BOYSEN® Metal Etching Solution B-71

BOYSEN® Metal Etching Solution B-71

DESCRIPTION: 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.

PRINCIPAL USES: It is specially formulated as a preparation agent for painting on new galvanized and rusty metal surfaces.

THEORETICAL COVERAGE PER 4-LITERS: 25 - 30 sq.m.
*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.

CLEAN-UP SOLVENT: Water 

PACKAGING: 4 Liters

APPLICATION: By brush 

DESCRIPTION: 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.

PRINCIPAL USES: It is specially formulated as a preparation agent for painting on new galvanized and rusty metal surfaces.

THEORETICAL COVERAGE PER 4-LITERS: 25 - 30 sq.m.
*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.

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.