... Min order:2mts Sodium Naphthalene Formaldehyde (SNF/NSF/PNS-Superplasticizer for Concrete) Basic information: 1) Chemical name:Sodium Salt of Polynaphthalene Sulfonic ... corrosion:None Application: Mainly used for formulating concrete superplasticizer, high high-strength concrete, steel concrete, prestressed concrete, large formwork concrete, slip forming concrete etc, as a water ...