PET&PA Monofilament Braided Sleeving-EX300 Overview

The PET&PA Monofilament Braided Sleeving-EX300 is an expandable textile sleeve braided from a blend of PET and PA monofilaments, engineered for automotive hose, duct, and cable protection. This sleeving expands to several times its relaxed diameter for quick installation over connectors and harness bundles, then contracts elastically to hold the protected component securely. The EX300 carries verified FMVSS 302 flame retardancy certification and achieves ISO 6722-1:2006 Grade 6 abrasion resistance, making the PET&PA Monofilament Braided Sleeving-EX300 a reliable choice for demanding automotive and industrial environments. The working temperature range of -50°C to +150°C ensures stable performance from cold-climate winter starts to sustained high-load engine bay conditions.

Product Features

• Wide Working Temperature Range: -50°C to +150°C. The PET&PA Monofilament Braided Sleeving-EX300 maintains dimensional stability and mechanical integrity throughout this full thermal range. Unlike sleeving materials that become brittle in sub-zero conditions, the PET and PA monofilament blend retains elasticity at low temperatures — an important consideration for cold-climate installation and operation scenarios that are often overlooked during material selection.
• High Expandability. The braided PET and PA monofilament structure allows the sleeve to expand significantly beyond its nominal diameter under radial force, enabling installation over pre-assembled connectors without disassembly. This speeds up harness assembly operations on production lines.
• Easy Installation. The elastic braided structure of the PET&PA Monofilament Braided Sleeving-EX300 installs quickly along hose and cable runs without disassembling connectors or fittings, reducing installation time compared to rigid conduit alternatives.
• Excellent Flame Retardancy — FMVSS 302 Pass. Flame retardancy is a non-negotiable requirement in automotive harness and hose protection. EX300 passes FMVSS 302 testing, providing the certified documentation needed for OEM supplier qualification and compliance filings. Omitting flame retardancy verification at material selection and discovering the gap during an audit is an avoidable project risk.
• Acid, Alkali, and Chemical Resistance. The PET and PA monofilament materials resist petroleum-based fluids, coolants, and chemical media, making the sleeving suitable for engine bay environments where incidental fluid exposure is a normal operating condition.
• Excellent Abrasion Resistance — ISO 6722-1:2006 Grade 6. EX300 achieves Grade 6 on the ISO 6722-1:2006 abrasion resistance test. A common misconception is that a larger sleeving diameter provides stronger abrasion protection. The actual performance drivers are material composition and braid density — factors where the PET and PA monofilament construction of EX300 is specifically optimized.
• Lightweight and Breathable Textile Design. The open braided structure allows air circulation around the protected component, supporting heat dissipation without adding significant weight to the harness or hose assembly.

Performance Parameters

All test values listed are representative results for the PET&PA Monofilament Braided Sleeving-EX300 product line. For specific product test reports, please contact your sales representative. Test parameters may vary by part number and diameter.

Application Scenarios

Automotive Hose and Duct Protection

The primary application of the PET&PA Monofilament Braided Sleeving-EX300 is protection of automotive hoses and air ducts routed through the engine bay and underbody. These routing paths expose sleeving to radiant heat, vibration, abrasive contact with brackets, and periodic splash from engine fluids. EX300 addresses all these factors simultaneously: the -50°C to +150°C temperature rating covers the full automotive thermal cycle, the chemical resistance handles fluid exposure, and the ISO 6722-1 Grade 6 abrasion rating ensures long-term protection against bracket contact.

Automotive Harnesses and Connectors

The expandability of the PET&PA Monofilament Braided Sleeving-EX300 makes it particularly well-suited for harness routing where connectors must remain assembled during installation. The sleeve expands to fit over connector housings, then contracts to secure the bundle. FMVSS 302 certification supports OEM material approval documentation requirements for harness programs.

Machinery and Industrial Cable Management

Beyond automotive use, EX300 protects cables and hoses in machinery environments where abrasion resistance and chemical exposure are daily operating conditions. The breathable textile design supports heat dissipation for cables in thermally constrained equipment enclosures. The availability of eleven standard diameter configurations — from 6 mm to 50 mm reference width — makes it straightforward to match the PET&PA Monofilament Braided Sleeving-EX300 to specific bundle diameters common in industrial cable management applications.

Product Advantages

The PET&PA Monofilament Braided Sleeving-EX300 combines flame retardancy, abrasion resistance, chemical resistance, and wide temperature range in a single expandable textile solution. The PET component provides surface hardness and abrasion resistance, while the PA component contributes toughness and flexibility. This material blend allows EX300 to meet multiple automotive performance requirements simultaneously without the weight and rigidity of corrugated conduit.

For automotive procurement teams, the PET&PA Monofilament Braided Sleeving-EX300 provides a documented performance baseline — FMVSS 302, ISO 6722-1 Grade 6, and a -50°C to +150°C range — aligned with common automotive material specifications. This documented baseline simplifies internal approval processes and reduces qualification risk when presenting documentation to OEM engineering and quality teams.

Specifications

The PET&PA Monofilament Braided Sleeving-EX300 is available in eleven standard configurations covering applicable bundle diameters from 3 mm to 60 mm. Reel lengths range from 100 m to 300 m depending on diameter. Custom lengths and non-standard diameters can be arranged on request. The sleeving can also be cut to fixed lengths as required for specific assembly programs.

Certifications

The manufacturing site producing the PET&PA Monofilament Braided Sleeving-EX300 holds certifications under ISO 9001, IATF 16949, ISO 14001, ISO 45001, and military standard GJB9001C. IATF 16949 certification directly addresses the quality system requirements that automotive Tier 1 and Tier 2 suppliers must document during OEM supplier qualification processes. Having complete certification documentation available at the inquiry stage significantly reduces the risk of delays during supplier audit and material approval reviews.