1. Material Classification & Performance

1.1 Oriented Strand Board (OSB)

• Composition: Engineered from poplar, pine, and mixed wood strands
• Key Parameters:
• Standard size: 1220mm × 2440mm
• Thickness range: 8mm–20mm
• Moisture content: ≤18%
• Density: 530–680 kg/m³
• Advantages:
• Dimensional stability with minimal warping
• Water resistance for humid environments
• High nail-holding strength (≥1900N on face)
• Low formaldehyde emission (meets E0/E1 standards)

1.2 Plywood

• Core Options: Poplar, pine, birch, or composite hardwood
• Grades & Finishes:
• Surface grades: BB/BB, BB/CC, CC/DD
• Veneer options: Okoume, oak, ash, or technical veneers
• Key Parameters:
• Thickness: 2.5mm–30mm (18mm most common for commercial sofas)
• Moisture content: 6–14%
• Advantages:
• Resistance to cracking and shrinkage
• Flexibility for curved sofa designs
• Cost-effective alternative to solid wood

1.3 Solid Wood Veneer Boards

• Application: Premium sleeper sofas (e.g., 48×48" full-size support boards)
• Features: 13mm thick hardwood veneer with Oxford polyester coating
• Advantages:
• Enhances mattress support by distributing weight evenly
• Foldable design for easy storage

2. Adhesive Technologies & Safety Standards

2.1 Environmental Classification

2.2 Functional Adhesive Types

• MR Glue: Moisture-resistant for general sofa frames
• Phenolic/WBP Glue: Waterproof for humid regions (e.g., Southeast Asia)
• Advanced Polymers: Fast-curing (4-hour strength = 24-hour urethane) with mold resistance

3. Product Specifications

3.1 Dimensional Standards

3.2 Critical Tolerances

• Thickness variation: ≤±0.5mm
• Flatness: No distortion over 2440mm length
• Bonding strength: ≥0.90 MPa (internal)

4. Core Advantages

4.1 Structural Durability

• OSB/plywood boards resist corrosion and fire
• Screw-holding strength (≥1200N on back surfaces) prevents loose joints

4.2 Environmental Safety

• E0/E1 glues meet CARB P2 and EPA standards
• VOC-compliant adhesives eliminate harmful fumes

4.3 Versatile Adaptability

• Surface compatibility with paint, veneer, and fabric
• Foldable designs for sleeper sofas (storage under cushions)

4.4 Cost Efficiency

• 30–50% lower cost than solid wood with comparable performance
• 10+ year service life reduces replacement frequency

5. Application Recommendations

• Office Furniture: 8mm plywood (E1 glue) for lightweight durability
• Hotel Sectionals: 18mm OSB (WBP glue) for high-traffic use
• Residential Sleeper Sofas: 13mm solid wood veneer boards
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