Description
Red PES Pellets – High-Temperature Engineering Plastic for Identification, Safety & Performance
Red PES (Polyethersulfone) Pellets are colored engineering-grade pellets designed for applications where both high-performance material properties and visual part identification are required. With its inherent thermal stability, chemical resistance, and durability, PES serves as a reliable and cost-effective alternative to higher-priced PEI (Polyetherimide) in many demanding environments. The distinct red color allows for easy product coding, quality control, and end-use part recognition.
Material Properties & Key Advantages:
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High Heat Resistance – Suitable for continuous use up to 200°C, ideal for sterilizable and high-temperature applications
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Excellent Chemical & Hydrolytic Stability – Resistant to oils, detergents, and many chemicals; safe for medical and food-contact uses when compliant
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Inherent Flame Retardancy – Low smoke emission, meets various industry safety standards
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Durable & Washable – Maintains properties through repeated washing and sterilization cycles
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Color-Coded & Consistent – Uniform red pigmentation ensures batch-to-batch consistency and easy identification during production
Common Applications:
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Medical device components (housings, connectors, surgical tools)
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Electrical insulation parts, connectors, and coil bobbins
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Automotive under-hood sensors and fluid handling components
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Filter housings and membrane supports (PES filter material)
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Industrial machinery parts requiring high strength and thermal stability
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Textile and technical fibers where color integrity is important
Why Choose Our Red PES Pellets?
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Low Minimum Order Quantity (MOQ) – We support both small-batch prototyping and volume production
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Fast Lead Times & Global Shipping – Reliable delivery to North America, Europe, Asia, and worldwide
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Technical & Customization Support – We collaborate closely to meet your specific material requirements
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Quality Guaranteed – Every batch is tested for performance, color consistency, and compliance
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Competitive Pricing – A cost-efficient alternative to PEI and PEEK in suitable applications
Samples are available for testing and validation (sample fee applies). Contact us today with your project details to receive a technical datasheet and pricing.

