Tricot Permeate Spacer Fabric
for Reverse Osmosis Membranes
Precision-knitted polyester fabric for stable permeate flow and membrane support
Gepco Inc.
What It Is
Our Tricot Permeate Spacer Fabric is a precision-knitted polyester fabric designed for use inside spiral-wound
reverse osmosis (RO) membrane elements. Positioned between membrane layers, it helps keep the permeate
channel open under operating pressure.
What It Does
- Maintains a consistent permeate flow channel
- Supports membrane layers under operating pressure
- Provides a controlled path for purified water to flow toward the central collection tube
- Helps maintain dimensional stability and uniform spacing inside the RO element
No Epoxy Bonding
The spacer fabric combines a knitted polyester structure with low-melting PET thermal bonding technology, eliminating the need for conventional epoxy bonding.
Low-Melting PET Filament (LMF)
A regular polyester core is surrounded by a low-melting polyester sheath for thermal bonding and shape retention.
Low-Melting PET Filament Technology
During heat treatment, the low-melting sheath softens and bonds neighboring filaments together, while the regular
PET core retains the basic fiber structure. Fusion occurs at approximately 180 C.
Key Advantages
- Thermal bonding without epoxy-based chemical adhesive
- Shape retention after heat fixation
Inside a Spiral-Wound RO Element
The spacer fabric maintains separation between membrane layers and allows permeate water to travel toward the central collection tube.
Available Specifications
Composition: 100% Polyester