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

As an established chemical raw material producer, we supply EMS-Grivory Grilamid® L 16 GM nat Nylon 12, Dry, to specialized manufacturing sectors requiring high-performance polyamides with excellent chemical resistance, low water absorption, and reliable mechanical performance. Below are key industrial downstream channels for large-scale application of this grade.

1. Automotive Pneumatic Tubing and Air Brake Hose Manufacturing

Automotive OEMs and first-tier suppliers use this nylon 12 compound for critical pneumatic tubing and air brake hoses. Its low moisture uptake offers dimensional stability under fluctuating temperatures and humidity, crucial for consistent air flow and pressure reliability. High chemical resistance protects against road salt and aggressive underbody environments. Formulators incorporate the material into multilayer extrusion lines, blending it as the core or external layer depending on the application's exposure profile.

Industry compliance standards

• SAE J844 (Nonmetallic Air Brake Tubing)
• DIN 73378/74324 (Nylon Tubing for Automotive Use)
• FMVSS 106 (Brake Hoses - US DOT)
• ISO 7628 (Road Vehicles - Brake Tubing)

Typical usage ratio

• 100% as primary polymer for single-layer extrusion
• 60%-80% in co-extrusion multilayer systems, balance other engineered polyamides for cost or flexibility

Downstream process integration

• Direct dry-blend feeding to extrusion lines
• Co-extrusion with adhesion promoters for multilayer structures
• Online laser or inkjet marking post-extrusion
• Hot-air or IR oven for thermal post-curing

Final product types

• DOT-approved air brake hoses
• Pneumatic control tubing for trucks and trailers
• Hydraulic return lines for construction vehicles
• Underbody quick-coupling fuel system lines

2. Fuel System Line and Vapor Barrier Tubing

Tier-1 automotive suppliers select this material for precision fuel system tubing, particularly where permeability and long-term chemical resistance define system safety and emission performance. Its resistance to ethanol/gasoline blends and aggressive hydrocarbons allows regulatory compliance in evaporative emissions and fuel handling assemblies. Process engineers specify the material for multilayer extrusions tailored for vapor barrier effectiveness.

Industry compliance standards

• CARB LEV II / EPA Tier 3 (Permeation requirements for fuel lines)
• SAE J2260 (Nonmetallic Fuel System Tubing)
• ISO 15500-12 (CNG fuel system assembly)
• REACH & ELV (European chemical and end-of-life vehicle directives)

Typical usage ratio

• Up to 85% in co-extruded barrier layer construction
• Varies 50%-70% when blended with EVOH or other functional barrier layers for further permeability reduction

Downstream process integration

• Continuous extrusion using precisely controlled melt temperatures
• Co-extrusion with EVOH or fluoropolymers for multilayer tubes
• Inline laser measuring for wall thickness control
• Manual or automatic thermal forming for custom assemblies

Final product types

• Low-permeability fuel feed and return lines
• Automotive tank ventilation tubing
• Onboard refueling vapor recovery (ORVR) assemblies
• Motorcycle and small engine vapor barrier lines

3. Electrical and Electronics Wire & Cable Sheathing

Electronics and e-mobility equipment makers employ this nylon 12 grade as a jacketing material for specialty wire and cable applications. Its dielectric properties, resistance to hydrocarbons, and mechanical resilience under bending and heat cycles make it preferred in low- and mid-voltage assemblies, sensors, and charging systems. The fully dried granulate ensures stable extrusion and surface finish without voids or surface defects.

Industry compliance standards

• UL 62 (Flexible Cord and Cable)
• IEC 60332-1 (Flame Retardant)
• VW-1 (Vertical Wire Flame Test)
• RoHS and REACH (Material safety compliance)

Typical usage ratio

• 80%-100% in primary sheathing for low voltage
• 20%-40% in blends with impact modifiers or flame retardants for custom jacketing

Downstream process integration

• Dry compound dosing to cable extrusion lines
• Crosshead extrusion over primary wire conductor insulation
• Continuous water-cooling and spark testing for insulation verification
• Post-production cut, strip, and reel assembly

Final product types

• ABS sensor cable jackets
• Automotive low-voltage wiring looms
• Charging cable outer jackets (EV & hybrid)
• Industrial servo and control cable sheathing

4. Medical Device Catheter and Tubing Extrusion

Medical OEMs rely on nylon 12 in the production of flexible catheter shafts and diagnostic tubing due to its biocompatibility, smooth surface finish, and kink resistance. It provides reliable mechanical response for interventions and withstands standard sterilization methods. Formulators implement close control of drying and melt extrusion to prevent inclusions and maintain consistent inside diameters critical for medical delivery devices.

