(e)
Apply a continuous wet coat to permit joint penetration by capillary
action. An application rate by spraying of 1 gallon per hour at a
coverage rate of 15 to 20 square feet per minute will produce a film
thickness of 0.0003 inch. Or these materials may be brushed. Refer
to step (8) for details of spraying equipment and procedures. The
use of pressure equipment that applies these compounds under pres-sure directly to a joint or lap will improve the penetration. A soak
period of 60 minutes is required before excess compound is removed
to ensure maximum penetration.
Volume 1
20-60-00
Page 5
OCT 01/02
CORROSION PREVENTION MANUAL
GENERAL INFORMATION
STANDARD PREVENTIVE MAINTENANCE PROCEDURES
(f)
Wipe up puddles with clean gauze or rags after the 60-minute minimum
soak time.
(g)
Give the area a good flow of air until the volatile solvents are
gone. Then remove the masks or shields from the area treated.
(h)
Do not use corrosion inhibiting compounds near oxygen system compo-nents. If you find corrosion near oxygen system components:
1) Clean away corrosion products and repair per the Structural Repair
Manual.
2) Chemical treat all bare aluminum surfaces.
3) Apply one coat BMS 10-11, type 1 green primer.
4) Apply one coat BMS 10-11, type 1 yellow primer.
5) Apply BMS 10-11, type 2 epoxy or BMS 10-60 polyurethane enamel.
(7) Methods of Application of BMS 3-23
(a) Spray Application
1) Aerosol cans can be used with plastic nozzle extensions but they
are not generally recommended due to cost and the amount of over-
spray generated.
2) The preferred application method is with standard pressure pot
equipment using an airless spray gun operated at low pressure (45
psi). Suitable spray equipment is available from the following
suppliers:
Nordson Corporation, V07036 or V2R369
The DeVilbiss Company, V17431
Binks Manufacturing Company, V07334
Graco Incorporated, V25980
3) Greater accessibility will be provided with the use of accessories
such as spray gun extension kits and swivel adapters for variable
nozzle positioning.
4) Standard air atomizing equipment (siphon or pressure pot) may be
used when access is sufficient to allow application of a wet coat.
A spray nozzle-to-surface distance of no more than 12 inches is
required for wet application. When spray is operated with a pres-sure pot, a suitable extension may be made as follows:
a) Remove and retain air cap.
b) Remove fluid tip, and solder or braze 1/8-inch annealed copper
tubing of desired length on end of tip.
