Boysen Metal Etching Solution #71 is an acid type metal cleaner and rust converter. It transforms rust and removes light deposits of mill oil. B-71 destroys corrosion stimulators and properly conditions metal surfaces for painting.
PRINCIPAL USES: As preparation agent for painting on new galvanized and rusty metal surfaces
PRACTICAL COVERAGE: 25-30 sq.m./gallon of mixture depending on surface rustiness
THINNING: water
APPLICATION: paint brush
PACKAGING: 3.785 liter, 946.25 ml, and 473.12 ml bottles
MIXING RATIO:
1. For treatment of new G. I. sheets: 1 part of Boysen Metal Etching Solution #71 to 9 parts water.
2. For rust treatment: use pure, limited over stubborn rust only.
PAINTING SCHEDULE:
New Galvanized Metal:
Step 1: Wipe the surface with rag soaked in paint thinner to remove dust, dirt, grease, oil, wax and other foreign matter.
Step 2: Apply 10% Boysen Metal Etching Solution #71
Step 3: Let stand for 10-15 minutes then wash off with water toremove residue. Let dry.
Rusted Metal Surface:
Step 1: Wire brush and scrape loose rust
Step2: Apply pure Boysen Metal Etching Solution #71 on rust.
Step 3: Let stand for 10-15 minutes then wash off with water toremove residue. Let dry.
Primer should be applied immediately after treatment.
Caution: Adequate protection and ventilation should be provided when working with acids.
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