NA-SUL 437 is a unique, water soluble rust preventive concentrate. It can be cut back in either cold or warm water to provide a transparent water and additive solution. NA-SUL 437 has excellent hard water tolerance and exhibits exceptional storage stability both as the concentrate and in water solution formulations. NA-SUL 437 deposits a thin film on metal parts that becomes hydrophobic upon drying, enabling parts to resist rusting for extended periods, even in the 100% humidity environment of the Humidity Cabinet (ASTM D1748) test.
The thin protective film is removed easily with alkaline cleaners.
Water solutions of NA-SUL 437 are ideal for dip application of metal parts for protection during indoor storage. Wet parts may be dipped in NA-SUL 437 solutions, replacing the need for solvent based dewatering fluids. NA-SUL 437 is also highly recommended for in-can protection for waterborne aerosols keeping the interior of metal cans rust-free.
Metal Type
Ashless
Metal Content
0%
Viscosity @ 40°C
300 cSt
Application Advantage
Rust inhibition
Application Advantage
Humidity resistance
Application Advantage
Thin film
Application Advantage
Fast drying
Application Advantage
Easy removal
Application Advantage
Sprayable
Application Advantage
Multi-metal protection
Application Advantage
Storage stability
Application Advantage
Forms clear solution
Formulation Advantage
Water soluble
Formulation Advantage
Ashless
Formulation Advantage
Waterborne
Formulation Advantage
Easy to handle
Market Application
Rust preventive
Product Group
Rust preventive