Iridite treating can be controlled by length of time solution is applied to
give a yellow or a clear coating. Treatment of reworked areas may be
accomplished either by immersion or by manual coating methods.
WARNING: MATERIALS USED ARE FLAMMABLE AND TOXIC. SPONGES, CLOTH AND TOOLS IN
CONTACT WITH IRIDITE SOLUTION SHOULD NOT BE ALLOWED TO DRY WITHOUT
THOROUGHLY RINSING IN WATER BEFORE DISCARDING.
IRIDITE POWDER CONTACTING ORGANIC COMPOUNDS MAY CAUSE COMBUSTION.
IF IRIDITE SOLUTION IS SPLASHED INTO EYES OR SKIN, FLUSH IMMEDIATELY
WITH A CONSIDERABLE AMOUNT OF CLEAN WATER. IF SOLUTION IS SPILLED ON
CLOTHING, IMMEDIATELY REMOVE CONTAMINATED CLOTHING AND WASH CLOTHING
AND BODY WITH A CONSIDERABLE AMOUNT OF CLEAN WATER.
(1)Solution Preparation
(a)
All compressed air used for solution agitation or for drying parts
shall be filtered to remove oils and solid particles.
(b)
All containers for Iridite solution shall be fabricated from or
lined with stainless steel or plastic. Some suitable plastic materi-als are polyethylene, Koroseal, Tygon, Lucoflex and Lucite.
(c)
Slowly add the Iridite powder to room temperature water by required
concentration. Agitate the solution (clean filtered air is satisfac-tory) until all soluble material is dissolved.
(d)
Prepare Iridite 14 and Iridite 14-2 solutions for immersion or man-ual applications in accordance with proportions and control shown in
Fig. 3.
(2)Iridite Surface Treatment
(a)
Wipe with dry clean cheesecloth to remove loose particles and resi-due from the treatment area.
(b)
Wipe with cheescloth dampened (not saturated) with solvent, series
88 (Ref. SOPM 20-30-88). Repeat using clean cheesecloth until no
visible residue transfers to the cheesecloth.
Volume 1
20-50-00
Page 4
OCT 01/01
CORROSION PREVENTION MANUAL
GENERAL INFORMATION STANDARD TREATMENT METHODS
(c) Allow to dry for a minimum of 15 minutes.
NOTE: The water break test may be used to determine cleanliness. In this
method a mist of distilled water is atomized on the surface to be
coated. If the water gathers and forms into droplets within 25 sec-onds the surface shall be considered as failing the test. If the
water forms a continuous film by flashing out suddenly over a large
area the surface shall also be considered as having failed the
cleanliness test because of impurities on the surface. If the water
drops coalesce into a continuous film of water without a sudden
flash and forms a lens, then the surface shall be considered as
having satisfactorily passed the water break test.
(d)
Mask off dissimilar metal inserts, except chromium, nickel, corro-sion resistant steel, or titanium.
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