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High-performance thermoplastic elastomer (TPE) formulated for API-compliant sealing and fluid handling applications.
Excellent resistance to hydrocarbons, mineral oils, and common industrial solvents under moderate temperature conditions.
Consistent dimensional stability and low compression set for reliable long-term gasket and seal performance.
Halogen-free and RoHS-compliant formulation supporting environmentally responsible manufacturing practices.
Optimized for DN 40 (1½ inch) pipe connections with Class 1 pressure rating per API RP 14E guidelines.
Offshore and onshore oil & gas pipeline flange gaskets for low-pressure process lines.
Sealing elements in API-compliant sampling valves and instrument isolation manifolds.
Gland packing and static seals in subsea control system housings.
Non-metallic components for chemical injection skids operating under API Class 1 service conditions.
Replacement material for legacy elastomers in aging API-standardized metering and dosing equipment.
| Chemical Type | Thermoplastic Elastomer (TPE) – Styrenic Block Copolymer (SBC) base |
| Product Form | Compression-molded gasket sheet or precision die-cut ring |
| Appearance | Uniform black, smooth surface, free of voids or extrusion defects |
| Primary Applications | Static sealing for API DN 40 flanged connections at Class 1 pressure rating |
| Operating Temperature Range | –20 °C to +80 °C (short-term peak up to +100 °C) |
| Hardness (Shore A) | 65 ± 3 |
| Density | 0.98–1.02 g/cm³ |
| Compliance | API RP 14E, ASTM D2000 (Standard Classification System for Elastomers), RoHS Directive 2011/65/EU |
Q1: What is the primary function of API DN 40/CL1 TPE in polymer formulations?
A: API DN 40/CL1 TPE functions as a thermoplastic elastomer modifier, enhancing flexibility, impact resistance, and melt-processability in rigid or semi-crystalline thermoplastics—particularly in applications requiring dynamic mechanical performance and recyclability.
Q2: Is API DN 40/CL1 TPE suitable for food-contact or medical-grade applications?
A: API DN 40/CL1 TPE is not pre-certified for direct food-contact or implantable medical use. Its suitability depends on final formulation validation, including extraction testing and regulatory review by the end-user’s compliance team. It may be considered for non-invasive, secondary packaging or industrial components where full biocompatibility is not required.
Q3: How does API DN 40/CL1 TPE differ from conventional TPEs based on SEBS or TPO chemistries?
A: Unlike many SEBS- or PP-based TPEs, API DN 40/CL1 TPE features a tailored polyolefin-thermoplastic polyurethane hybrid architecture, offering improved thermal stability during multiple extrusion cycles and better compatibility with polar engineering resins—without requiring reactive compatibilizers in most blends.
Q4: What processing methods are recommended for API DN 40/CL1 TPE?
A: It is optimized for standard thermoplastic processing techniques including injection molding, extrusion, and two-shot overmolding. Pre-drying is generally advised when moisture sensitivity is a concern in high-precision applications, though it exhibits lower hygroscopicity than many conventional TPU-based TPEs.
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