(2)
Polished windowpanes should only be handled when wearing clean cotton gloves.
(3)
The use of harmful cleaners or solvents must be avoided.
(4)
Care must be taken not to scratch the window surface with finger rings or other sharp objects.
2. Equipment and Materials
A. Waxes
(1)
Kwykwax
(2)
Simoniz - Simoniz Company, Chicago, Illinois
(3)
Franklins plexiglas wax
(4)
Duco No. 7
B. Buffing Compounds
(1)
Learock No. 888 - Lea Manufacturing Co., 16 Cherry Avenue, Waterbury 20, Connecticut
(2)
Learock No. S-30 - Lea Manufacturing Co.
(3)
No. 962 Matchless Grey -Matchless Metal Polish Co., 726 Bloomfield Avenue, Glen Ridge, New Jersey
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C. Buffing Wheels
(1)
Stitch flannel buffing wheels - 4, 6 and 8 inches in diameter, 1 and 2 inches thick for 0.25-inch arbor
(2)
Grey No. 4M-30 or Red No. B-7 - Hanson-Van Winkle - Munning Co., Matawan, New Jersey
(3)
Triple A - Goodison Manufacturing Co.
D. Cleaners and Polishes per Federal Specification P-P-560, Plastic Polish (Ref Chapter 20, Cleaners and Polishers).
E. Protective Coating and Tapes
(1)
Spraylat - SC-1058R per MIL-C-6799 (Item 3.12 Total Light Transmission may be waived)
(2)
Spraylat - SC-1072, Black
(3)
Permacel No. 76 Tape - Industrial Tape Corp., New Brunswick, N.J.
(4)
No. 221 Tape - Minnesota Mining and Manufacturing Co., St. Paul, Minnesota
(5)
Transparent Cellophane Tape - Minnesota Mining Co.
(6)
3M, Number Y-9044 Tape - Minnesota Mining Co.
(7)
Gizard Protex 20V Tape - Mask-Off Company, Monrovia, California
F. Sandpaper
(1) Carborundum Wet-and-Dry paper - 400A and 600A grit
3. Repair Outer Windowpane
A. Rework limits on outer panes should be limited to the minimum thicknesses after rework as shown of Fig. 801.
4. Cleaning, Sanding, Polishing and Waxing
A. Windowpanes with superficial or minor scratches can be restored to satisfactory condition after removal from airplane by cleaning, sanding, polishing and waxing.
(1)
Clean pane by flushing surface with plenty of clean water using bare hand to gently feel and remove any sand or abrasive material. Wash with mild soap and water using a soft cloth, sponge or chamois. Wash window with clean water and dry with clean compressed air or a clean damp chamois. If soap and water do not satisfactorily clean window, apply a cleaning agent such as Wilco Anti-Static Plastic Cleaner with soft tissue or flannel cloth. Rinse with clean water and dry with clean compressed air or a clean damp chamois.
CAUTION: THE USE OF INCORRECT CLEANING METHODS OR AGENTS MAY LEAD TO FAILURE OF WINDOW.
(2)
Cover side of window not being polished with sprayed or taped protective covering. Polish window with one of the approved polishes either by hand and suitable cloths or by using machine- driven wheel. Cloths which are acceptable for hand polishing include clean flannel or flannelette. Suitable buffing wheels for machine polishing are loosely stitched flannel or muslin.
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501 Entry and Galley Service Window Outer
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