SEFAR® X-Treme

New high-performance anti-scaling filter fabric for security filtration in alumina refining. Benefit from stable flow, higher yield and reduced downtime.

Typical scaling of standard Diastar filter cloth

Scaling in security filtration clogs fabrics and cuts flow, driving frequent changeouts and downtime.

Stabilize Security Filtration and Reduce Downtime

SEFAR® X-Treme is an innovative filter fabric that resists scaling, keeps flow stable, and protects output. The result is higher productivity and less disruption to your refinery operations.

Constant flow rate over time
+7% alumina produced
20% longer cloth lifetime
PFAS-free design

Download Technical Paper

pdf, 637.75 KB
SEFAR® X-Treme Technical Paper
A new fabric material with anti-scaling properties for security filtration in Alumina refining. Luc Parent & Sandrine Forsoni, Sefar; Alain Boivin & Nicholas Turgeon, Rio Tinto. Presented at ICSOBA 2025.

No Scaling After 82 Days

Lab analysis after 82 days of operation shows standard fabric (left) with 90% reduction of air permeability and SEFAR® X-Treme (right) with 0% reduction.

No Scaling After 82 Days

Lab analysis after 82 days of operation shows standard fabric (left) with 90% reduction of air permeability and SEFAR® X-Treme (right) with 0% reduction.

For Diastar Filter Equipment

With SEFAR® X-Treme, Diastar pressure leaf filters operate longer between interventions, maintaining steady throughput despite scaling pressure.

For Kelly Filter Equipment

SEFAR® X-Treme protects filtration capacity in Kelly pressure leaf filters by minimizing blinding effects that gradually restrict flow and reduce output.

Get in Touch in India

Sefar India HQ

A4/11-16, Prerana Complex Anjur Mankoli Road , Village Val District - Thane 421302 Bhiwandi

Head Office and Plant

Sefar India

Renaissance Holdings & Developers (P) Ltd, No. 50, Door No : 301, 3rd Floor, “Renaissance Landmark”17th cross, 8th main 560055 Bengalore

Sales Office - South Region

Sefar India

BS-1511, 15th Floor, Galaxy Diamond Plaza,Noida Extension 201308 Ghaziabad

Sales Office - North Region