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

As a direct producer of specialty polyamides for high-performance industries, we deliver EMS-Grivory Grilamid® L 20 G Nylon 12, Conditioned, engineered for precision-critical markets. The following section details authentic, end-use downstream integration—covering standards, ratios, process, and finished goods in each sector.

1. Precision Automotive Fuel Lines and Quick Connectors

Fuel system manufacturers specify this nylon for multilayer extrusions and molded connectors exposed to aggressive fuels. Chemical resistance ensures function in contact with biodiesel, E10-E100, and high-pressure gasoline blends. The natural flexibility and low permeability support weight reduction, prevent vapor loss, and extend service intervals. Developers employ it for shaped tubes and lock-fit connectors, requiring high reproducibility and compliance in every batch.

Industry compliance standards

• SAE J2260 (Nonmetallic Fuel System Tubing)
• US EPA 40 CFR part 1060 (Permeation Evap Emissions)
• ISO 13775-2:2013 (Thermoplastic Tubing for Vehicles)
• Automaker-specific requirements (VW TL 52653, GM 2135M, Ford WSS-M4D686-A1)

Typical usage ratio

• 100% as extrusion or injection molding resin; may blend with 5-15% impact modifier for flexible lines
• Minor nucleating additives (0.1-0.3%) for improved processing, depending on tool design

Downstream process integration

• Direct feed into twin-screw extruders for multilayer tubing (inner or outer layers)
• Injection molding cells for precision connector bodies and elbows
• Online automated laser marking and ultrasonic welding of finished assemblies

Final product types

• Low-permeation automobile fuel lines
• Quick connector fittings (fuel, vapor, coolant)
• Diesel and urea (SCR) injection tubing
• Motorcycle and small engine fuel assemblies

2. Medical Device Tubing and Catheter Components

Our conditioned Nylon 12 meets the stringent mechanical and chemical requirements of single-use and reusable Class II medical devices. Processors value its biocompatibility and sterilization resilience, particularly for complex, kink-resistant tubing and minimally invasive device housings. The material shows consistent burst strength and flexibility in thin-wall, small-bore profiles demanded by original equipment manufacturers.

Industry compliance standards

• ISO 10993-5, ISO 10993-10 (Biological Evaluation)
• USP Class VI Biological Reactivity Tests
• FDA 21 CFR 177.1500 (Polyamide Resins for Food Contact)
• ISO 80369-7 (Small-Bore Connectors for Liquids and Gases in Healthcare)

Typical usage ratio

• Pure grade for extrusion/molding; sometimes 1-8% processing stabilizers for EO or steam sterilization
• May blend with radiopaque fillers (10-30%) for X-ray visibility in catheters

Downstream process integration

• Precision microbore extrusion (cleanroom environment)
• Secondary in-line surface functionalization for hydrophilicity
• Overmolding on metal mandrels for custom catheter tips

Final product types

• IV infusion tubing and connectors
• Guidewires and catheter sheaths
• Surgical suction and irrigation tubes
• Inhalation device housings

3. High-Pressure Pneumatic and Hydraulic Hose Reinforcement

OEMs utilize Grilamid® L 20 G in the core and outer jacket layers of high-pressure hoses operating in construction, robotics, and heavy transportation. Its dimensional stability under pressure cycles, superior hydrolysis resistance, and compatibility with PA12-based adhesive systems provide safe, long-life assemblies. Hose manufacturers optimize ratios according to burst pressure targets and flexibility standards.

Industry compliance standards

• DIN EN 855, DIN EN 857 (Hydraulic Hose Specifications)
• ISO 3949 (Thermoplastic Hoses—Tightness, Burst Pressure, and Flexing)
• SAE J517 (Hydraulic Hose Construction)
• REACH Annex XVII (Phthalates Content for End-Use)

Typical usage ratio

• 45-85% as monolayer or co-extruded layer, balance = reinforcement fiber (polyester, aramid) and lining compounds
• Adjusts based on working pressure (70 bar to 350 bar) and required bending radius

Downstream process integration

• Co-extrusion/lamination as flexible inner or outer protective sheath
• Inline braiding with fiber for multi-layer reinforcement
• Spool-to-length cutting and ferrule fitting integration

Final product types

• Pneumatic brake hoses for commercial vehicles
• Flexible hydraulic lines for excavators and lifts
• Pilot circuit tubing for robotic arms
• Industrial high-pressure fluid transfer lines

4. Additive Manufacturing (3D Printing) for Specialized Parts

Industrial users adopt conditioned Nylon 12 for functional prototyping and low-volume production runs in powder bed fusion and selective laser sintering (SLS) systems. Its low moisture uptake, dimensional accuracy, and mechanical isotropy allow direct manufacture of parts for aerospace and lightweight automation. Engineers leverage fast cycle times and post-processing compatibility to validate product designs rapidly.

Industry compliance standards

• ASTM F2921 (Additive Manufacturing Safety)
• AMS7102 (Polymer Additive Part Production)
• UL 94 HB Flammability (For non-critical interiors)
• EN 9100 (Aerospace Quality Management—for aerospace end use)

Typical usage ratio

• Used as 100% functional powder; adjust particle size distribution (30-70 μm median)
• No additional blending for SLS; up to 30% recycled flow for non-critical parts

Downstream process integration

• Direct feed as polyamide powder for laser sintering equipment
• Post-build work: bead blasting, dyeing, mechanical finishing
• Batch-independent part serialization and heat setting

Final product types

• Aircraft air duct spacers
• Robot end effectors and grippers
• Custom instrument enclosures for factory automation
• Lightweight functional prototypes for consumer electronics

5. Drinking Water Contact and Sanitary Fitting Components

Major plumbing OEMs select this polyamide for contact parts used in potable water applications due to its resistance to scaling, biofilm growth, and leaching. The grade passes migration tests required for health safety in municipal water supply and advanced filtration systems. Molders use it for both thin-walled and structurally loaded fittings, as well as assemblies with dynamic seal contacts.

Industry compliance standards

• NSF/ANSI 61 (Drinking Water System Components—Health Effects)
• KTW Guideline (German Water Contact Regulation)
• WRAS BS 6920 (UK Water Fittings)
• DVGW W270 (Microbial Enhancement Control)

Typical usage ratio

• Pure resin for direct water contact; up to 2% processing aid for injection thin wall
• 0-10% glass fiber for structural brackets, as required by end use load

Downstream process integration

• Injection molding into union elbows, coupling housings, check valve parts
• Thermal welding or press fitting with elastomeric seals
• Final hydrostatic and leachate testing prior to market release

Final product types

• Push-in water line fittings
• Filter head bodies and manifolds
• Under-sink tap connectors
• Cold/hot water shut-off valves