Construction Grade Polyurethane Sealants
Construction Sealant Grade
Construction Chemical

Construction Grade Polyurethane Sealants

High-performance Construction Grade Polyurethane Sealants specifically formulated for building applications. Our polyurethane sealants deliver excellent weather resistance and superior adhesion for construction joints, waterproofing, and building envelope applications requiring durable sealing performance.

  • Excellent Weather Resistance
  • Superior Adhesion
  • High Flexibility
  • Construction Grade Quality
  • UV Resistant
  • Long-lasting Performance
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Technical Specifications

Product Type: Single-component polyurethane sealant
Base Polymer: Moisture-curing polyurethane
Viscosity: 80,000-120,000 cP
Skin Formation Time: 15-30 minutes
Cure Rate: 2-3mm per 24 hours
Shore A Hardness: 35 ± 5
Tensile Strength: ≥ 2.0 MPa
Elongation at Break: ≥ 400%
Modulus at 100%: 0.4-0.8 MPa
Movement Capability: ±25% joint movement
Service Temperature: -40°C to +80°C
UV Resistance: Excellent, non-yellowing
Water Resistance: Permanent immersion suitable
Paintability: Accepts most paint systems
Color Options: White, gray, black, custom colors
Package Sizes: 310ml cartridges, 600ml sausages
Shelf Life: 12 months from manufacture
Application Temperature: 5°C to 40°C

Applications

Building Perimeter Sealing
Window & Door Frames
Expansion Joint Sealing
Industrial Building Sealing
Automotive Assembly
Marine Applications
Highway Joint Sealing
Warehouse Construction
Waterproofing Systems
Airport Infrastructure
Healthcare Facilities
General Construction

Industry-Specific Grades

DRAVYOM offers specialized polyurethane sealant formulations tailored for specific construction applications, ensuring optimal flexibility, adhesion, and weather resistance for diverse structural sealing requirements.

Construction Grade
Movement: ±25% Hardness: Shore A 35 UV Resistance: Excellent Application: General building
Structural Grade
Tensile Strength: ≥ 2.5 MPa Elongation: ≥ 500% Modulus: High performance Application: Structural glazing
Marine Grade
Water Resistance: Immersion rated Salt Spray: 1000+ hours Flexibility: Enhanced Application: Marine structures
Fire-Rated Grade
Fire Rating: Up to 4 hours Smoke Development: Low Intumescent: Available Application: Fire-rated assemblies

Quality Standards

DRAVYOM's polyurethane sealants are manufactured under stringent quality control protocols, meeting international construction standards including ASTM C920, EN 15651, and building code requirements for structural sealing applications.

ISO 9001:2015 Certified Manufacturing
ASTM C920 Standards Compliance
±25% Movement Capability
Advanced Adhesion Testing
UV Resistance Verified
-40°C to +80°C Service Range
Weathering Test Certificate
Climate-Controlled Storage

Advanced Chemical Properties & Performance

Polyurethane Sealants exhibit exceptional chemical properties essential for sealing applications. Their advanced polymer chemistry and elastic performance ensure reliable sealing in demanding construction and industrial environments.

Chemical Properties
Polymer Type: Moisture-cure polyurethane
Chemical Resistance: Good acid/alkali resistance
Solvent Resistance: Moderate organic resistance
UV Stability: Excellent weathering resistance
Physical Properties
Tensile Strength: 2.5 MPa
Elongation at Break: 600%
Shore A Hardness: 35-40
Modulus at 100%: 0.8 MPa
Performance Characteristics
Movement Capability: ±25% joint movement
Service Temperature: -40°C to +90°C
Adhesion Strength: 1.5 MPa to most substrates
Cure Rate: 2-3mm per 24 hours
Quality Specifications
Polymer Content: ≥ 85% polyurethane polymer
Density: 1.3 ± 0.1 g/cm³
Viscosity: Paste consistency, non-sag
Application Temperature: 5°C to 40°C
Durability Properties
Service Life: 20+ years expected
Fatigue Resistance: Excellent cyclic movement
Water Resistance: Excellent immersion resistance
Aging Resistance: Superior long-term stability

Performance Characteristics

Detailed performance metrics demonstrate Polyurethane Sealants superiority in sealing applications with exceptional elasticity, adhesion, and weathering resistance for long-term joint sealing.

