Applications of EMS-Grivory Grilamid® L 25 W 20 X Nylon 12, Dry in Industrial Manufacturing

As the original producer of EMS-Grivory Grilamid® L 25 W 20 X Nylon 12, Dry, we enable precise material integration into demanding industrial manufacturing chains. Our nylon 12 grade is engineered to meet sector-specific performance criteria for critical downstream production lines. Below, we detail its application in verified industrial scenarios, focusing on technical requirements from formulation to end-use product quality.

1. Automotive Fuel Line Systems

Leading global automakers source our nylon 12 for multilayer automotive fuel lines, exploiting its flexibility, chemical resistance, and low permeability to hydrocarbons. The grade performs reliably under fluctuating temperature conditions and exposure to aggressive fuels and biofuels, as well as during high-speed continuous extrusion and co-extrusion line operation.

Industry compliance standards

• SAE J2260 (Non-metallic Fuel System Tubing with One or More Layers)
• ISO 7628 (Thermoplastic Tubing and Hoses for Automotive Fuel Systems)
• REACH Annex XVII (Restriction of hazardous substances in plastic materials)
• OEM-specific technical delivery specifications (e.g., VW TL 52668, GM GMW15482)

Typical usage ratio

• Primary wall: 60–100% of the polyamide fraction; multilayer construction varies between 20% (as inner/outer protective layer) to 100% (single-layer tubing)

Downstream process integration

• Pellets fed into high-speed twin-screw extrusion lines, sometimes combined with EVOH or adhesive tie-layers through co-extrusion
• Inline laser or plasma surface activation for functionalization between layers
• Post-extrusion dimensional QC and hydrostatic pressure testing before cutting to length

Final product types

• Multi-layer fuel pipes for gasoline, diesel, and flex-fuel vehicles
• Vapor return and vent lines for evaporative emission control
• High-pressure fuel injection lines for modern engine platforms

2. Pneumatic Control Tubing for Industrial Automation

Industrial automation system builders rely on our high-purity nylon 12 for manufacturing pneumatic control tubing with stable pressure ratings and resistance to oil mist, humidity, and mechanical stress. This application demands consistent dimensional tolerances and batch-to-batch color stability for complex installation pathways in automated production lines and robotics.

Industry compliance standards

• ISO 14743 (Fittings for polymer tubes in pneumatic fluid power)
• DIN 73378 (Polyamide tubes for fluid systems in industry)
• RoHS Directive (2011/65/EU) compliance for restricted substances
• UL 94 HB (Flammability standards for non-metallic materials)

Typical usage ratio

• 100% as extruded resin for monolayer pneumatic tube production; occasionally, color masterbatch can be incorporated at 1–3% for identification purposes

Downstream process integration

• Direct pellet loading into single-screw extrusion lines with on-the-fly laser marking for traceability
• On-line high-speed diameter measurement with optical sensors
• Water bath calibration and cooling followed by cut-to-length automation

Final product types

• Compressed air lines and control circuit tubing
• Fluid transfer tubes in assembly automation
• Robotics umbilical tubing requiring tight bending radii

3. Medical Device Catheter Components

Medical OEMs select this grade of nylon 12 for precision-extruded catheter shafts and flexible tubing, where biocompatibility, kink resistance, and reliable wall uniformity are vital for minimally invasive devices. Production occurs under GMP-compliant cleanroom conditions to satisfy patient safety requirements and medical industry regulations.

Industry compliance standards

• ISO 10993 Series (Biological evaluation of medical devices)
• USP Class VI tested materials (biological reactivity)
• ISO 13485 (Quality management for medical device manufacturing)
• FDA 21 CFR 820 (Quality system regulation for medical devices)

Typical usage ratio

• 90–100% as base polymer; radiopaque fillers may be added up to 10% to enable x-ray visibility depending on device requirements

Downstream process integration

• Gravimetric blending and drying before entering precision extrusion under controlled temperature and humidity
• Inline wall thickness measurement and laser gauging during catheter production
• Post-extrusion EO or gamma sterilization based on downstream assembler’s workflow

Final product types

• Peripheral vascular catheter shafts
• Urological and neurovascular tubing sets
• Guiding and aspiration catheter bodies for interventional procedures

4. Fiber Optic Sheathing for Telecommunications

Telecommunications cable assemblers adopt our nylon 12 resin for primary and secondary fiber optic sheathing, seeking long-term environmental stability and precise diametric control that withstands outdoor, aerial, and duct installation. The process requires material purity to avoid microcontaminant interference with fiber signal transmission and to guarantee low shrinkage across thermal cycles.

Industry compliance standards

• IEC 60794-1-2 (Cable mechanical property testing)
• TS EN 50290-2-22 (Polymeric sheath materials for telecommunication cables)
• RoHS and REACH certifications
• ISO 9001 (Quality management for telecom cable assemblies)

Typical usage ratio

• 95–100% as the jacketing material; minor pigment or UV stabilizer addition at 1–3% based on final exposure conditions

Downstream process integration

• Granulate fed via gravimetric dosing into extrusion lines equipped with concentricity controllers
• On-line spark testing for dielectric integrity
• Hot-melt bonding over optical core with integrated color striping where required

Final product types

• Outdoor fiber optic cables with UV-stabilized nylon sheath
• Armored cable sheathing for corrosive environments
• Micro-duct and mini-duct fiber assemblies for FTTH infrastructure

5. Sporting Goods – High-Performance Racquet Grommets

Manufacturers of professional-grade tennis and badminton racquets utilize nylon 12 for grommet strips due to its high fatigue endurance, resistance to repeated string impact, and smooth finish that minimizes abrasion. The processing demands accurate molding and low residual moisture for proper mechanical integrity during high-velocity shots and frequent restrings at the top competition levels.

Industry compliance standards

• EN ISO 20344 (Methods for footwear and sporting goods testing – applies for abrasion and mechanical performance)
• Internal athletic brand specifications for durability and chemical safety
• REACH regulations
• ISO 9001 for sporting goods production management

Typical usage ratio

• 95–100% of part weight for injection-molded grommet strips; colorant or processing aid addition max. 3% as required

Downstream process integration

• Material delivered to drying hoppers prior to precision injection molding cycles
• Automated runner separation and inspection for uniformity
• Integration with automated stringing machinery for direct application to racket frames

Final product types

• Grommet and bumper strips for tennis rackets
• Badminton racket grommet sets
• Squash and racquetball frame protection elements