4-20. Wall, Floor and Ceiling Panels.
This task covers:
Electronic Equipment Shelter Tool Kit
General Mechanics Automotive Tool Kit
Aluminum, Unpainted (Item 7 or 8, Appendix D)
Sandpaper, Grit Nos. 40,60 and 80
(ltems 26, 27 and 28, Appendix D)
Solvent (Item 37, Appendix D)
Blind Pop Rivets, Various Sizes and
Adhesive (Item 6, Appendix D)
Sealer (item 29 or 30, Appendix D)
Cheesecloth (item 9 or 10, Appendix D)
Gloves (Item 12, Appendix D)
Goggles (Item 38, Appendix D)
General Safety Instructions
Adhesives and solvents are flammable and toxic.
Keep away from heat and open flames. Avoid eye
and skin contact and breathing of vapors. Use in a
well-ventilated area. Use protective goggles and
gloves. Use in accordance with manufacturers
Repair. (figure 4-10)
Paint strippers can contaminate panel core, adhesive and sealer. Do not use paint
strippers to remove paint.
RFI/EMI shielded shelters should not be operated until a permanent patch has been
The following procedures shall be used to repair small punctures that do not exceed
1/2-inch depth into foam core. All punctures must be patched immediately to prevent
water intrusion and/or radiation leakage (shielded shelters). Dents without punctures do
not require patching. However, if bare metal is exposed, touch up with paint (para 4-6).
Wall, ceiling and floor sandwich panels are alike in composition and construction. Repair
procedures are the same for all sandwich panels.
(1) Bend edges of puncture in below surface of unbroken face sheet. Do not allow broken edges to contact
(2) Remove loose fragments of foam and dust, using a vacuum, if necessary.