Andrew Webron Ltd

Correct choice of fibre type and fabric finish are essential to enhance sleeve life, a variety of 'mechanical' surface finishes and/or chemical treatments are available. The chemical finishes described below can be applied to most needlefelt products and combined with a collection of surface finishes such as SUPERGLAZE to further enhance dust release properties.

SUPAWEB CR

• This fluorocarbon chemical resistant finish is particularly suited for Aramid needlefelts when used in aggressive filter conditions. CR can be applied to other synthetic fibres including other high temperature resistant fibres polyimide and polyphenylsulphide.
• CR treatment protects the fibres in the needlefelt by offering resistance to premature hydrolysis in the fibre. Hydrolysis is a chemical reaction caused by heat and water that leads to severe loss of strength in Aramid fibres. A formulation of fluorocarbons is applied to the felt and heat treated to align the molecules of the chemical to form a protective barrier of fluorine over the fibres . The treatment also imparts water, oil and dust release properties

  Meta Aramid Media Comparison Graph.

SUPAWEB UCF

• A fluorocarbon chemical treatment which imparts water, oil and dust release characteristics to the needlefelt.
• UCF is a post treatment where a fluoropolymer is fixed onto the fibres giving a permanent finish resistant to washing and abrasion. The finish is applied to most synthetic fibre needlefelt types for application to inhibit blinding from the effects of water and oily or fatty dusts.

SUPAWEB FR

• A flame retardant chemical post treatment that inhibits the combustion process and makes the fibres self extinguishing.
• This treatment is used on 'low temperature' resistant synthetic fibres such as polyester and acrylic; the finished needlefelt is used where fire damage is a problem.