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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
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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
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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.
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