Polyurethane rigid foam spray combination material version

Product Introduction

Product Grade	Distinctions	Distinctions
B1 - grade	The foaming agent is an ultra - low thermal conductivity environmental - friendly foaming agent. When used in combination with WANNATE庐2208, it can produce foam products with excellent flame - retardant performance, and the combustion performance reaches B1 grade (GB 8624 - 2012).	The foaming agent is an ultra - low thermal conductivity environmental - friendly foaming agent. When used in combination with WANNATE®2208, it can produce foam products with excellent flame - retardant performance, and the combustion performance reaches B1 grade (GB 8624 - 2013).
B2 - grade	The foam products have a combustion performance of B2 grade (GB 8624 - 2012), and are described as having excellent flame - retardant performance.	The foam products have a combustion performance of B2 grade (GB 8624 - 2013), and are described as having excellent flame - retardant performance.

Product Applications

The products are applicable to spray - insulation fields such as cold storage, food factories, chemical plants, industrial buildings, civil buildings, various pipelines, and storage tanks. They are fast - curing systems that can bear loads immediately and are suitable for the construction requirements of most spray - insulation fields. Before using the building ground - sprayed polyurethane rigid foam composite materials, it is necessary to conduct tests first to ensure the reliability of the composite material system for use in specific projects.

Physical and Chemical Properties

Item	B1 - grade Index	B2 - grade Index
Viscosity at 25°C, mPa•s	40 - 250	40 - 250
Density, g/cm³	1.10 ± 0.10	1.10 ± 0.10
Color	Light yellow or yellow	Colorless or light yellow

Free Foaming Parameters

Item	B1 - grade Index	B2 - grade Index
Cream Time, s	1 - 3	2 - 3
Gel Time, s	5 - 8	8 - 10
Tack - Free Time, s	10 - 12	10 - 13
Free Foaming Density, Kg/m³	35 - 41	27 - 33

Physical Properties

Item	B1 - grade Index	B2 - grade Index
Density, kg/m³	≥ 45	≥ 37
Thermal Conductivity, W/(m·k)	≤ 0.024	≤ 0.024
Compressive Performance (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	-
Water Absorption, %	≤ 3	≤ 3
Closed - Cell Content, %	-	≥ 90

Foaming Requirements

For both B1 - grade and B2 - grade building ground - sprayed polyurethane rigid foam composite materials, the required material temperature for foaming is 25°C, the volume ratio of materials is 1:1, and manual mixing is carried out using an electric stirrer (2500r/min).
When operating in accordance with the precautions in this document, the overall density of the foam products obtained by the high - pressure spraying machine is greater than 45kg/m³ for B1 - grade and greater than 37kg/m³ for B2 - grade.
The values provided in this document are typical test values. Specific data may vary slightly due to environmental conditions. For our company's products, the listed data have no legal binding force.

Precautions for Use

The construction equipment for both B1 - grade and B2 - grade building ground - sprayed polyurethane rigid foam composite materials is a high - pressure spraying machine. Before construction, check and calibrate the delivery ratio of black and white materials and the mixing pressure of the high - pressure spraying machine.
The suitable spraying operation environment temperature 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 not allowed in rainy days. When the construction environment temperature is lower than 10°C, reliable technical measures should be taken to ensure the spraying quality.
During the spraying operation, control the temperature of black and white materials entering the spray gun to be greater than 30°C, and ensure that the substrate is dry and clean. Control the thickness of each gun of foam within the range of 1 - 1.5cm (excluding the primer layer). During the construction, the next layer can be sprayed only when the surface of the previously sprayed polyurethane rigid foam is no longer sticky. Other relevant standards shall be implemented in accordance with national standards. If the above conditions are not met, all responsibilities shall be borne by the buyer.
The spraying operation shall be carried out in accordance with GB 50404 - 2017 "Technical Specification for Rigid Polyurethane Foam Insulation and Waterproof Engineering".
The construction site should be a fire - prohibited 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 dedicated personnel for supervision.
Before the formal construction of the project, the buyer must conduct tests in an environment consistent with the construction conditions to ensure the reliability of the composite material system for use in this specific project. Formal construction is regarded as the buyer's recognition of the product's performance inspection as qualified. If the above operations are not followed, all responsibilities shall be borne by the buyer.

Packaging Specifications

Both B1 - grade and B2 - grade products are packaged in 200L green iron drums.

Storage and Use Precautions

The composite materials should be stored in sealed containers to avoid absorbing water vapor. Therefore, during storage and transportation, it is necessary to ensure that the containers are dry and sealed.
Both B1 - grade and B2 - grade building ground - sprayed polyurethane rigid foam composite materials should be stored in a sealed manner at room temperature between 5 - 35°C in a cool and ventilated place, avoiding direct sunlight or long - term storage above 40°C to prevent a large amount of foaming agent from volatilizing, which may affect storage and product performance.

Shelf Life

Under suitable storage conditions, the shelf life of both B1 - grade and B2 - grade building ground - sprayed polyurethane rigid foam composite materials is 6 months. After 6 months, they can be used continuously after passing the inspection.

Safety Precautions

Direct contact with both B1 - grade and B2 - grade building ground - sprayed polyurethane rigid foam composite materials can cause moderate eye irritation and mild skin irritation, and may cause skin allergies. Repeated inhalation of high - concentration vapors can cause respiratory allergies. Seek medical attention immediately and take anti - inflammatory, anti - allergic and other symptomatic treatment measures.
When operating, be cautious to prevent direct contact with the skin and splashing into the eyes. Wear necessary protective equipment (gloves, protective glasses, work clothes, etc.).
In case of splashing on the skin or into the eyes, immediately rinse with clean water for at least 15 minutes, wash the skin with soapy water, and seek medical attention if necessary. In case of accidental ingestion, seek medical attention immediately for symptomatic treatment.

Fire and Explosion Hazards

Both B1 - grade and B2 - grade products are not classified as flammable liquids, explosives, oxidizers, corrosives, poisons, or radioactive dangerous goods during storage and transportation, and are not hazardous goods.
Fire - fighting media: Carbon dioxide, foam, or chemical dry powder fire extinguishers can be used for fire - fighting. When there is no other fire - fighting agent available, a large amount of atomized water can be sprayed. Once the fire is extinguished, the spilled materials should be cleaned up (refer to the leakage and spillage treatment).
Fire - fighting procedures: Normal protection.

Leakage and Spillage Treatment

For both B1 - grade and B2 - grade products, a small amount of leaked or spilled materials can be washed away with water. In case of a large - scale leak, collect and recycle the materials, and wash the contaminated ground with water or detergent. The disposal of waste composite materials must comply with local government environmental protection regulations.
For more information, please refer to our company's product safety data sheet or contact our company's customer service center.

Disclaimer

The indicators and data provided in this document are based on our existing technical knowledge and practical experience and are for reference only. The specific guaranteed indicators shall be subject to the quality guarantee letter or the supply contract. Users are responsible for testing the products purchased from our company to verify their suitability for the intended processes and uses and to achieve the 预定的目标. Our company has no control over the further application and processing of our products. Therefore, our liability for the products provided is limited to the part delivered by our company and used by you, and we do not assume 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 willing to provide you with product - related consultations and application technical services. Welcome to contact us by letter or telephone.