Shattered Metal Filter
Media
Purolator EFP is the distributor of shattered metal filter media produced by Ametek. This specialty media
is highly effective in removing gels from the polymer extrusion process.
Because of its unique shape and particle sizes, shattered metal can
provide filtration characteristics unlike any other media. Optimum spin
pack performance can be achieved through the proper selection of powder
size, alloy and bed depth. Careful consideration must also be given
to the companion filter media used to ensure that each media compliments
the metal powder and contributes to the overall performance of the spin
pack.
Metal powder selection
Shattered metal powder is most often used in polyester and nylon applications
where the shearing of gels is critical. This gel removal is made possible
by the near razor-sharp edges and high degree of tortuosity of the powder.
The powder also serves as a pack body volume reducer to limit polymer
residence time and the risk of polymer degradation.