Applications of EMS-Grivory Grilamid® L 16 nat Nylon 12, Dry in Industrial Manufacturing

EMS-Grivory Grilamid® L 16 nat Nylon 12, Dry, produced in Switzerland, supports precision engineering in demanding industrial sectors by providing distinct properties such as low water absorption, high flexibility, and excellent chemical resistance. Below, we detail its downstream industrial use cases across select application scenarios based on real market practice, highlighting compliance frameworks, formulation ratios, process steps, and finished product categories.

1. Automotive Fuel Line Tubing Manufacturing

Automotive manufacturers use this nylon 12 grade for producing multi-layer fuel and vapor line tubing due to its reliable barrier properties against hydrocarbons and resistance to stress cracking at low temperatures. The pelletized resin is dried, extruded, and drawn into precision tubing that maintains dimensional stability in engine compartment environments, supporting the shift to emission-compliant vehicle designs.

Industry compliance standards

• SAE J2260 (Nonmetallic Fuel System Tubing with One or More Layers)
• ISO 7628 (Road vehicles — Polyamide tubing for air braking systems)
• REACH SVHC – Registration, Evaluation, Authorization and Restriction of Chemicals
• US EPA Clean Air Act evaporative emission standards

Typical usage ratio

• 85–100% base resin by weight for single-layer tubes
• 55–70% in multilayer constructions (with tie layers or adhesion promoters as co-extrudates); adjusted according to required permeability rating and temperature tolerance

Downstream process integration

• Hopper-dried granules fed into twin-screw extrusion lines
• Co-extrusion for multilayer tubing (inner barrier, adhesion layers, outer jacket)
• Laser or infrared cutting to automotive specification lengths
• Hydrostatic leak and geometry tests as part of final QC

Final product types

• Fuel supply lines (engine to tank)
• Vapor recovery tubes (EVAP systems)
• Selective catalytic reduction (SCR) urea delivery tubing
• Automotive air brake system lines

2. Pneumatic System Tubing for Industrial Automation

Engineers select this polymer for pneumatic air tube production inside assembly robots, packaging machines, and diagnostic device frameworks. The resin performs well in precision extrusion, resisting micro-cracking and pressure fatigue, which are key for applications demanding moisture stability and accurate dimension tolerances during rapid-cycling operations.

Industry compliance standards

• ISO 8573 (Compressed air — Contaminants and purity classes)
• EN 61373 (Railway applications — Shock and vibration tests for pneumatic components)
• RoHS compliance (Restriction of Hazardous Substances Directive)
• DIN 74324 (Nylon tubing for air brake systems)

Typical usage ratio

• 98–100% in monolayer pneumatic tube production; no plasticizer required due to intrinsic flexibility
• Additive loads (color masterbatch, UV stabilizers) up to 2% for application-specific needs

Downstream process integration

• Vacuum-dried prior to melt extrusion
• Precision die extrusion into specified tube inner/outer diameters (e.g., 4x6, 6x8 mm)
• Online laser measurement for wall thickness consistency
• Coiling, labeling, and batch leakage testing for regulatory shipment

Final product types

• Pneumatic actuator supply lines
• Robotics joint cable cover tubing
• Pick-and-place system air tubes
• Diagnostic instrumentation compressed air delivery hoses

3. Flexible Packaging Film for Medical Device Sterilization

Converters in the medical sector apply this nylon 12 in multilayer flexible packaging films for device and instrument sterilization pouches. The resin's clean extrusion properties, coupled with its resistance to ethylene oxide and gamma irradiation, help ensure pack integrity and minimize contamination risk during healthcare logistics.

Industry compliance standards

• ISO 11607 (Packaging for terminally sterilized medical devices)
• USP <88> Biological Reactivity – In Vivo
• EN 868 (Packaging materials and systems for medical devices to be sterilized)
• FDA 21 CFR 177.1500 (Nylon resins for food and medical contact)

Typical usage ratio

• 20–40% as the tie/barrier layer in multilayer films, primarily in blends with LDPE, EVA, or PET for heat-sealability
• 100% monolayer for select sterile wrap formats

Downstream process integration

• High-precision vacuum oven drying prior to cast or blown film extrusion
• Multilayer co-extrusion with medical-grade polyethylene and/or ionomer resins
• Inline corona or flame surface treatment for printability
• Slitting and pouch conversion with validated seal strength and pore integrity testing

