B1-Grade Spray Polyurethane Rigid Foam Composite Material for Refrigerated Fishing Boats

B1-Grade Polyurethane Rigid Foam Spray System is specifically engineered for refrigeration insulation in fishing vessels, featuring:

Ultra-low thermal conductivity eco-friendly blowing agent.

Superior adhesion to concrete, brick, wood, and other substrates.

Excellent dimensional stability and flame retardancy.

Certifications:

Flame Rating: B1 (GB 8624-2012)

Oxygen Index: ≥30% (GB/T 2406.2-2009)

This instruction manual is applicable to the B1 and B2-grade polyurethane rigid foam spraying compound used for cold-chain fishing vessels. The difference between the two lies in their distinct combustion performances.

B1 grade: These are flame-retardant materials, such as rigid PVC plastic flooring, wood materials treated with flame-retardant agents, phenolic plastics, polycarbonate plastics, and the like.

B2 grade: These are combustible materials, including natural wood, plywood, artificial leather, polyethylene, polypropylene, polyurethane foam plastics, and so on.

1. Product Overview

The B1 – grade polyurethane rigid foam spraying compound for cold – chain fishing vessels uses an environmentally friendly foaming agent with an ultra – low thermal conductivity. When used in combination with WANNATE®2208, this compound can be applied to various substrates such as cement surfaces, brick surfaces, wood surfaces, and other substrates. It has strong adhesion, good dimensional stability of the products made, and particularly outstanding flame – retardant performance. According to the GB 8624 – 2012 standard, its combustion performance reaches level B1. According to the GB/T 2406.2 – 2009 standard, the oxygen index is 30%.

Featuring:

Ultra-low thermal conductivity eco-friendly blowing agent.

Superior adhesion to concrete, brick, wood, and other substrates.

Excellent dimensional stability and flame retardancy.

2. Key Applications

The B1 – grade polyurethane rigid foam spraying compound for cold – chain fishing vessels is a fast – curing system. Designed for rapid-curing insulation systems in:

Refrigerated fish holds.

Cold storage bulkheads.

Deck insulation layers.

Note: Mandatory field testing required prior to full-scale application to verify performance under actual service conditions.

3. Technical Specifications

Physicochemical Properties

Parameter	Specification	Test Method
Viscosity (25°C, mPa·s)	50-200	GB/T 12009.3
Density (g/cm³)	1.10±0.10	ISO 845
Color	Light yellow	Visual inspection

Free-Foaming Parameters

Parameter	Specification
Cream Time (s)	2-3
Gel Time (s)	9-10
Tack-Free Time (s)	10-13
Free-Foam Density (kg/m³)	32-45

Physical Properties

Parameter	B1	B2
Molded Foam Density (kg/m³)	≥45	≥37
Thermal Conductivity (W/(m·K))	≤0.024	≤0.024
Compressive Strength (10% deformation, kPa)	≥200	≥150
Dimensional Stability (70°C, 48h, %)	≤1.5	≤1.5
Tensile Bond Strength (with Cement Mortar, at Room Temperature, Mpa)	≥0.10	≥0.10
Water Absorption (%)	≤3	≤3

4. Processing Guidelines

Before construction, please be sure to check and calibrate the conveying ratio of the black and white materials and the mixing pressure in the high – pressure spraying machine. The suitable environmental temperature for spraying operations is 10 – 40°C, the wind speed should not exceed 5m/s (level 3 wind), the relative humidity should be less than 75%, and construction is prohibited in rainy days. When the construction environmental temperature is lower than 10°C, reliable technical measures should be taken to ensure the spraying quality.

The construction site should be designated as a fire – free area, with good ventilation, away from fire sources, and smoking is strictly prohibited. When there is hot work nearby, the hot work approval system must be strictly implemented, and corresponding safety measures should be taken, with special personnel assigned for monitoring.

Mixing Parameters:

Material temperature: 25±2°C
Mixing ratio (A:B): 1:1 by volume
Mixing method: Electric stirring at 2500 rpm

Spray Application:

Equipment: High-pressure spray machine
Ambient conditions:
- Temperature: 10-40°C
- Wind speed: ≤5 m/s (Beaufort 3)
- Humidity: <75% RH
Layer thickness: 1-3 cm per pass

Curing: Subsequent layers may be applied only when previous layer is tack-free. Formal construction is regarded as the buyer’s recognition of the product’s performance inspection. If the above requirements are not followed, all responsibilities shall be borne by the buyer.

5. Packaging & Storage

The compound should be stored in a sealed container to prevent water vapor absorption. Therefore, during the storage and transportation process, it is necessary to ensure that the container is dry and well – sealed.

Packaging:

200L green steel drums

Storage Conditions:

Temperature: 5-35°C

Protection: Dry, sealed, away from direct sunlight

Shelf life: 3 months (extendable upon requalification)

It is prohibited to store it in an environment above 40°C for a long time to prevent the large – scale volatilization of the foaming agent, which may affect storage and product performance.

6. Safety & Compliance

During the operation, be especially careful to avoid direct contact with the skin and prevent it from splashing into the eyes. Please be sure to wear necessary protective equipment, such as gloves, protective goggles, and work clothes.

PPE Requirements:

Chemical-resistant gloves (nitrile/neoprene)

ANSI Z87.1-approved safety goggles

Protective coveralls with sleeves

First Aid Measures:

Eye contact: Flush with water for ≥15 minutes → seek medical attention

Skin contact: Wash with soap/water → consult physician if irritation persists

Fire Safety:

NFPA Classification: Non-flammable (storage/transport)

Extinguishing media: CO₂, foam, or dry chemical powder

7. Environmental & Disposal

Spill Management:

Minor spills: Dilute with water → drain to treatment system
Major spills: Contain with absorbents → professional recovery

Disposal: Must comply with local hazardous waste regulations

The indicators and data provided in this material are based on our existing technical knowledge and practical experience and are for reference only. The specific guaranteed indicators are subject to the provisions in the quality guarantee letter or supply contract. Users are responsible for testing the products purchased from our company to verify whether they are suitable for their intended processes and applications and can achieve the expected goals. We have no control over the further application and processing of our company’s products. Therefore, our liability for the products we provide is limited to the part that we deliver and that is used by you. We do not assume liability for the indirect losses caused during the production process using our company’s products as raw materials. Our company’s technical support and customer service center are dedicated to providing you with product consultation and application technical services. You are welcome to contact us by letter or by phone.

Technical Support:
Wanhua Energy Conservation Technology (Yantai) Co., Ltd.
Address: No.56 Taiyuan Road, Yantai, Shandong 264006, China
Tel: +86-400-059-1116 | Fax: +86-17761309662