Industry compliance standards

• ISO 10993 (Biological Evaluation of Medical Devices)
• USP Class VI (Plastic Materials for Medical Use)
• ISO 13485 (Medical Device Quality Management)
• FDA 21 CFR 177.1500 (Polymers for Food Contact - Medical Guidance)

Typical usage ratio

• 90%-100% in single-layer catheters
• 60%-80% as outer sheath in multi-material catheter systems, complemented by other functional polymers for torque or radiopacity

Downstream process integration

• Inline blending and vacuum drying before microbore extrusion
• Extrusion with integrated laser diameter control
• Segmented co-extrusion for multilumen and multi-layered catheter design
• Sterilization compatibility testing post-extrusion (EtO, Gamma, or Steam)

Final product types

• Intravenous catheter sheaths
• Urological and vascular guide tubes
• Diagnostic probe casings
• Disposable surgical suction and irrigation tubes

5. Industrial Fluid Transfer and Pneumatic Line Production

Factory automation and industrial equipment suppliers make use of this nylon 12 compound in the extrusion of flexible pneumatic and hydraulic transfer lines. The material resists cracking and stiffening under aggressive lubricants, oils, and high-cycle flexing, making it suitable for air, oil, and chemical transfer applications in demanding plant environments. Direct dosing of dried granules into high-speed extrusion with precise temperature control allows manufacturers to achieve uniform wall thickness and reliable bend performance.

Industry compliance standards

• ISO 8573-1 (Compressed Air - Purity classes)
• EN 61386 (Conduit Systems for Cable Management)
• DIN 74324 (Plastic Tubes for Pneumatic Equipment)
• REACH (EU 1907/2006 - Chemical Safety)

Typical usage ratio

• 70%-100% in monolayer pneumatic hose
• 30%-60% as inner liner in co-extruded flexible hoses requiring special chemical or wear resistance

Downstream process integration

• Direct extrusion with air or water cooling
• Co-extrusion with different flex modulus layers for hybrid hoses
• Laser gauging for precision dimensioning
• Cut-to-length and automated inline printing

Final product types

• Push-to-connect pneumatic lines
• Flexible fluid transfer hoses for robotic cells
• Oil and coolant transport tubes
• Protective conduit for data & control cabling

6. Sporting Goods Components (Bike Air Pumps and Inflatable Equipment)

Leading brands in cycling and inflatable sports equipment integrate this material into the manufacture of precision air pump tubing, inflation valves, and pressure retaining chambers. Its impact and abrasion resistance supports repeated use, while chemical inertness ensures durability when in contact with lubricants and adhesives used during equipment assembly or maintenance. Fine gauge extrusion and injection molding provide consistent part geometry.

Industry compliance standards

• EN 16054 (Inflatable Recreational Equipment)
• ISO 4210 (Safety requirements for bicycles - Part quality)
• RoHS Directive (2011/65/EU) for non-electrical accessories
• Consumer Product Safety Improvement Act (CPSIA) for youth sporting goods

Typical usage ratio

• 85%-100% for extrusion of air hose and inflation adapters
• 50%-70% in blends for valves requiring enhanced sealing with elastomers

Downstream process integration

• Monolayer and co-extrusion for flexible hose production
• Precision injection molding for high-pressure valve bodies
• Surface conditioning and solvent bonding in assembly lines
• Pressure and fatigue test validation

Final product types

• Bicycle air pump tubing
• Inflation valve housings for SUPs and rafts
• High-pressure hand pump barrels
• Portable sports inflation adapters and connectors

7. Industrial 3D Printing (Selective Laser Sintering, SLS) Powder Modification

Additive manufacturing service providers and in-house prototyping labs adapt nylon 12 pellets into powder feedstock for SLS processes. The specific grade’s controlled particle morphology, high purity, and dryness contribute to reliable layer sintering, minimal warping, and repeatable mechanical performance across batches. Granulate may serve as direct feedstock through cryogenic milling or as a blend constituent for tuning flow and sintering kinetics.

Industry compliance standards

• ASTM F3091 (Additive Manufacturing Polymers – SLS)
• ISO/ASTM 52921 (Additive Manufacturing – Material Characterization)
• RoHS and REACH (Material safety for printed end parts)
• UL 94 HB (Flammability rating for prototype parts)

Typical usage ratio

• Up to 100% for custom powder production (cryomilling granules)
• 30%-70% in surface modified or pre-compounded powder blends to alter mechanical or printability traits

Downstream process integration

• Primary granulate milling and classification
• Powder surface conditioning and flow enhancement
• Direct feed to selective laser sintering powder hoppers
• Powder recycling and refreshing protocols

Final product types

• Functional SLS printed brackets and housings
• End-use rapid prototypes for automotive, medical, and aerospace
• Small-batch, customized mechanical test specimens
• Custom tooling and assembly jigs for industrial lines