Applications of Evonik VESTAMID® L1670 black 9.7504 Nylon 12 in Industrial Manufacturing

Evonik VESTAMID® L1670 black 9.7504 Nylon 12 supports several critical downstream industries as a high-performance engineering polymer. Our production lines deliver consistent pellet quality for integration in advanced extrusion, injection molding, and compounding processes by customers worldwide. Detailed below are the principal end-use sectors adopting this raw material, including regulatory, processing, and formulation specifics established from experience as a direct manufacturer.

1. Automotive Fuel Line Systems

Leading automotive OEMs and Tier-1 suppliers incorporate this Nylon 12 grade for multilayer fuel and vapor tube construction. Its chemical resistance to fuels, low permeation rate, and stable mechanical properties at -40°C to 110°C drive its preference over alternative polyamides. During coextrusion with adhesive layers and EVOH barriers, processors ensure correct interlayer bonding and dimensional accuracy to meet emission standards. The pigmentation with black masterbatch contributes to UV resistance and external identification.

Industry compliance standards

• US EPA 40 CFR Part 86 Permeation Standard
• SAE J2260 (Non-metallic Fuel System Tubing)
• CARB Title 13, CCR, Section 2235 (California Air Resources Board)
• ISO 7628:2010 (Road Vehicles—Non-metallic Tubing)

Typical usage ratio

• 30–60% by weight in multilayer tubes (varies with barrier layer requirements; adjusted for wall thickness and regulatory testing outcomes)

Downstream process integration

• Feeds main extrusion hoppers in multilayer tube lines
• Combines with adhesive tie resins during in-line coextrusion
• Post-extrusion offline hot stamping or laser marking for OEM traceability

Final product types

• Low-emission fuel pipes (lines for gasoline, diesel, biodiesel blends)
• Vapor return tubes
• SCR (Selective Catalytic Reduction) urea lines
• Under-hood breather hoses

2. Pneumatic Control Tubing for Industrial Automation

Industrial automation OEMs and pneumatic system integrators specify this grade for pressurized air tubing in high-cycle applications. The balanced flexibility and kink resistance enable precise routing in densely packed machinery or moving assemblies. Its resistance to pneumatic oils and cleaning chemicals ensures reliable operation with minimal maintenance, especially in harsh or mobile environments. Color stability from black pigmentation supports consistent sensor and routing identification.

Industry compliance standards

• DIN 74324 (Plastic Tubes for Pneumatic Applications)
• ISO 8573 (Compressed Air Quality)
• REACH Regulation (EC) No 1907/2006—Substances of Very High Concern screening

Typical usage ratio

• 90–100% pure resin for single-layer tube extrusion (minor process masterbatch adjustments for functional identification stripes)

Downstream process integration

• Directly loaded to inline tube extruders with tightly controlled moisture content
• Precision laser cutting and coiling for assembly automation
• End-flaring or fitting attachment performed during secondary machining

Final product types

• Pneumatic control and actuation lines
• Compressed air tools feeder hoses
• Robotic cable harnesses with integrated air feeds
• Pneumatic sensor and actuator manifolds

3. Electrical and Electronic Cable Sheathing

Cable manufacturers select this material for jacketing specialized electronic, telecom, and automotive cables exposed to moisture, oils, and mechanical abrasion. The polymer’s dielectric strength and ability to maintain flexibility in low temperatures meet design needs for signal integrity and mechanical durability, especially in harnesses routed through complex equipment. Black coloration supports UV aging resistance and proper external marking for part numbers and circuit identifiers.

