Filter Media Collection Surface Enhancements from Webron Marling Ltd

Mechanical

Singe Finish

SEM Image of a typical
'Singe Finish' (100 X Magnification)

Improves abrasion resistance of media where dust impacts on needlefelt.

The singeing process removes protruding surface fibres by using a flame that melts back fibre tips which in turn consolidates the fibrous needlefelt surface. The molten polymer does not impede airflow at all but the resultant finish provides a tough abrasion resistant media surface.

Glaze

This type of finish is recommended for demanding situations in dry filtration as well as liquid filtration where large areas of fibres are welded together to form a smooth, unbroken finish on the collection surface of the felt.

SEM Image of a typical
'Glaze Finish' (100 X Magnification)

Depending on the specific end use requirements, Webron Marling offers the following types:

Light & Medium Glaze for:

Fine dust applications
Improved particle collection efficiency
Good dust release

Heavy Glaze for:

Liquid filtration applications where high efficiency and smooth release surface is required
Difficult dust situations where good filter efficiency is more important than gas flow rate

Superglaze

This revolutionary finish was developed in response to our customers' requirements for enhanced filtration properties in demanding dust situations.

Superglaze, thanks to its extra smooth surface offers superior dust release in a variety of applications.

The benefits of this finish can be listed as follows:

In many applications effective surface filtration helps ΔP to be kept low over a longer period of time in comparison to media with a conventional surface finish
Good level of air permeability, which is equivalent to that of a singed finish media, offers flexibility in a whole host of industrial applications
Cost effective
Smooth surface of Superglaze media prevents the formation of dust globules
Can be applied to needlefelts manufactured from Polyester, Polypropylene, Acrylic and PPS fibres

Mechanical Finishes - Image: Supergalze Finish

SEM Image
of WML Superglaze
(50 X Magnification)

Dust agglomeration is a common problem
with filter media whose collection surface lacks
effective mechanical finishing

Combination

Mechanical and chemical finishes can be combined to give the optimum combination for efficient dust collection and filter performance.

The choice of finish will depend on the individual filter conditions; for example where there is a fine dust with some oil content in the dust, Superglaze finish media with UCF treatment will offer optimum performance in filter.