B1 grade polyurethane rigid foam spray combination material

Product Introduction

The foaming agent of the B1 – grade sprayed polyurethane rigid foam composite for water – level fluctuation zone in water conservancy projects is an ultra – low thermal conductivity and environmentally friendly foaming agent. When used in combination with WANNATE®2208, it can produce foam products with excellent flame – retardant properties, and its combustion performance reaches B1 grade (GB 8624 – 2012).

This composite can be applied to cement surfaces, brick surfaces, wood surfaces, and other substrates. It has strong adhesion and good product dimensional stability.

Product Applications

The B1 – grade sprayed polyurethane rigid foam composite for water – level fluctuation zone in water conservancy projects is a fast – curing system that can bear load immediately and meets the construction requirements of most spraying insulation fields. Before using this composite, it is necessary to conduct tests first to ensure the reliability of the composite system for use in specific projects.

Physical and Chemical Properties

Item	Index
Viscosity at 25°C, mPa•s	40 – 250
Density, g/cm³	1.10±0.10
Color	Light yellow or yellow

Free Foaming Parameters

Item	Index
Cream Time, s	2-3
Gel Time, s	9-10
Tack – Free Time, s	11-18
Free Foaming Density, Kg/m³	32-45

Physical Properties

Item	Index
Mechanism Foam Density, kg/m³	≥70
Thermal Conductivity, W/(m·k)	≤0.024
Compressive Performance (10% Deformation), kPa	≥500
Tensile Bond Strength (with Cement Mortar, at Room Temperature), MPa	≥0.10
Dimensional Stability (at 70°C for 48h), %	≤1.5
Water Absorption Rate, %	≤3

Foaming Requirements

(1) For the foaming of the B1 – grade sprayed polyurethane rigid foam composite for water – level fluctuation zone in water conservancy projects, the material temperature should be 25°C, the volume ratio of materials is 1:1, and it should be mixed manually using an electric stirrer (2500 r/min).
(2) Operated in accordance with the precautions in this document, the overall density of the foam product obtained by the high – pressure spraying machine is greater than 45 kg/m³.
(3) 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 has no legal binding force.

Precautions for Use

(1) The construction equipment for the B1 – grade sprayed polyurethane rigid foam composite for water – level fluctuation zone in water conservancy projects is a high – pressure spraying machine. Before construction, please check and calibrate the conveying ratio and mixing pressure of the black and white materials of the high – pressure spraying machine.
(2) The ambient temperature for spraying operations should be preferably 10 – 40°C, the wind speed should not be greater than 5 m/s (level 3 wind), the relative humidity should be less than 75%, and construction is not allowed in rainy days. When the ambient temperature during construction is lower than 10°C, reliable technical measures should be taken to ensure the spraying quality.
(3) During spraying operations, control the temperature of the 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 spray of foam within the range of 1 – 1.5 cm (excluding the primer layer). During 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.
(4) Spraying operations shall be carried out in accordance with GB 50404 – 2017 “Technical Code for Rigid Polyurethane Foam Thermal Insulation and Waterproof Engineering”.
(5) The construction site should be a fire – prohibited area, well – ventilated, 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 and special – person monitoring should be taken.
(6) The buyer must conduct tests in an environment consistent with the construction conditions before the formal construction of the project to ensure the reliability of the composite system for use in this specific project. During formal construction, it is regarded that the buyer has recognized the qualified performance inspection of the product. If the above operations are not followed, all responsibilities shall be borne by the buyer.

Packaging Specifications

Packed in 200L green iron drums.

Storage (Use) Precautions

(1) The composite should be stored in a sealed container to avoid absorbing water vapor. Therefore, during storage and transportation, the container must be kept dry and sealed.
(2) The B1 – grade sprayed polyurethane rigid foam composite for water – level fluctuation zone in water conservancy projects should be stored in a cool and ventilated place at a room temperature between 5 – 35°C, sealed, and avoid direct sunlight or long – term storage above 40°C to prevent the large – scale volatilization of the foaming agent, which may affect storage and product performance.

Shelf Life

Under suitable storage conditions, the shelf life of the B1 – grade sprayed polyurethane rigid foam composite for water – level fluctuation zone in water conservancy projects is 3 months. After 3 months, it can be used continuously after passing the inspection.

Safety Precautions

(1) Direct contact with the B1 – grade sprayed polyurethane rigid foam composite for water – level fluctuation zone in water conservancy projects may cause moderate eye irritation and mild skin irritation, and may also cause skin allergies. Repeated inhalation of high – concentration vapors can cause respiratory allergies. Seek medical advice immediately and take anti – inflammatory, anti – allergic and other symptomatic treatment measures.
(2) Operate with caution to prevent direct contact with the skin and splashing into the eyes. Wear necessary protective equipment (gloves, protective glasses, work clothes, etc.).
(3) Once splashed on the skin or in the eyes, immediately rinse with clean water for at least 15 minutes. Wash the skin with soapy water, and seek medical advice if necessary. In case of ingestion, seek medical advice immediately for symptomatic treatment.

Fire and Explosion Hazards

(1) This product is not classified as a flammable liquid, explosive, oxidizer, corrosive, toxicant, or radioactive hazardous material during storage and transportation, and is not a hazardous product.
(2) Fire – fighting Media: Carbon dioxide, foam, or chemical dry powder fire extinguishers can be used for fire – fighting. When there are no other fire – fighting agents available, a large amount of atomized water can be sprayed. Once the fire is extinguished, the spilled materials should be cleaned up (see Leak and Spill Treatment).
(3) Fire – fighting Procedures: Normal protection.

Leak and Spill Treatment

Small amounts of leaked and 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 detergents. The disposal of waste composite materials must comply with local government environmental protection regulations.

For more information, please refer to the safety technical specifications of our company’s products or contact our company’s customer service center.

The indicators and data provided in this material are based on our current 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 whether they are suitable for their intended processes and uses and to achieve the desired goals. Further applications and processing of our company’s products are beyond our control. Therefore, our liability for the products provided is limited to the part delivered by us 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 phone.

Contact Address: No. 56 Taiyuan Road, Yantai City, Shandong Province, Wanhua Energy – Saving Technology (Yantai) Co., Ltd.

Contact person: Vivin Yi
WhatsAPP: +86 17761309662
Email: wanhuachemical@outlook.com
Tel: +86 17761309662
Wechat: yivonnie

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