High-Pressure Filtration

Udel polysulfone has long been the industry standard for making the support layers used in the production of RO and NF thin-film composite membranes. Today, leading RO/NF membrane manufacturers around the world use Udel P-3500 LCD MB in high-pressure water filtration applications.

Udel Polysulfone

• Cost-effective processing by solution casting
• Excellent mechanical properties
• Stable at pH levels from 2-13
• Outstanding hydrolytic stability
• Excellent caustic resistance
• Good resistance to moderate concentrations of chlorine
• Low levels of extractible and insoluble materials
• Global agency approvals

Low-Pressure Filtration

Solef PVDF has become an industry standard for submerged UF and MF hollow fiber membrane systems, especially in the rapidly growing membrane bioreactor (MBR) segment. PVDF offers a number of key performance attributes, including:

Solef PVDF

• Outstanding processability with a large number of grades
• Available in narrow molecular weight ranges
• Excellent impact strength and mechanical properties
• Good resistance to organic fouling
• Stable at pH levels from 1 to 11
• Excellent chlorine resistance
• Low level of insolubles
• Excellent UV resistance
• Very high purity and low level of extractibles
• Global agency approvals