Industry compliance standards

• UL 1581 (Reference Standard for Electrical Wires, Cables, and Flexible Cords)
• IEC 60811-1 (Common Test Methods for Insulating and Sheathing Materials)
• RoHS Directive 2011/65/EU (Restriction of Hazardous Substances)

Typical usage ratio

• 70–95% resin for cable sheath layer, modified with 5–30% flame retardant masterbatch where required by design

Downstream process integration

• Gravity feeding or forced dosing to main cable extrusion hopper
• Cable core plus jacket co-extrusion with nitrogen cooling tunnels
• Post-extrusion hot embossing for identification and inspection

Final product types

• Control signal cables for machinery
• Low-voltage wire harnesses
• Sensor or actuator connection wires
• Telecom and data cable insulation

4. Fluid Handling Components for Commercial Vehicles

Manufacturers of trucks, buses, and specialty vehicles rely on this material in robust air brake, transmission oil, and urea system lines. The combination of chemical compatibility, low weight, and high cold impact stability ensures dependable performance through repeated thermal cycling and over-the-road vibrations. OEMs apply dedicated extrusion or injection molding processes, integrating color-coded identifiers for assembly.

Industry compliance standards

• ISO 7628:2010 (Non-metallic Tubing for Air Braking Systems)
• FMVSS 106 (Federal Motor Vehicle Safety Standard for Brake Hoses)
• DIN 73378 (Plastic Tubing for Motor Vehicles)

Typical usage ratio

• 80–100% pure resin depending on pressure rating and flexibility requirements

Downstream process integration

• Continuous line extrusion followed by pressure and burst testing
• Injection molding for connectors and end-cap fittings
• Laser etching for part numbers and product traceability

Final product types

• Pneumatic air brake lines
• Transmission oil return hoses
• Urea tank filling and venting pipes (SCR systems)
• Compressor supply tubing

5. Offshore and Subsea Umbilical Products

OEMs serving the oil and gas sector deploy this Nylon 12 compound in critical components for subsea umbilicals and hydraulic control tubing. Its hydrolysis resistance, dimensional stability, and high pressure endurance under prolonged submersion provide reliability for flow control in harsh and corrosive marine conditions. Strict QA ensures resin lot traceability for life-critical subsea deployment.

Industry compliance standards

• API 17E (Specification for Subsea Umbilicals)
• DNVGL-ST-F119 (Umbilicals for Subsea Production Systems)
• NORSOK M710 (Qualification of Non-metallic Sealing Materials and Manufacturers)

Typical usage ratio

• 98–100% unmodified resin for mono- and multi-bore tube extrusion; blends only for special pressure or flexibility adjustments upon project requirement

Downstream process integration

• Material transfer under dry, controlled conditions to high-pressure tube extruders
• Integration of extruded tubes into umbilical cable assemblies
• Testing for burst, tensile strength, and hydrostatic aging pre-qualification

Final product types

• Hydraulic fluid lines in subsea control umbilicals
• Chemical injection tubes
• Remote electrical control cabling sheaths in deepwater applications
• Fiber optic and signal carrier core jacketing

6. 3D Printing Filaments for Technical Prototyping

Additive manufacturing companies select this polyamide for specialty filament compounding targeted at transportation, medical, and tooling prototypes. Its stable melt flow, warping resistance, and chemical inertness at typical FDM operating ranges provide effective printability and dimensional tolerance. Careful dry blending and extrusion result in wire with reduced moisture uptake and minimized pore formation during printing, matching professional specifications for end-part consistency.

Industry compliance standards

• ISO/ASTM 52921:2013 (Standard Terminology for Additive Manufacturing)
• EN ISO 9001 quality system (for traceability and batch QC)
• REACH and RoHS compliance (for filament composition)

Typical usage ratio

• 95–100% polymer for industrial filament (allowing for up to 5% colorant or conductive additive if required by print job)

Downstream process integration

• Moisture-controlled blending and filament extrusion with laser diameter monitoring
• Distribution on CNC-wound spools with full lot labeling
• Direct end-user printing in FDM/FFF platforms requiring advanced dimensional stability

Final product types

• Automotive prototyping components
• Electrical housing and small-batch instrumentation parts
• Custom connectors and fluidic adapters
• Medical equipment jigs (non-patient-contact)