ECR Fiber Chopped Yarn
Designed for harsh environments that go beyond simple heat resistance requirements, our ECR chopped glass fiber yarn is precision-cut from premium continuous filaments. Unlike standard E-glass fiber, the boron-free ECR formula offers unparalleled acid and alkali resistance and corrosion durability, making it an indispensable key raw material in heavy industry and automotive applications.
Product Description
These E-CR chopped strands are a top-tier substrate for manufacturing high-performance glass fiber needled mat.
Through advanced needle-punching technology, chopped fibers are mechanically intertwined layer by layer to form a high-density, pure felt free of chemical binders. The resulting ECR needle-punched felt exhibits superior acoustic damping and thermal insulation properties. This synergistic advantage has significant application value in automotive exhaust and muffler systems.
Core product features
- Boron-free formulation
- Excellent corrosion resistance
- Excellent thermal stability
- 100% non-flammable
Main applications
- High-temperature needle-punched felt
Technical Specifications
Type | ECR glass fiber |
Fiber Filament | 13µm±2 |
Fiber Length | 50mm~100mm |
Resistant Temp. | 750℃ |
Color | White |
Mostiture Content | ≤2% |
Heat Loss | ≤3% (750℃ x 4 hours) |
40 Loadable q'ty | 40Tons |
Specified specifications on request
Product Series
- High-temperature needle-punched felt
Frequently Asked Questions
1. What are the main differences between ECR glass fiber and standard E-glass glass fiber?
While standard E-glass offers good general thermal and electrical insulation, ECR fiberglass uses a special boron-free formulation. This unique chemical composition gives ECR fiber extremely high resistance to acidic and alkaline environments. For harsh industrial environments with both high temperatures and corrosive chemicals, ECR fiber is a superior choice compared to traditional materials.
2. Why is E-CR fiber strongly recommended for use in automotive exhaust mufflers?
Modern exhaust systems generate extreme temperatures and also produce highly acidic condensed exhaust gases. Standard fibers are prone to degradation, brittleness, and breakage under these corrosive conditions, leading to damage from the blown fabric by the high-pressure airflow. ECR fibers actively resist this acidic degradation, maintaining their physical toughness and acoustic damping capabilities even under high-pressure airflow, thus significantly extending the lifespan and NVH performance of the muffler assembly.
3. How are Lifengjing's ECR fibers typically processed and used in manufacturing?
ECR chopped strands and direct alkali-free rovings. These premium raw materials can be easily integrated into downstream manufacturing processes. For example, our chopped strands are mechanically interwoven using an advanced needle-punching process to create high-density, binder-free, pure needle-punched felt. These felts are then directly used in automotive and heavy industrial equipment as extremely durable acoustic and thermal barriers.
