Fusion Bonded Epoxy (FBE)

Author:     Published time:2017-02-20 20:55     Reading times:291    

FBE coatings utilize a powdered thermoset epoxy which is applied under a fluidized bed or electrostatic spray system to achieve the desired film thickness.  The epoxy is produced by pre-reacting a resin and curing agent into a film which is then crushed and ground into a fine powder size with particle ranges (125μm).  Prior to applying the coating, the valve is heated to approximately 400°F to ensure liquefaction of the powdered epoxy when it contacts the hot surface of the valve.  The heated mass also drives the applied epoxy to full cure.  These systems are normally applied at thickness of (250-500μm) dry film thickness per coat and are excellent at providing corrosion protection for aqueous solutions with pH ranges between 2-10, but they would have minimal resistance to abrasive slurry conditions or elevated levels of chemical attack.

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