Movement Accommodation

Capability: ±25% joint movement

Exceptional flexibility and elasticity
Adhesion Performance

Strength: 1.5 MPa bond strength

Superior substrate adhesion
Weather Resistance

UV stability: Excellent outdoor performance

Long-term weather durability
Temperature Performance

Range: -40°C to +90°C service

Wide temperature flexibility
Durability

Service life: 20+ years expected

Long-term sealing reliability
Cure Performance

Rate: 2-3mm per 24 hours

Predictable cure progression

Safety Information

Contains isocyanates - may cause respiratory sensitization and skin irritation. Use appropriate protective equipment including respirator, chemical-resistant gloves, and protective clothing. Ensure excellent ventilation during use. Avoid inhalation of vapors and skin contact. Follow proper safety protocols for isocyanate-containing materials.

Respiratory Sensitizer
Skin Irritant
Ventilation Required

Storage & Handling

Store in original sealed cartridges in a cool, dry place away from moisture and heat sources. Protect from freezing and direct sunlight. Use within shelf life and ensure substrate surfaces are clean and dry before application. Follow proper cartridge gun procedures.

Cool storage (5-25°C)
Moisture protection essential
Sealed cartridges only
Protect from freezing

Chemical Mechanisms & Reaction Pathways

Polyurethane Sealants exhibit complex polymer formation through isocyanate-polyol reactions, enabling flexible bonding with excellent weather resistance for demanding sealing applications.

Urethane Formation

Isocyanate + Hydroxyl → Urethane linkage with controlled cross-linking

Flexible polymer network development
Adhesion Mechanism

Chemical and mechanical bonding to diverse substrates

Superior adhesion without primers
Moisture Cure

Atmospheric moisture initiates crosslinking reactions

Self-curing sealant system
Weather Resistance

UV and thermal stability through polymer structure

Long-term outdoor performance

Regulatory Compliance & Documentation

Comprehensive regulatory compliance ensures global construction access with complete documentation supporting international building codes and sealant standards.

ASTM C920

Standard specification for elastomeric joint sealants

EN 15651 Standards

European sealant specifications for construction

ISO 11600

Building construction sealant classification

REACH Registration

European Union chemical regulation compliance

Performance Testing

Supported adhesion and durability validation

SDS Documentation

Multi-language Safety Data Sheets (GHS compliant)

Technical Support & Value-Added Services

DRAVYOM's sealant specialists provide comprehensive sealing support, application guidance, and technical services to optimize performance in your construction projects.

Application Development
  • Joint design optimization
  • Surface preparation protocols
  • Application technique guidance
  • Custom formulation services
Testing Services
  • Adhesion testing
  • Movement capability evaluation
  • Weather resistance testing
  • Performance validation
Technical Support
  • Application troubleshooting
  • Project consultation
  • Safety protocols
  • Best practices training
Supply Solutions
  • Project scheduling
  • Emergency supply
  • Custom packaging
  • Regional distribution

Environmental Impact & Sustainability

Our Polyurethane Sealants production emphasizes environmental responsibility through sustainable chemistry practices and comprehensive environmental impact management.

Low VOC Formula

Minimal volatile organic compound emissions

Long Service Life

25+ year performance reduces replacement needs

Energy Efficiency

Superior sealing reduces building energy loss

Safe Application

Non-toxic cured sealant safe for occupants

Green Building

Supports LEED and sustainable construction

Packaging Recovery

Cartridge recycling programs available

Manufacturing Excellence & Quality Control

DRAVYOM's sealant manufacturing facility employs advanced polymer technology to ensure consistent quality and performance across all production batches.

Polymer Processing

Controlled reaction conditions in moisture-free environment

Precise molecular weight control
Quality Testing

Comprehensive adhesion and durability testing

Movement capability and weather resistance validation
Quality Systems

ISO 9001:2015 certified production processes

Continuous improvement protocols
Packaging Control

Moisture-barrier cartridge packaging systems

Extended shelf life protection

Market Applications & Performance Data

Comprehensive field data demonstrating Polyurethane Sealant effectiveness across diverse construction applications with quantified performance metrics.

Commercial Buildings
Movement: ±25% joint capability Adhesion: Excellent to multiple substrates Durability: 25+ year service life
Infrastructure
Projects: 1000+ successful installations Performance: 99% specification compliance Weather: Extreme condition resistance
Marine Applications
Salt Resistance: Superior performance Flexibility: Maintains bond under stress Maintenance: 60% reduction required

DRAVYOM Competitive Advantages

Superior Flexibility

Exceptional movement capability with long-term adhesion performance

Reliable Supply

Guaranteed availability with project-based scheduling and technical support

Sealant Expertise

Specialized polymer chemistry team provides formulation and application support

Quality Assurance

Comprehensive testing with performance validation and technical documentation

Global Standards

International compliance with construction and sealant standards

Partnership Approach

Collaborative relationships with contractors and custom solution development