Rigid Polyurea for Speaker SJHB-2080
Rigid Polyurea for Speaker SJHB-2080
Product Overview: High-Performance Aromatic Spray Polyurea Elastomer
SJHB-2080 & SJHB-2918 Spray Polyurea Elastomer is a solvent-free, two-component protective coating system engineered for demanding industrial and decorative applications. Formed through the rapid reaction of isocyanate with specialized amine compounds, this aromatic polyurea creates a seamless, flexible membrane that provides superior impact resistance, wear protection, and aesthetic enhancement. Specifically designed for application with professional spray equipment, it delivers exceptional adhesion to wood, foam, and composite substrates while maintaining outstanding acoustic properties for audio equipment applications.
Core Product Performance
This aromatic spray polyurea elastomer system bonds molecularly to substrate surfaces, forming a continuous, impermeable barrier. Its unique chemistry enables perfect adhesion to wood and other porous materials, providing dual-functionality as both a protective shield and decorative finish. The elastomeric nature of the cured film protects sensitive components from mechanical damage and environmental stressors while preserving the acoustic integrity of high-end audio equipment used in theaters, cinemas, auditoriums, and professional sound systems.
Key Features & Technical Advantages
- Solvent-Free & Eco-Friendly Formula: Contains no VOCs, eliminates solvent odors, and provides safe application in enclosed spaces.
- Rapid Cure & Vertical Application: Cures within seconds to minutes, allowing application on curved surfaces, steep slopes, and vertical planes without sagging or drips.
- Seamless, Flexible Membrane: Forms a continuous, joint-free coating that accommodates substrate movement and thermal expansion without cracking.
- Exceptional Substrate Adhesion: Bonds tenaciously to wood, foam, plastics, metals, and concrete with superior peel strength.
- Wide Temperature Performance: Maintains elasticity and adhesion across extreme temperature ranges from -40°C to 120°C.
- Long-Term Durability: Extends service life of protected assets while significantly reducing maintenance frequency and costs.
- Acoustic Transparency: Preserves sound quality in speaker applications without dampening or distorting audio performance.
Application Specifications & Equipment Requirements
Professional Application Method:
- Required Equipment: Professional plural-component spray system with heated hoses and impingement mix gun.
- Mix Ratio: 1:1 by volume (specific ratios may vary by formulation).
- Application Temperature: Substrate and material temperature should be maintained between 15°C and 35°C for optimal results.
- Surface Preparation: Substrates must be clean, dry, and free of contaminants, oil, grease, and loose particles.
Primary Application Areas
Decorative & Protective Coatings:
- Audio Equipment Manufacturing: High-end speaker enclosures for theaters, cinemas, concert halls, and home audio systems.
- Entertainment Industry: Movie props, stage equipment, and decorative elements requiring durable, flexible finishes.
- Wooden Furniture & Fixtures: Protective coatings for premium furniture, exhibition displays, and architectural woodwork.
Industrial Wear Protection:
- Transportation Industry (SJHB-2918): Truck beds, pickup truck liners, dump truck bodies, cargo containers, and trailer interiors.
- Material Handling Equipment: Hopper linings, chute protection, and bulk handling system components.
- Industrial Equipment: Protective coatings for machinery, tanks, and structural components exposed to abrasion and impact.
Technical Specifications
| Parameter | SJHB-2080 | SJHB-2918 |
|---|---|---|
| Appearance | Colored/Transparent | Colored/Transparent |
| Gel Time | 3-10 seconds | 5-15 seconds |
| Tack-Free Time | 10-30 seconds | 15-45 seconds |
| Tensile Strength | ≥ 18 MPa | ≥ 20 MPa |
| Elongation at Break | ≥ 350% | ≥ 400% |
| Shore Hardness | Shore A 80-90 | Shore A 85-95 |
| Service Temperature | -40°C to 100°C | -40°C to 120°C |
Packaging & Storage
- Standard Packaging: Component A: 200L drum; Component B: 200L drum
- Small Quantity Packaging: Available in 20L pails for trial and small projects
- Storage Conditions: Store in sealed containers at 10-30°C, away from direct sunlight and moisture
- Shelf Life: 6 months in original unopened containers under recommended conditions
Professional Support Services
For application training, equipment recommendations, technical data sheets, or project-specific formulations, contact our polyurea application specialists. We provide comprehensive support from material selection to on-site application guidance.
Sales Inquiries: sales@polyureamanufacturer.com
Phone: +86-15250943407
