ECONAMID® FL 6GM3010H1
PA6-based · 10% Glass Fiber + 20% Mineral · Lightweight Engine Cover Solution
The engine cover (cylinder head cover) is a critical protective component on top of the engine, requiring long-term service under harsh conditions including high temperature, oil mist, and vibration. It demands excellent heat resistance, dimensional stability, chemical resistance, and mechanical strength. ECONAMID® FL 6GM3010H1 is a PA6-based 10% glass fiber + 20% mineral reinforced compound, specifically designed to address warpage and dimensional stability challenges in engine covers.
ECONAMID FL 6GM3010H1 is a 30% hybrid reinforced (10% GF + 20% MD) polyamide 6 compound, offering excellent dimensional stability, low warpage characteristics, and good heat aging resistance. Formerly known as HECONAMID FL 6GM3010H1, it is ideal for large thin-wall structural parts like engine covers.
🔧 Material Requirements for Engine Covers
Engine compartment temperatures reach 120-150°C; material must maintain mechanical properties and dimensional stability.
Long-term exposure to engine oil and coolants requires excellent chemical resistance.
Large thin-wall parts are sensitive to warpage, requiring low shrinkage and high dimensional stability.
Sufficient rigidity and impact resistance to withstand vibration and assembly stress.
Large parts require good flowability and moldability.
PA6-based materials offer significant cost advantages over metals and PPA.
✅ ECONAMID FL 6GM3010H1 Solution
10% glass fiber provides rigidity, while 20% mineral filler reduces anisotropy, significantly minimizing warpage and shrinkage differences between parallel and normal directions — ideal for flat, box-shaped engine covers requiring high flatness.
| Tensile Modulus | 6000 / 3500 MPa |
| Stress at Break | 100 / 60 MPa |
| Strain at Break | 3 / 10% |
| Flexural Modulus | 5300 MPa |
| Charpy Notched Impact (+23°C) | 5 / 10 kJ/m² |
| Charpy Unnotched Impact (+23°C) | 30 / 90 kJ/m² |
| Melting Point | 221°C |
| HDT (0.45 MPa) | 205°C |
| HDT (1.80 MPa) | 175°C |
| Vicat Softening Temp | 200°C |
🏭 Engine Cover Application Results
Compared to traditional aluminum engine covers, PA6 composite achieves 30-40% weight reduction, contributing to vehicle lightweighting and fuel economy.
Mineral filler effectively controls flatness of large engine covers, providing excellent sealing performance without post-machining.
HDT of 175°C @ 1.8MPa meets long-term thermal aging requirements in engine compartments.
PA6-based material offers lower cost than PA66 and PPA, further optimized by mineral filler.
⚙️ Recommended Processing Parameters
※ Not recommended for hot runner systems with diameter below 1mm. For large engine cover molds, optimize gate design for uniform filling.