Polyether Polyols for Rigid Foam Rigid Foam Spraying Compound, WANEFOAM®325 - manufacturer - supplier

Rigid Foam Spraying Compound, WANEFOAM®325

The WANEFOAM®325 (Type I) polyurethane rigid foam spraying coating is a fast – curing system. After molding, it can bear loads immediately, which can meet the requirements of most spraying and insulation construction projects.

This technical manual applies to WANEFOAM® 325 Type I, II, and III formulations. For product differentiation, please refer to the comparison table below.

1. Product Overview

WANEFOAM® 325 (Type I) is a high-performance rigid polyurethane foam spray system formulated with an ultra-low thermal conductivity, environmentally friendly blowing agent. When combined with WANNATE® 2208 isocyanate component, it produces foam products with exceptional flame retardancy.

Key Features:

Versatile Substrate Compatibility: Bonds strongly to concrete, brick, wood, and other substrates.
Superior Stability: Excellent dimensional stability (≤1.5% at 70°C/48h) and closed-cell structure (≥90%).
Flame Retardancy: Class B2 fire rating (GB 8624-2012) with an oxygen index ≥26% (GB/T 2406.2-2009).

2. Applications

This product is widely used in the spraying and insulation fields of cold storage, food factories, chemical plants, industrial buildings, civil buildings, as well as various pipelines and storage tanks. The WANEFOAM®325 (Type I) polyurethane rigid foam spraying coating is a fast – curing system. After molding, it can bear loads immediately, which can meet the requirements of most spraying and insulation construction projects.

Note: Prior to full-scale application, field testing under actual project conditions is mandatory to verify system suitability.

3. Physicochemical Properties

Parameter	Type I	Type II	Type III
Viscosity (25°C, mPa·s)	40–450	40–450	50-600
Density (g/cm³)	1.10 ± 0.10	1.10 ± 0.10	1.10 ± 0.10
Appearance	Colorless to pale yellow	Colorless to pale yellow	Colorless to pale yellow

Free-Foaming Parameters:

Parameter	Type I	Type II	Type III
Cream Time (s)	2–3	2–3	2–3
Gel Time (s)	9–10	9–10	9–10
Tack-Free Time (s)	10–13	10–13	10–17
Free-Foam Density (kg/m³)	35–41	35–41	45-50

Physical Properties

Property	Type I	Type II	Type III
Density (kg/m³)	≥35	≥45	≥55
Thermal Conductivity (W/(m·k))	≤0.024	≤0.024	≤0.024
Compressive Property (10% Deformation, kPa)	≥150	≥200	≥300
Water Impermeability (Without Skin, 0.2Mpa, 30min)	–	impermeable	impermeable
Dimensional Stability (70℃, 48h) (%)	≤1.5	≤1.5	≤1.0
Closed – Cell Content (%)	≥90	≥92	≥95
Water Absorption (%)	≤3	≤2	≤1
Oxygen Index (%)	≥26	B2	B2

Testing Conditions:

Material temperature: 25°C
Mixing ratio (A:B): 1:1 by volume
Stirring speed: 2500 rpm (electric mixer)

5. Operational Guidelines

Equipment: High-pressure spray machine (calibrated for 1:1 ratio).

Environmental Requirements:

Ambient temperature: 10–40°C

Wind speed: ≤5 m/s (Beaufort Scale 3)

Humidity: <75% (no rainy conditions)

Spray Parameters:

Material temperature at nozzle: >30°C

Layer thickness: 1–1.5 cm per pass

Curing: Allow each layer to become tack-free before reapplying.

Safety Compliance:

Follow GB 50404-2017 (Chinese Technical Code for PU Insulation). Or the relevant standards in your local area.

Designate construction zones as “No Open Flame” areas.

6. Packaging & Storage

Packaging: 200L green steel drums.

Storage:

Temperature: 5–35°C (avoid direct sunlight).

Seal containers to prevent moisture absorption.

Shelf life: 6 months (extendable post-inspection).

7. Safety & Emergency Procedures

PPE Requirements: Gloves, goggles, and protective clothing.

First Aid:

Skin contact: Wash with soap/water; seek medical help if irritated.

Eye exposure: Flush with water for 15+ minutes; consult a physician.

Fire Response:

Extinguishing media: CO₂, foam, or dry chemical powder.

Avoid water jets (use fine spray for large fires).

Spill Management:

Minor leaks: Dilute with water.

Major spills: Contain and recover; clean with detergent.

PPE Requirements for Responders:

– Level B HAZMAT suit

– Positive pressure SCBA

– Chemical-resistant gloves (Butyl rubber)

– Safety boots with steel toe/shank

8.Disclaimer

Specifications are based on current technical knowledge. Users must verify suitability for intended applications. We assume no liability for indirect losses from downstream processing.

For full SDS or technical support, contact our customer service.