Polyurethane Elastomer BU P400
Overview
Polyurethane Elastomer BU P400 is a versatile synthetic material known for its exceptional durability and elasticity. It belongs to the thermoset polyurethane family, offering a balance of hardness and flexibility tailored for demanding industrial environments. Its formulation can be adjusted to meet specific performance requirements, making it a preferred choice for engineers and manufacturers. Unlike conventional rubber, BU P400 exhibits superior resistance to abrasion, tearing, and compression set. It is commonly processed through casting, extrusion, or molding techniques, depending on the application. The material's adaptability to additives (e.g., UV stabilizers, flame retardants) further expands its utility across sectors.
Physical and Chemical Properties
BU P400 displays a Shore hardness range of 70A–95A, allowing customization for soft cushioning or rigid structural components. Its tensile strength typically exceeds 30 MPa, with elongation at break rates of 300–600%, ensuring resilience under dynamic loads. The elastomer maintains performance across temperatures from -40°C to 80°C, though prolonged exposure to extreme heat may degrade properties. Chemically, BU P400 resists oils, greases, and mild acids, making it suitable for machinery parts exposed to lubricants. However, it is susceptible to hydrolysis in humid conditions unless formulated with hydrolytic stabilizers. Its low moisture absorption (<2%) minimizes dimensional changes in wet environments.
Main Applications
The primary use of BU P400 is in industrial components subjected to high wear. For instance, it is widely employed in conveyor belt rollers for mining and packaging industries, where its abrasion resistance prolongs service life. Similarly, hydraulic seals and gaskets benefit from its oil resistance and elasticity. Other notable applications include shock-absorbing pads for heavy machinery, custom-molded parts for automotive suspensions, and coatings for pipeline interiors to reduce friction. In the printing sector, BU P400 rollers ensure precise ink transfer due to its consistent surface properties.
Safety and Storage
BU P400 is non-toxic in its solid form but requires precautions during processing. Machining or grinding generates dust, which should be controlled via ventilation or respirators to prevent respiratory irritation. Uncured prepolymer components (if applicable) may contain isocyanates, necessitating skin and eye protection. Storage recommendations include keeping the material in original packaging to prevent contamination. Avoid stacking heavy items on cast sheets to prevent deformation. Shelf life is typically 12–18 months when stored below 25°C and 50% relative humidity.
B2B Procurement Guide
When sourcing BU P400, prioritize suppliers with ISO certification to ensure consistent quality. Request technical datasheets detailing hardness, tensile modulus, and compression set values. For large-scale projects, inquire about custom formulations (e.g., enhanced UV resistance for outdoor use). Lead times vary; standard grades are often ready for shipment, while custom orders may require 4–6 weeks. Consider logistics: bulk shipments reduce costs, but ensure climate-controlled transport for temperature-sensitive batches. Negotiate MOQs (Minimum Order Quantities) to align with production schedules.
Related Manufacturers
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