| Customization: | Available |
|---|---|
| Molecular Principal Chain: | Heterochain Polymer |
| Color: | Light Yellow |
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SDL3202 is an eco-friendly, water-blown rigid polyurethane (PU) foam designed for continuous production of color steel sandwich panels, widely used in building roofs, factory walls, and door panels. It offers exceptional thermal insulation (low conductivity), strong steel bonding, and long service life, making it ideal for energy-efficient construction.
Key Benefits:
Water-Based Blowing Agent (0 ODP) - Environmentally safe, no ozone depletion.
Excellent Thermal Insulation - Reduces energy costs in buildings.
High Bonding Strength - Adheres securely to steel surfaces.
Fast Curing (8-12s cream time) - Boosts production efficiency.
Wide Service Temperature (-50°C to 70°C) - Suitable for extreme climates.
| Property | SDL3202 (Blend Polyol) | PM400 (Recommended MDI) | Foam Performance |
|---|---|---|---|
| Appearance | Light yellow liquid | Brown liquid | Rigid, closed-cell foam |
| Density (25°C) | 1.20±0.05 g/cm³ | 1.22-1.25 g/cm³ | Free rise density: 14-17 kg/m³ |
| Viscosity (25°C) | 600-900 cps | 350-500 cps | Smooth continuous line processing |
| Cream Time | 8-12 s | - | Ultra-fast reaction |
| Gel Time | 35-45 s | - | Balanced curing speed |
| Overall Density | - | - | 30-35 kg/m³ (final product) |
Eco-Friendly Formula - Uses water-based blowing agent, unlike chemical alternatives.
Superior Thermal Efficiency - Ideal for energy-saving buildings.
Optimized for Continuous Lines - Fast rise time (50-70s) increases output.
Strong Steel Adhesion - Prevents delamination in sandwich panels.
Roofing Panels
Factory Wall Insulation
Cold Storage Doors
Prefab Housing Modules
HVAC Duct Insulation
| Parameter | Recommended Value |
|---|---|
| Mixing Ratio (SDL3202:PM400) | 0.9:1 (volume ratio) |
| Material Temperature | 23±3°C |
| Machine Pressure | ≥130 bar |
| Belt Temperature | 40-50°C (adjustable up to 80°C) |
Critical Notes:
Calibrate foaming machine flow (≤1 g/s fluctuation).
Maintain MDI temperature at 18-28°C for optimal reactivity.
Store in sealed drums (15-25°C) to prevent moisture absorption.
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