Applications of EMS-Grivory Grilamid® L 20 LM Nylon 12, Conditioned in Industrial Manufacturing

We supply EMS-Grivory Grilamid® L 20 LM Nylon 12, Conditioned, which is widely integrated as a high-performance engineering polymer across demanding industrial manufacturing chains. Its balanced combination of chemical resistance, flexibility, mechanical toughness, and stable processing properties defines its role in critical downstream product categories. Please see detailed application scenarios and their technical parameters below.

1. Automotive Fuel Line and Fluid Handling Systems

Downstream automotive manufacturers consistently utilize conditioned Nylon 12 in fabricating multilayer fuel lines, vapor recovery lines, and selective catalytic reduction (SCR) urea solution lines. The resin's low moisture uptake and strong resistance to chemical permeation enable stable dimensional control and long-term service life in contact with modern fuels and aggressive additive packages. Leading OEMs require stable melt flow and highly controlled additive formulation to support extrusion blow molding, co-extrusion, and high-frequency welding of both rigid and flexible line architectures for permanent under-the-hood installations.

Industry compliance standards

• SAE J2260 (Nonmetallic Fuel System Tubing)
• ISO 7628 (Road Vehicles - Thermoplastic Tubing for Liquids in Contact with Hydrocarbons)
• US EPA permeation requirements (40 CFR § 1060)
• UN/ECE R67, R110 (LPG and CNG fuel system material testing)

Typical usage ratio

• Outer or core liner: 60-100 wt% in multilayer tubing structures, adjusted case-by-case per wall thickness and permeation needs relative to PA6/PA11 blends or barrier co-extruded layers.

Downstream process integration

• Direct batch blending then single or tandem-screw extrusion for multilayer tubing
• Incorporation of carbon black or UV stabilizers in compounding
• Post-extrusion annealing and pressure testing lines pre-assembly

Final product types

• Fuel supply lines
• Evaporative emissions (EVAP) vapor lines
• AdBlue® (urea solution) delivery lines for SCR systems
• In-tank pickup/return tubes and quick-connector assemblies

2. Pneumatic and Hydraulic System Tubing

Conditioned Nylon 12 maintains pressure stability, burst strength, and deformation resistance essential for reliably transmitting compressed air and hydraulic fluids in industrial equipment, commercial vehicles, and automation systems. Our material supports batch-blended or inline-extruded tube profiles requiring close wall-thickness tolerance and consistent flexural modulus across variable temperature cycles. Downstream users prioritize this material for long-lifetime performance under exposure to oils, heat, and repeated impact or vibration.

Industry compliance standards

• DIN 74324 / DIN 73378 (Polyamide air brake tubing and fuel lines)
• ISO 7628 (Thermoplastic pipes for pneumatic/hydraulic applications)
• European Directive 2006/42/EC (Machinery Safety)
• REACH Regulation (EC) 1907/2006 for material safety

Typical usage ratio

• Typically 100% PA12 for monolayer constructions; modified with small amounts (<10%) of plasticizer or impact modifier depending on kinetic stress and installation radius.

Downstream process integration

• Heat-stabilized or lubricant-modified masterbatch compounding
• Precise extrusion under controlled cooling to ensure roundness
• Laser printing or ink-jet marking inline after diameter calibration

Final product types

• Air brake lines
• Pneumatic actuation tubing
• Hydraulic pilot circuit tubing
• Automation and robotics cabling conduit

3. Medical Catheter and Component Manufacturing

Nylon 12, conditioned for dimensional accuracy and consistent mechanical response, is selected by medical technology manufacturers for select catheter shafts, tubing, and medical component housings where kink resistance, low water absorption, and stress crack resistance are prioritized. Its non-leaching, physiologically inert profile and ability to withstand standard ETO and gamma sterilization cycles meets regulatory and biocompatibility requirements for single-use and semi-durable devices used in clinical environments.

Industry compliance standards

• ISO 10993 series (Biological evaluation of medical devices)
• USP Class VI (Biocompatibility testing)
• FDA 21 CFR 177.1500 (Polymers for food contact / indirect medical use)
• ISO 80369 (Small-bore connectors for liquids and gases in healthcare applications)

Typical usage ratio

• Monolayer components: 95-100% PA12
• Co-extruded or insert-molded parts: 20-80% PA12 as a sheath, liner, or bonding layer, depending on stiffness and bond strength to other engineering polymers.

Downstream process integration

• Precision compounding with color masterbatch or radiopaque fillers
• Cleanroom extrusion or injection molding with validated master files
• Post-processing: ETO/gamma sterilization; ultrasonic or RF welding for device assembly

Final product types

• Catheter shafts and tubes
• Medical cable jacketing and connectors
• Single-use infusion and drainage tubing
• Cartridge housings for diagnostic applications

4. Electrical and Electronics Cable Sheathing

Downstream producers rely on Nylon 12 for primary and secondary jacketing of specialty electrical and fiber-optic cables, particularly where retained flexibility, flame retardancy, and environmental resistance are critical. Its inherent dielectric strength upholds safety margins for low- and medium-voltage applications while the resin sustains extrusion continuity and uniform wall build. Users select customized additive and pigment packages to comply with halogen-free and low-smoke requirements in data, sensor, and control cable manufacturing.

Industry compliance standards

• UL 62 / UL 1581 (Flexible cord/cable safety and material performance)
• IEC 60754-1/-2 (Halogen acid gas emission and smoke generation limits)
• RoHS Directive (EU) 2011/65/EU for hazardous substances
• EN 50363-10-2 (Insulating and sheathing materials for power cables)

Typical usage ratio

• Sheathing: 80-100 wt% PA12 in single- or multi-layer jackets; blended with up to 20% flame retardant masterbatches based on target fire/smoke ratings and processability.

Downstream process integration

• Continuous extrusion over copper, fiber, or electronic bundle cores
• Inline crosslinking using electron beam or chemical curing, if required
• Color stripe or coding ink integration during jacketing

Final product types

• Data and instrumentation cables
• Offshore and industrial sensor wiring
• Railway and rolling stock control cables
• Fiber-optic loose tube and tight-buffered cable sheathing

5. Powder Coating for Metal Protection

Conditioned Nylon 12 in powder form is specified by coating companies to formulation lines for electrostatic spray or fluidized bed application onto metal substrates. The polymer fuses smoothly at controlled bake temperatures, forming durable, abrasion-resistant, and corrosion-inhibiting coatings suitable for both interior and exterior metal structures. The baking process preserves the material’s chemical resistance and impact absorption, meeting rigorous requirements for potable water contact or industrial outdoor exposure.

Industry compliance standards

• EN 13468 (Pipe and tank coatings for potable water)
• BS 6920 (Suitability of non-metallic materials for use in contact with water intended for human consumption)
• ISO 12944-5 (Protective coatings for steel structures)
• NSF/ANSI 61 (Drinking water system components – health effects)

Typical usage ratio

• Powder formulation: 90-100% PA12 base; small fractions (<10%) of flow agent, charge modifier, or pigment for color and electrostatic performance.

Downstream process integration

• Powder blending (premix), then extrusion and grinding for size specification
• Electrostatic spray application or fluidized bed immersion on pre-treated metals
• Bake-off and controlled cooling to ensure adhesion and coverage

Final product types

• Municipal water pipeline linings
• Offshore and marine structural coatings
• Food processing machinery frames
• Architectural hardware, fence, and railing coatings