BOYSEN®® Metal Etching Solution B‑71
BOYSEN®® Metal Etching Solution B‑71 is an acid type metal cleaner and rust converter. It transforms rust and removes light deposits of mill oil. It destroys corrosion stimulators and properly conditions metal surfaces for painting.
Technical Data
Principal Uses
It is specially formulated as a preparation agent for painting on new galvanized and rusty metal surfaces.
Theoretical Coverage
25-30 sq. m. per 4-Liters
*Depending on surface texture and porosity
Thinning
Solvent
If used as etching solution, dilute 1 part of B‑71 to 9 parts water.
If used as a rust converter, do not thin. Apply on rusted portions only.
If used as a rust converter, do not thin. Apply on rusted portions only.
Clean-up
Solvent
Water
Packaging
4-Liters
Application
By brush
APPLICATION SCHEDULE
Wipe the surface with a rag soaked in paint thinner to remove grease, oil, wax and other foreign matter. For new galvanized surfaces, you may opt to etch the surface by applying 10% BOYSEN®® Metal Etching Solution B‑71 (Dilute 1 part of B‑71 to 9 parts water). Let it stay for 10-15 minutes. Rinse with water and dry immediately.
Unpainted galvanized surfaces that have been exposed for 6 months or more need not be etched.
For recoating pre-painted galvanized surfaces in good condition, sand lightly then wipe the surface with a clean rag before applying paint. Remove all loose paint film to sound surface. Spot prime bare substrate.
For corroded galvanized surfaces, remove rust by wire brushing and use BOYSEN®® Metal Etching Solution B‑71. Let it stay for 10-15 minutes. Be sure to remove all remaining residue. Immediately prime after drying.
Unpainted galvanized surfaces that have been exposed for 6 months or more need not be etched.
For recoating pre-painted galvanized surfaces in good condition, sand lightly then wipe the surface with a clean rag before applying paint. Remove all loose paint film to sound surface. Spot prime bare substrate.
For corroded galvanized surfaces, remove rust by wire brushing and use BOYSEN®® Metal Etching Solution B‑71. Let it stay for 10-15 minutes. Be sure to remove all remaining residue. Immediately prime after drying.
For MSDS requests, please email technical@boysen.com.ph