H.B. Fuller FE-7258

H.B. Fuller FE-7258 is an odorless epoxy system with low viscosity, ideal for bonding the outer wrapping of reverse osmosis filters. It penetrates glass filaments quickly and effectively due to its low viscosity. This component appears light yellow and has a mild odor.

Product Type: 2K (2 component) Adhesive

Application Area: Filters

Chemical Family: Epoxy & Epoxy Derivatives

Features: Low Viscosity, Odorless

Technical Data Sheet

Enhanced TDS

Identification & Functionality

Features & Benefits

Ready-to-Use Product Features

Applications & Uses

Application Area
Application and Equipment Suggestions

Suitable two part metering and mixing equipment is available. Contact your H.B. Fuller representative for suggested application equipment to suit your specific needs.

Surface Preparation

Surfaces must be clean, dry and free from grease, oil, paint, wax and weak oxide films and other surface contaminants. Chemical etching, sanding or grit blasting often give the best results.

Proportioning and Mixing

Just prior to using, blend the two components, Part A and Part B, in the ratio above. Stir the two components together thoroughly, being certain to scrape in all material from the walls and bottom of the mixing container. Materials can be hand stirred. Mechanical mixing is preferrable, but should be carried out at slow speeds (about 300 rpm), taking as little air as possible into the adhesive batch.


Ammonia (Part B)
Component A
ValueUnitsTest Method / Conditions
Blending Ratio (by volume)100.0--
Blending Ratio (by weight)100.0--
Density (Part A)9.25lb-mass/galASTM D0792
Non- Volatiles Solids Content100.0%-
Component B
ValueUnitsTest Method / Conditions
Blending Ratio (by volume)54.0--
Blending Ratio (by weight)50.0--
Density (Part B)8.6lb-mass/galASTM D0792
Non- Volatiles Solids Content100.0%-
Technical Data
ValueUnitsTest Method / Conditions
Density9.02lb-mass/galASTM D0792
Gel Time (for 149 - 151 gram)37 - 47min-
Hardness77 - 87-Shore D

Storage & Handling

Shelf Life
365 Days (Component A), 365 Days (Component B)
Storage Conditions

Store FE7258A/B in a dry place at preferably 60-85 degrees Fahrenheit or 15-30 degrees Celsius.