This product is sold brand new. A manufacturer warranty applies only when the manufacturer provides one for this item.
Return requests must be submitted within 14 days of delivery and approved by our RMA department before the item is shipped back. Non-defective returns may be subject to a minimum 25% restocking fee and return shipping charges. Unauthorized returns are not eligible for credit or refund. Read the full return policy.
Enter your ZIP during checkout to see the estimated shipping rate before payment.
Ferrotec Corp USA general-purpose ferrofluid is designed for high-frequency and midrange drivers with 1.5-inch diameter voice coils. It helps damp impedance at resonance to lower distortion, smooth frequency response, and increase thermal power handling.
The 300 µL kit is an approximate fill quantity for the stated voice coil diameter. In general, fill the air gap to 75% before inserting a voice coil diaphragm assembly. Use it to replenish drivers previously treated with ferrofluid; with care, it can also be used to upgrade most drivers that have never contained ferrofluid.
The ferrofluid is synthetic ester-based and in most cases should not pose an adhesive incompatibility. Confirm compatibility with the driver manufacturer before use. Adding ferrofluid to a driver not intended for it will, in most cases, void the original manufacturer's warranty.
The kit includes a ferrofluid packet, absorbent paper strips for removing old ferrofluid, detailed instructions, and a material safety data sheet.