OEM membranes

GVS provides OEM roll goods for filtration, life sciences, and environmental monitoring industries. All of our membranes are manufactured at our facilities in North America and Italy allowing for easy and cost-effective customization. Because we manufacture more types of membranes than any other company, we are able to partner with you for all of your OEM Membrane needs.

We manufacture Polyethersulfone (PES), Polycarbonate Track Etched (PCTE), Polyester Track Etched (PETE), Polyvinylidene Difluoride (PVDF), Nylon (NY), Nitrocellulose (NC), Cellulose Acetate (CA) and Rigenerated Cellulose (RC) membranes, and we are recognized for our quality and responsiveness to customers.

GVS operates in a 27,500 m² state of the art manufacturing facility in Sanford, ME and a 6,000 m² membrane casting facility in Westborough, MA and 6,000 m² membrane casting facilities in Bologna, Italy.

  • The Massachusetts and Maine facilities include eight membrane casting lines.
  • The Maine facility includes nearly 6.000 m² of clean room for manufacturing space and 1.200 m² of R&D laboratories.
  • The Bologna facility includes PVDF casting line, surface treating line, conversion capabilities, clean room and R&D laboratories.
  • Membrane conversion capabilities, including both razor slitters and rotary shears, provides a broad range of standard and custom roll stock slit widths, from 0.64 cm (¼ inch) to master rolls up to 79 cm (31 inches); our expertise and quality control ensure strict adherence to the tight tolerances and performance specifications required for your applications.
  • Manufacturing and production facilities are registered to the ISO 9001:2008 standard.
  • Manufacturing clean rooms are rated to class 100,000.
  • Products are manufactured under a Quality Management System that ensures lot-to-lot consistency, traceability and full accountability.
  • Each roll stock order comes with a Certificate of Analysis showing the bubble point, flow rate and other specifications, as well as the actual data from that lot of material.
  • Products are tested by outside laboratories to meet FDA regulations and other requirements.
  • Most membranes have been tested for biocompatibility, toxicity, extractables and bacterial retention.


GVS Membrane Application Guide

Polymeric Hydrophilic Membrane

Membrane Type Characteristics Applications Industries
CA Hydrophilic, low non-specific
binding, low adsorption, thermally stable,
uniform pore structure		 Protein or enzyme filtration, protein
recovery, tissue culture media filtration,
wine filtration, prefilltration of plasma
fractions and vaccines		 Laboratory-Filtration;
Environmental-Beverage and
Water Testing
PES Hydrophilic, low protein binding, high
throughput, asymmetric structure		 Coarse particulate filtration (large pore),
final filtration (small pore), biological
sample prep, IV filters		 Environmental-Beverage
Testing; Laboratory-Filtration,
Medical Infusion
PES
Positively Charged		 Hydrophtilic, low protein binding,
high throughput		 IV filters, oncology drug administration,
long term administraion		 Medial Infusion
Air Flow Stop PES Hydrophilic air flow stop membrane IV drip chambers Medial Infusion
NY Hydrophilic, internally supported, high
surface area, high potein binding, low
extractables, supported for strength for
automated equipment handling		 HPLC sample prep, clarify aqueous and
organic solvents, alkaline solutions,
beverage and pharma processing		 Laboratory-Filtration, Analytical,
Bioprocessing; Pharmeceutical;
Environmental-Beverage Testing
NY Positively
Charged Filtration
Membrane		 Higher binding capacity than NC, internally
supported, can withstand multiple
reprobings, hydrophilic endotoxin retention		 Radioloabeled and non-radiolabeled
detection systems, Northern and
Southerm blots (nucleic acids),
Multiple reprobings, Alkaline
transfers, DNA fingerprinting,
UV crosslinking, IV filters		 Laboratory-Molecular Biology
and Diagnostics, Medical
Infusion
NC Hydrophilic, resistant to mild
acids, hydrocarbons, formaldehyde and
petroleum ethers, high protein binding		 Gravimetric and clarifisations with
aqueous solutions; microbial
capture and detection		 Laboratory-Filtration;
Enviromental-Beverage and
Water Testing
PVDF
Hydrophilic		 High Flow Rates, Low Extractables,
Broad Chemical Compatibility,
Very low protein binding		 TC media, pharma, ingredients, HPLC Pharma to medical

Polymeric Hydrophobic Membrane

Membrane Type Characteristics Applications Industries
PVDF
supported / pure
Filtraion Membrane		 Naturally hydrophobic, pure, high sensitibity,
low background, broad chemical
compatibility		 Protein datection via Western
blotting, amino acid analysis, protein
sequencing, GC sample prep		 Laboratory-Molecular Biology
and Diangnostics
PVDF
Oleophobic/
Emophobic		 Naturally hydrophobic,
in/post treatment super		 Air/gas venting, transducer protector,
suction-aspiration, medical device		 Medical to pharma, Industrial,
Food&beverage, Medical
venting, Automotive

Track Etched membrane Hydrophilic
Membrane Type Characteristics Applications Industries
PCTE Hydrophilic, thin, smooth, low protein
binding, non-reactive, tightly
controlled pore size and air flow		 sterile filtration, DI water filtration,
air monitoring, bacterial removal,
liposomial extraction		 Laboratory-Diagnostics, and
Bioprocessing, Electronics
Manufacturing, Industrial
Hygiene, Medical device
PCTE-AOX Hydrophilic, AOX-certified absorbable
organic haiogen-free		 Groudwater, wastewater testing for
organic halides		 Environmental-Water-Testing
PETE Hydrophilic, w/no wetting agent, smooth/flat
surface, precise pore size, wide solvent and
chemical resistance		 Trace element and aerosol
analysis, batch filtration of aggressive
solutions, cell studies, RBC removal from
piasma 		Laboratory-Diagnostics and
Bioprocessing

Track Etched membrane Hydropobic
Membrane Type Characteristics Applications Industries
PCTE-PVDF Hydrophobic, smooth surface allows for
rapid cell migration, low
extractables, lowest binding		 Chemotaxis, cell culture, blood assays,
cell growth venting applications		 Laboratory-Diagnostics
and Bioprocessing, Automotive,
Medical device