H.B. Fuller UR 3577

H.B. Fuller UR 3577 is a two-component polyurethane adhesive that has shown a reduced tendency for defects due to channeling or "veining". Additionally, it has demonstrated improved chemical resistance compared to other products in H.B. Fuller laboratory testing. This adhesive is specifically designed for bonding membranes in spiral-wound filter elements.

Product Type2K (2 component) Adhesive, Membrane Adhesive

Application AreaMembranes

Chemical FamilyPolyurethanes (PU)

FeaturesChemical Resistant

Technical Data Sheet

Enhanced TDS

Identification & Functionality

Chemical Family

Features & Benefits

Ready-to-Use Product Features

Applications & Uses

Application Area
  • Designed for bonding membranes in spiral wound filter elements.
  • Spiral wound membrane separation filter elements including reverse osmosis and ultra-filtration elements used for desalinization.
Suitable Substrates

Reverse osmosis and ultra-filtration membranes.

Application Instructions
  • One to one mix ratio by volume.
  • We suggest using metermix equipment equipped with an automatic purge.


Typical Properties
ValueUnitsTest Method / Conditions
Solid Content100.0%
Gel Temperature25.0°C
Gel Time60.0min
Viscosity15 000mPa·s

Storage & Handling


In original sealed packaging protected from sun, dust, moisture and high temperatures. Clean and dry conditions above +10°C and below +50°C.