Spray Polyurethane Foam Insulation: Technical Specifications and Application Guidelines

Product Description

Spray Polyurethane Foam (SPF) is a single-component, polyurethane-based insulation material designed for thermal and acoustic applications. The product cures through moisture reaction, expanding to form a semi-rigid foam with excellent adhesion properties. Available in aerosol cans with specialized application equipment, this insulation solution offers superior performance compared to traditional methods while reducing transportation, storage, and labor costs.

Key Performance Characteristics

• Single-component formulation requiring no mixing
• Moisture-curing chemistry with rapid expansion
• Semi-rigid cured foam structure
• Excellent adhesion to most building substrates
• High gap-filling capacity (up to 50mm)
• Minimal shrinkage or sagging during curing
• Thermal conductivity: 0.022 W/mK
• Sound absorption: up to 60 dB reduction
• Water-resistant when fully cured

Application Areas

• This insulation product is suitable for numerous applications including:
• Building envelopes (roofs, walls, foundations)
• Interior partitions and floor assemblies
• Mechanical system penetrations
• Door and window installations
• Vehicle and marine applications
• Industrial equipment insulation

Installation Methodology

Equipment Preparation

• Select appropriate nozzle for application surface:
  Nozzle A for vertical surfaces
  Nozzle B for overhead applications
• Securely attach nozzle to application gun
• Verify proper seal between components
• Shake can vigorously for 20 cycles
• Adjust gun pressure settings as required

Application Technique

For vertical surfaces:

• Maintain 40-45 cm spray distance
• Apply in layers not exceeding 1.5 cm thickness
• Use three-layer cross-hatch pattern for optimal performance
• Allow proper curing between layers

For ceiling applications:

• Maintain 15-20 cm spray distance
• Hold applicator vertically
• Apply using controlled, sweeping motions

Comparative Analysis with Alternative Insulation Materials

Quality Assurance Parameters

• Density: 25-30 kg/m³ (cured foam)
• Expansion ratio: 40:1
• Closed-cell content: ≥70%
• Curing profile:
  Surface tack-free: 8-10 minutes
  Full cure: 24 hours
• Fire performance:
  B1 grade (flame retardant)
  B3 grade (standard)
  
  

Storage and Handling Requirements

• Store containers upright at 5-35°C
• Protect from direct sunlight
• Use opened containers within 72 hours
• UV protection required for exterior applications

Cost Considerations

• Material efficiency reduces overall project costs
• Labor savings compared to panel systems
• Reduced maintenance requirements
• Energy savings potential of 30-40%

Global Product Nomenclature

This product category is known internationally as:

• Spray PU Foam
• Insulation Foam
• Thermal Insulation Foam
• Acoustic Insulation Foam

For additional technical information or application support, please consult product datasheets or contact technical services.