Saint-Gobain Performance Ceramics & Refractories have been providing unique and high added value silicon carbide-based solutions for decades, including the first-to-market recrystallized silicon carbide (R-SiC) product. This outstanding ceramic forms the basis of our Crystar® filtration technology.

Crystar® FT is designed for liquid and air purity, security, and sustainability. The demands of filtration have changed dramatically over the years, as a growing global population forces industries to adopt more demanding processing capabilities to satisfy the needs of global sustainability efforts.

Saint-Gobain designs, manufactures and distributes materials and solutions which are key ingredients in the well being of each of us and the future of all. They provide comfort, performance and safety while addressing the challenges of sustainable construction, resource efficiency and climate change.

With Crystar® FT membranes and filters, Saint-Gobain is committed to improving the sustainability of sectors as diverse as water/wastewater, industrial processes & life sciences, and recreational water, with new and innovative products.

We aim to make sustainability a driving force for every liquid filtration and air purification sector. Crystar® FT technology provides microfiltration of leading efficiency, with consistent retention, excellent filtrate quality at high fluxes, and operation with low consumption of energy, water and chemicals.

Chemical Recovery

Solvent, acid or alkaline solutions recovery

Crystar® filtration technology is engineered from layers of recrystallized silicon carbide (SiC) at more than 99% purity. Consequently, the resulting microstructure features strong and pure grain boundaries and benefits from the outstanding inherent properties of silicon carbide. Crystar membranes are extremely resistant to corrosive chemicals across the full pH scale even at elevated temperatures. This represents improved versatility over any polymeric membrane as well as oxide membranes.

Numerous industries have already benefited from the improved efficiency and broad corrosion resistance of Crystar FT® microfiltration membranes for the recovery of solvents, acids, and caustic solutions. This significantly supports concerted reductions of overall OPEX cost and environmental impact by reusing chemicals. In addition to the superior corrosion resistance, Crystar FT allows for higher throughput in a more effective and efficient chemical recovery process.


Food and beverage processors, for instance, use chemical solutions to clean and sterilize processing equipment as a critical step for safe manufacturing. They are increasingly concerned with acid and caustic recovery to drive down operating costs and improve the sustainability of their activities. Crystar® FT crossflow membranes are suitable for clarifying high-temperature acid and caustic solutions to reuse them as cleaning agents.


Crystar® FT is suitable for an extensive range of chemical recovery applications, simultaneously improving process performance and robustness, as well as the filtrate quality. Contact us if you would like any more information about using our proprietary recrystallized-silicon carbide membranes in your filtration system.


Data Sheets (TDS)
Crystar Crossflow FT250 51-121-3

Crystar FT250 51-121-3 offers fine and consistent retention thanks to a 250 nm membrane and a robust carrier geometry with high filtration area.

PDF | 281.91 KB
Crystar Crossflow FT250 51-121-3
Data Sheets (TDS)
Crystar Crossflow FT250 41-61-3

Crystar FT250 41-61-3 offers fine and consistent retention thanks to a 250 nm membrane and a robust carrier geometry with high filtration area.

PDF | 286.26 KB
Crystar Crossflow FT250 41-61-3
Data Sheets (TDS)
Crystar Crossflow FT250 25-61-2

Crystar FT250 25-61-2 offers fine and consistent retention thanks to a 250 nm membrane and a robust carrier geometry with high filtration area.

PDF | 289.95 KB
Crystar Crossflow FT250 25-61-2
Data Sheets (TDS)
Crystar Crossflow FT250 25-31-3

Crystar FT250 25-31-3 offers fine and consistent retention thanks to a 250nm membrane and a carrier geometry which fits most applications.

PDF | 274.26 KB
Crystar Crossflow FT250  25-31-3