Applications of EMS-Grivory Grilamid® L 20 G grey 9280 Nylon 12, Dry in Industrial Manufacturing

Our EMS-Grivory Grilamid® L 20 G grey 9280 Nylon 12, Dry supplies advanced solution capabilities for high-performing industrial sectors requiring precision, chemical resilience, and strict conformity to global standards. Below, we outline core downstream applications and critical details for each demanding segment relying on this specialty polyamide.

1. Fuel Line and Fuel System Tubing

The automotive and heavy vehicle industry uses this grade of Nylon 12 for manufacturing fuel line systems and tank ventilation tubing due to its chemical resistance to gasoline, diesel, and biofuels. Its controlled moisture uptake and flexible mechanical strength ensure dimensional stability, ease of processing, and robust operation in under-the-hood conditions. Manufacturers often select this material for parts requiring burst resistance, environmental ageing tolerance, and compatibility with push-to-connect fittings.

Industry compliance standards

• SAE J2260 (Non-metallic Fuel System Tubing)
• ISO 7628 (Road vehicles — Thermoplastics tubing for air braking systems)
• US EPA CFR 40 Part 1060 (Permeation emissions)
• REACH and RoHS Directives (Material safety and substance restrictions)

Typical usage ratio

• Used at 100% for monolayer or 60–80% in multilayer extrusions (with tie layers and EVOH barriers as needed for composite tubing)
• Ratio may be adjusted based on desired permeation performance and mechanical flexibility requirements

Downstream process integration

• Direct extrusion as tubing core or outer layer after drying, often via co-extrusion with oxygen barrier resins
• Welding and overmolding at automated assembly lines for complex fuel system routing
• Precision cutting, surface finishing, and batch inspection before automotive QC

Final product types

• Automotive fuel lines (mono/multilayer)
• Tank ventilation tubes
• Quick connector fluid transfer tubes
• SCR (Selective Catalytic Reduction) urea delivery tubing

2. Pneumatic and Hydraulic Control Tubing

Industrial automation relies on high-purity, chemically inert polyamides in pneumatic and hydraulic control lines. Nylon 12’s low moisture uptake and high impact strength ensure process reliability in pressurized air and hydraulic oil conduits. Plants using automated robotics and conveyance systems install these tubes for predictable flexibility and kink resistance in tight routing environments. Process control manufacturers specify this grade for line durability, ease of identification (color coding), and consistent extrusion quality.

Industry compliance standards

• ISO 14743 (Pneumatic fluid power—Fittings with outside diameter)
• DIN 73378/74324 (Polyamide conduits for pneumatic and hydraulic controls)
• EN 45545-2 (Fire safety for rail applications)
• ATEX Certification (for use in potentially explosive environments if required)

Typical usage ratio

• Typically 95–100% in mono-extrusion, optionally blended up to 10% with masterbatches for specific color or antistatic properties
• Usage ratio subject to end-use temperature and pressure specifications

Downstream process integration

• High-speed precision extrusion and calibration
• Inline laser marking or surface identification for traceability
• Cutting, bundling, and end-fitting assembly for direct shipping to OEMs

Final product types

• Pneumatic control tubes (industrial automation)
• Hydraulic signal lines
• Railway pneumatic system conduits
• Air-brake system tubes for commercial vehicles

3. Wire and Cable Sheathing for Harsh Environments

This specialty Nylon 12 grade finds routine use as a protective sheath in industrial, automotive, and communication wiring assemblies exposed to chemicals, abrasion, and temperature fluctuations. Compounders and cable manufacturers integrate the raw material for its smooth extrusion, flame retardancy when compounded, and retention of flexibility at low temperatures. Its hydrolysis resistance and non-corrosiveness ensure system uptime in demanding infrastructure and electrical installations.

Industry compliance standards

• UL 62 and UL 758 (Appliance Wiring Material and Flexible Cords)
• VDE 0281/0282 (Flexible cables and insulated wires)
• IEC 60332 (Flame retardance; when suitably compounded)
• RoHS Directive 2011/65/EU

Typical usage ratio

• Applied at 70–100% as primary sheath or insulation layer
• Adjustable with UV or flame retardant masterbatches added up to 30% as per end-use fire safety

Downstream process integration

• Dry blend feeding into single or multi-layer cable extrusion lines
• Direct extrusion over copper, aluminum, or fiber core conductors
• Cross-linking, spooling, and high-voltage post-extrusion testing

Final product types

• Automotive wire harness sheathing
• Flexible data and signal cabling
• Sensor and actuator cable insulation
• Underground and underwater communication cable jacketing

4. Precision Injection-Molded Medical Device Components

Medical device OEMs and contract manufacturers use Nylon 12 for components exposed to bodily fluids, medication solvents, and sterilization cycles. This grade suits fluid delivery connectors, catheters, and housing structures requiring both biocompatibility and resistance to medical disinfectants. Medical formulators value the material’s purity profile, low water uptake, and excellent dimensional stability during high-cavity molding and post-mold sterilization.

Industry compliance standards

• ISO 10993-5, -10, -11 (Biological evaluation of medical devices)
• USP Class VI plastics (Biological reactiveness)
• FDA 21 CFR 177.1500 (Permissible for food contact; relevant for medical disposables)
• ISO 13485 QMS for device manufacturers

Typical usage ratio

• Used at 100% for molded medical components requiring purity and traceability
• Colorant or radiopaque additive loads generally below 3% for regulatory compliance

Downstream process integration

• Preparation under cleanroom protocols, including controlled drying
• High-precision injection molding in multicavity tools
• Post-mold annealing, ultrasonic welding, and ethylene oxide/gamma sterilization

Final product types

• Luer lock connectors and fittings
• Infusion and dialysis filter housings
• Catheter components
• Disposable surgical device parts

5. Additive Manufacturing – 3D Printing of Functional Prototypes and End-Use Parts

In industrial additive manufacturing, Nylon 12 offers high layer adhesion, thermal resistance, and mechanical properties suitable for selective laser sintering (SLS) and fused filament fabrication (FFF). Research and prototyping labs, as well as OEMs, rely on consistent powder flow, low warpage, and long-term part durability. Engineers specify this polyamide for on-demand tooling, jigs, and low-volume custom parts to accelerate product development cycles and reduce time to market.

Industry compliance standards

• ASTM F3091/F3091M (Additive manufacturing — SLS of plastic materials)
• ISO/ASTM 52921 (Additive manufacturing — Standard terminology)
• Application-specific in-house QC protocols for aerospace and automotive

Typical usage ratio

• Used at 100% in SLS or FFF processes
• Recirculated powder typically blended at 70–80% virgin material, depending on property retention targets

Downstream process integration

• Powder mixing and sieving under humidity control
• Layer-wise SLS powder bed formation or direct filament extrusion in FFF systems
• Post-processing steps: depowdering, dyeing, surface smoothing

Final product types

• Functional jigs and fixtures for automotive assembly
• Custom brackets and housings for industrial automation
• Bio-compatible dental splints and guides (when tested for medical applications)
• End-use mechanical parts for low- to medium-volume production