Final product types

• Sterilization pouches (ETO, gamma, or steam compatible)
• Surgical instrument tray liners
• Medical device overwrap films for hospital sterilization units
• Catheter pouch films

4. Oil and Gas Industry Flexible Pipe Liners

In the oil and natural gas sector, engineers utilize this polyamide as a core material in flexible composite pipes and downhole liner systems, leveraging its chemical resistance to hydrocarbons and sour gases. The material's thermal stability and hydrolytic toughness facilitate its role in highly demanding, safety-critical pipeline installations for offshore and onshore fluid transfer.

Industry compliance standards

• API 15S (Specification for Fiberglass Line Pipe and Tubing)
• ISO 14692 (Petroleum and natural gas industries — Glass-reinforced plastics (GRP) piping)
• NORSOK M-710 (Qualification of Non-Metallic Sealing Materials and Manufacturers)
• DNVGL-RP-F119 (Recommended Practice for Thermoplastic Composite Pipes)

Typical usage ratio

• 60–100% in the fluid-contact inner liner for reinforced flexible pipe (balance reinforced with aramid yarn, steel or other matrix layers)
• Thickness and ratio adjusted per pressure service class and chemical exposure profile

Downstream process integration

• High-shear melt compounding and pelletizing for uniform molecular orientation
• Extrusion or tube forming as internal barrier layer during composite pipe assembly
• Thermal bonding with reinforcement layers (aramid, PE, PVDF)
• Hydrostatic burst and sour gas resistance testing for QA

Final product types

• Flexible riser inner liners for offshore platforms
• Oilfield flowline internal barriers
• Gas transport flexible composite pipes
• Downhole tubing for aggressive fluid service

5. Sporting Goods Precision Components

Producers of high-performance sporting goods select this polymer for precision injection-molded components, targeting sports eyewear frames, archery parts, and bicycle cable housings, exploiting its impact strength at low weight and superior fatigue resistance compared to alternative polyamides. This enhances user safety and extends service life under cyclic load conditions.

Industry compliance standards

• ISO 4210 (Safety requirements for bicycles)
• EN ISO 12312-1 (Eye and face protection — Sunglasses and eyewear frames)
• EN 71-3 (Migration of certain elements – applicable for children’s sporting equipment)
• REACH Annex XVII (Restriction of phthalates and heavy metals)

Typical usage ratio

• 90–100% for eyewear frames and cable housings
• 60–85% in glass-fiber reinforced blends for enhanced dimensional stability in load-bearing accessories

Downstream process integration

• Dried resin directly injected into multi-cavity high-precision steel molds
• Optional compounding with pigments or short glass fiber before molding
• Integrated laser etching or ultrasonic welding for part marking and assembly
• End-use validation including cyclic flexural and impact testing as per product standards

Final product types

• Sports or safety eyewear frames
• Archer’s bow and accessory components
• Bicycle gear cable liners and housing sheaths
• Lightweight ski boot shell inserts

6. Wire and Cable Sheathing for Industrial Electronics

In the field of industrial electronics, cable manufacturers use this nylon 12 for extrusion of protective sheaths and insulation layers on sensor leads, control cables, and high-frequency coaxial cables, taking advantage of its low dielectric loss, hydrolysis resistance, and reliable pliability over a wide temperature span. This supports data fidelity and longevity in industrial automation and instrumentation applications.

Industry compliance standards

• UL 62 (Flexible Cords and Cables)
• VDE 0281/0282 (PVC-insulated cables and sheaths, relevant for non-halogen polymers)
• IEC 60228 (Conductors of insulated cables)
• RoHS and Halogen-Free Material Requirements

Typical usage ratio

• 95–100% for primary jacketing and insulation layers
• Modified with flame retardant masterbatch up to 5% where code requires enhanced fire resistance

Downstream process integration

• Dry-blended and pelletized prior to extrusion
• Direct extrusion onto stranded copper or tinned conductor via crosshead extrusion die
• Continuous online spark and wall thickness testing
• Finished reel winding and batch certification to cable OEM specifications

Final product types

• Sensor cable outer jackets
• Industrial automation control wire insulation
• Data transmission coaxial cable sheaths
• Halogen-free cable assemblies for rail and metro systems