resistance
UV Protection Properties
UV Wavelength: 290-400 nm protection
Efficiency: Very high at low loadings
Synergism: Excellent with UV absorbers
Long-term: Extended protection duration
Physical Properties
Appearance: White to light yellow powder
Solubility: Organic solvents, polymer melt
Migration: Low surface migration
Compatibility: Most polymer systems
Performance Characteristics
Loading Level: 0.1-1.0% typically effective
Effectiveness: Superior to conventional AO
Color Impact: Minimal color contribution
Processability: Easy incorporation

Performance Characteristics

Detailed performance metrics demonstrate HALS effectiveness in UV protection applications with exceptional long-term stability, superior photo-oxidative resistance, and excellent compatibility across demanding outdoor polymer applications.

UV Protection

Mechanism: Regenerative nitroxyl radical

Self-sustaining protection
Longevity

Duration: 10+ year outdoor service

Extended polymer lifetime
Efficiency

Loading: Effective at 0.1-1.0%

Cost-effective protection
Processing Stability

Temperature: Stable to 300°C

High temperature processing
Synergism

Compatibility: UV absorber synergy

Enhanced protection systems
Migration Resistance

Stability: Low surface migration

Durable protection

Safety Information

HALS require standard industrial safety precautions during handling. Avoid inhalation of dust and direct skin contact. Use appropriate personal protective equipment including dust masks and gloves. Ensure adequate ventilation during processing. Generally considered safe for polymer applications.

Dust Inhalation Protection
Skin Contact Prevention
Ventilation Recommended

Storage & Handling

Store HALS in cool, dry conditions away from direct sunlight and heat sources. Keep containers tightly sealed to prevent moisture absorption and contamination. Protect from UV light during storage. Use clean, dry equipment for handling to maintain product integrity.

UV light protection essential
Moisture exclusion critical
Cool storage required
Sealed container maintenance

Chemical Mechanisms & Reaction Pathways

Hindered amine light stabilizers provide exceptional UV protection through radical scavenging and photostabilization mechanisms, delivering comprehensive polymer protection with excellent thermal stability and long-term performance.

Radical Scavenging

Hindered amine groups capturing free radicals and preventing polymer chain degradation

Enhanced UV protection through continuous radical scavenging cycles
Nitroxide Formation

Regenerative nitroxide radical formation providing long-term stabilization efficacy

Superior performance through self-regenerating stabilization mechanism
Hydroperoxide Decomposition

Hydroperoxide decomposition preventing polymer oxidation and degradation

Enhanced stability through peroxide elimination mechanisms
Synergistic Action

Excellent synergy with UV absorbers providing comprehensive photostabilization

Enhanced performance through multi-mechanism UV protection

Regulatory Compliance & Documentation

Comprehensive regulatory compliance ensures global UV stabilizer applications with complete documentation packages supporting international polymer protection, automotive, and outdoor application standards.

FDA Approval

Food and Drug Administration indirect food contact application approval

EU Plastics

European Union plastic food contact regulation compliance

REACH Registration

European chemical regulation compliance with safety assessments

BfR Recommendations

German Federal Institute for Risk Assessment food contact approval

Technical Documentation

Comprehensive UV testing and weathering performance data

Safety Data Sheets

Multi-language SDS documentation (16 sections, GHS compliant)

Technical Support & Value-Added Services

DRAVYOM's UV stabilization specialists provide comprehensive formulation support, weathering testing assistance, and application guidance to optimize HALS performance in your specific polymer protection applications.

Formulation Development
  • HALS selection and optimization
  • UV stabilizer system design
  • Processing parameter guidance
  • Custom stabilizer blends
Performance Testing
  • UV weathering evaluation
  • Accelerated aging testing
  • Color stability assessment
  • Mechanical property retention
Technical Support
  • UV protection consultation
  • Outdoor durability guidance
  • Quality assurance protocols
  • Manufacturing optimization support
Supply Solutions
  • Consistent batch scheduling
  • Emergency supply arrangements
  • Specialized packaging options
  • Global distribution network

Environmental Impact & Sustainability

Our HALS production emphasizes environmental responsibility through advanced chemistry, polymer durability extension, and comprehensive environmental impact management for sustainable UV protection applications.

Durability Extension

Extended polymer service life reducing material consumption and waste

Low Migration

Minimal migration characteristics reducing environmental exposure

Energy Efficiency

Reduced polymer replacement frequency lowering energy consumption

Ecotoxicity Studies

Comprehensive environmental safety assessment and monitoring

ISO 14001

Environmental management system certified production facility

Sustainable Polymers

Supporting sustainable polymer applications and circular economy

Manufacturing Excellence & Quality Control

DRAVYOM's advanced UV stabilizer facility employs controlled synthesis and purification technology with continuous monitoring systems to ensure consistent HALS quality and UV protection performance across all production batches.

Controlled Synthesis

Precise hindered amine synthesis with controlled molecular weight and purity

Advanced chemistry for optimal UV stabilization characteristics
Quality Testing

38-point testing protocol including UV absorption and stabilization efficacy

HPLC analysis and weathering performance verification
Quality Systems

ISO 9001:2015 and automotive grade certified UV stabilizer manufacturing

Continuous improvement and performance validation protocols
Stability Control

Controlled atmosphere packaging with UV protection performance preservation

Maintained efficacy and chemical stability

Market Applications & Performance Data

Comprehensive UV protection data demonstrating HALS effectiveness across demanding applications with quantified weathering resistance and polymer durability validation studies.

Automotive Applications
Durability: 10+ years exterior durability with excellent color retention Performance: Superior UV protection in Arizona desert testing Standards: SAE J1960 and ASTM G155 UV testing compliance
Construction Applications
Performance: Excellent weathering resistance for building materials Durability: Long-term UV protection with minimal color change Testing: Florida weathering and accelerated UV testing validation
Agricultural Applications
Performance: Superior greenhouse film and irrigation protection Durability: Extended service life in harsh outdoor conditions Quality: Maintained mechanical properties under UV exposure

DRAVYOM Competitive Advantages

Superior Performance

Consistently exceeds UV stabilizer standards with exceptional weathering resistance and long-term durability

Reliable Supply

Guaranteed availability with strategic inventory management and automotive-grade production scheduling

Technical Expertise

Dedicated UV protection technology team provides stabilizer development and weathering optimization support

Quality Assurance

Comprehensive certificates with detailed UV testing data and regulatory compliance validation

Global Standards

International compliance with FDA, EU, automotive, and construction specifications for worldwide UV protection applications

Partnership Approach

Collaborative relationships with automotive and construction manufacturers and custom UV stabilizer development services