Casting polyurethane prepolymers involves a process where a liquid mixture of polyols and isocyanates is poured into a mold or container and allowed to cure or solidify. This process is commonly used in various industries such as automotive, construction, and manufacturing. Polyether Polyurethane Prepolymer,Cpu For Elastomers,Polyseter Prepolymer For Ring,Prepolymer For Pu Plate XUCHUAN CHEMICAL(SUZHOU) CO., LTD , https://www.xuchuanpu.com
OGUAN® TYRE --- SAFE ON THE ROAD
Motorcycle tyre For South America: 400-10
1. Ply rating: 6PR /8PR
2. Special dual sport Pattern For Baja Motorcycle
3. Excellent traction
4. Top quality with good Performance at heavy duty and wear-resistant, hard cross-slip.
5. Ensure run 30000km
6. High Antiwear, rolling resistance, driving performance, airtightness of inner tube, elongation rate, heat fatigue, long time of cracking resistance, anti-aging and tear strength
7.Free samples available
8. The best price,the best service of 24 hours aftersale service and Cargo tracking service for you accept the goods safely.
Compaby introduction:
Our company mainly produces motorcycle tire, vacuum tire, special tires, natural rubber tubes, butyl rubber inner tube. The company has advanced production equipment, process requirements and technical strength. Ensure the quality and credibility, develop brand strategy, products strictly in accordance with national standards for production, with a sound quality management system, ISO/TS16949 quality system certification, product "CCC" certification, and the United States "DOT" certification, Europe "ECE" certification Indonesia "SN1" certification. Is a provincial contract and trustworthy enterprises, the provincial qualified measurement units.
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Here is a step-by-step guide on how to cast polyurethane prepolymers:
1. Prepare the mold: Clean the mold thoroughly and ensure it is free from any debris or contaminants. Apply a mold release agent to facilitate the easy removal of the cured polyurethane.
2. Measure and mix the components: Measure the desired amount of polyol and isocyanate components. The specific ratio will depend on the desired properties of the final product, which can be found in the product's technical data sheet. Pour the measured components into a clean mixing container.
3. Mix the components: Use a mechanical mixer or a high-speed drill with a mixing attachment to thoroughly mix the polyol and isocyanate components together. Make sure to mix for the recommended amount of time specified by the manufacturer to ensure complete homogeneity.
4. Degassing: After mixing, it is important to degas the mixture to remove any trapped air bubbles. This can be done by placing the mixture in a vacuum chamber and applying vacuum pressure for a specified period of time. Alternatively, a vacuum degassing unit can be used.
5. Pouring the mixture: Once the mixture is properly degassed, pour it into the prepared mold or container. Take care to avoid introducing any additional air bubbles during the pouring process.
6. Curing: Allow the poured mixture to cure at room temperature or, if necessary, in a temperature-controlled environment. The curing time will vary depending on the specific polyurethane prepolymer used and the desired hardness or flexibility of the final product. Follow the manufacturer's recommendations for curing time and temperature.
7. Demolding: After the polyurethane has fully cured, carefully remove it from the mold or container. Use caution to prevent any damage to the cured part.
8. Post-curing (optional): Depending on the specific polyurethane prepolymer used, post-curing may be required to optimize the material's properties. This can be done by subjecting the cured part to elevated temperatures for a specific period of time.
It is important to note that casting polyurethane prepolymers requires proper safety precautions, such as wearing appropriate personal protective equipment (PPE) and working in a well-ventilated area. Always follow the manufacturer's instructions and guidelines for handling and working with polyurethane prepolymers.
Motorcycle Scooter Tyre/Tire 400-10
Model NO.: 400-10
Tire Hierarchy: 8pr
Customized: Customized
Cord Material: Nylon
Condition: New
Delivery Time: Within 30 Days
Are You Factory?: Yes
Export Market: South America and Africa
Material: 50% Natural Rubber
Trademark: oguan
Transport Package: Customized According to Customer′s Request
Specification: 400-10
Origin: Qingdao
HS Code: 40114000
Product Description