Overview
PU-SX672P is a specialized polyurethane formulation designed for demanding industrial applications. Polyurethanes are polymers composed of organic units linked by carbamate (urethane) bonds, offering a unique balance of toughness and flexibility. This grade is engineered to withstand high mechanical stress, making it ideal for components like seals, rollers, and coatings. The material's versatility stems from its tunable properties, which can be adjusted during manufacturing to meet specific hardness, elasticity, or chemical resistance requirements. Its popularity in B2B markets arises from its cost-effectiveness compared to rubber or metals, coupled with superior performance in many environments.
Physical and Chemical Properties
PU-SX672P exhibits a density range of 1.1-1.3 g/cm³, which contributes to its lightweight yet durable nature. Its melting point typically falls between 150-200°C, though it begins to degrade at higher temperatures rather than boiling. The material is insoluble in water but can dissolve in polar organic solvents like dimethylformamide (DMF). Key mechanical properties include a Shore hardness range of 70A-95A, tensile strength of 20-40 MPa, and elongation at break exceeding 300%. These characteristics ensure resistance to abrasion, tearing, and compression set, even under prolonged stress. Chemically, it resists oils, greases, and mild acids but may degrade in strong alkalis or concentrated oxidizing agents.
Main Applications
In industrial settings, PU-SX672P is widely used for manufacturing conveyor belt rollers due to its energy-absorbing properties and noise reduction capabilities. It also serves as a preferred material for hydraulic seals and gaskets in machinery, where its flexibility prevents leakage under dynamic conditions. The coatings industry utilizes this polyurethane for protective layers on equipment subjected to abrasive wear, such as mining tools or agricultural machinery parts. Additionally, its fatigue resistance makes it suitable for flexible couplings and vibration dampers in automotive and aerospace applications. Custom-molded components, like bushings or liners, benefit from its combination of load-bearing capacity and resilience.
Safety and Storage
While PU-SX672P is generally safe to handle, precautions should be taken to avoid inhalation of dust generated during machining or grinding. Adequate ventilation and personal protective equipment (PPE) like gloves and masks are recommended. The material is non-flammable but may emit toxic fumes if overheated during processing. For storage, maintain temperatures below 30°C in airtight containers to prevent moisture absorption, which can affect processing properties. Shelf life typically exceeds 12 months when stored properly. Disposal should follow local regulations for polymer waste, with recycling being the preferred option for scrap material.
B2B Procurement Guide
When sourcing PU-SX672P, prioritize suppliers who provide technical data sheets (TDS) with verified test results for key parameters like hardness, tear strength, and compression set. Certifications such as ISO 9001 or industry-specific standards (e.g., FDA compliance for food-grade applications) add credibility. Bulk purchases (500kg+) often attract discounts of 10-20%. Consider regional logistics—some formulations may require temperature-controlled transport. For custom profiles or molded parts, engage with manufacturers offering CNC machining or injection molding services to minimize secondary processing costs. Sample testing is advisable to confirm compatibility with end-use conditions.
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