Moretec Audio Ferrofluid is a high-quality magnetic liquid used in the voice coil gap of loudspeakers to significantly enhance performance and reliability. It improves power handling, smooths frequency response, and stabilizes voice coil positioning by providing thermal conductivity, damping, and centering within the magnetic field.
We offer a variety of formulations with tailored magnetization and viscosity, suitable for tweeters, woofers, buzzers, and other speaker types. Our ferrofluids are widely used in consumer electronics, automotive audio systems, and professional sound equipment.
1. Long lifespan
2. No wear, offering excellent operational reliability
3. High performance
4. Ultimate vacuum level of 10 Pa and leakage rate of 10?12 Pa.m3/sec
5. High adaptability
6. Able to meet the requirements of various equipment, from low speed to high speed, from low pressure to high pressure, and from room temperature to high temperatures.
Temperature | MTS Ferrofluid (g/s·cm2) |
150°C | 5.03×10?? |
As speaker temperature usually remains below 150°C, lower evaporation directly extends service life.
Temperature Shift (65→80°C) | MTS Viscosity Drop |
<35% |
Minimal viscosity drop ensures consistent damping and voice coil centering performance.
Magnetic Field Strength | MTS Separation Rate |
12,500 Gauss | <0% |
No solid-liquid separation, avoiding splash, ensuring long-term stability.
Adhesive Type | MTS Reaction Rate |
CR-type DC868K | 0% |
No reaction with commonly used centering adhesives, preventing gelation or detachment issues.
Property | Value |
Appearance | Dark brown liquid |
Viscosity | 75 ~ 5000 cP |
Saturation Magnetization | 100 ~ 600 Gauss |
Specific Gravity | 0.9 ~ 1.2 g/cm3 |
Operating Temperature | 100°C (PAO) / 150°C (Fluorinated) |
Flash Point | 260°C |
Example: P-2 10
P = MTS product code
2 = 200 Gauss saturation magnetization (2 × 100)
10 = 1000 cP viscosity (10 × 100)
Application | Recommended Magnetization |
Tweeters / HF Drivers | 100–200 Gauss |
Midrange / MF Drivers | 200–300 Gauss |
Woofers / Buzzers | >300 Gauss |
Note:
Magnetic gap >9000 Gauss → choose 100G ferrofluid
Magnetic gap <9000 Gauss → choose 200G ferrofluid
High-sensitivity units → use lower viscosity ferrofluid
Normal units → higher viscosity is acceptable
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