Primer/Adhesives Can MEL-PRIME N.E. be used on Styrofoam? No, MEL-PRIME N.E. cannot be used on Styrofoam. MEL-PRIME W/B would be recommended for this type of surface. What can be used to remove MEL-PRIME W/B that was spilled on a horizontal surface? If it’s metal or glass, bug and tar remover will work. If it’s concrete, use a pressure washer (hot water... Does galvanized sheet metal need to be primed with zinc prior to the application of MEL-PRIME and MEL-ROL or would a solvent wipe be sufficient? A zinc primer is not required before the application of any of the MEL-PRIME products over galvanized sheet metal.