3.13 AIR BEAM SHELTER (ABS).
3.13.1 Fabric Repair.
This task covers:
a. Repairs of small cuts under one inch in length,
b. Repairs of cuts, rips, tears and abrasions over one
pin holes, and tears using Teflon seam repair tape
inch in length using fabric
ABS Repair Kit (Item 6, Appendix B, Section II)
Isopropyl Alcohol (Item 1, Appendix D)
Wiping Rags (Item 7, Appendix D)
Duct Tape (Item 8, Appendix D)
Tacking and sealing irons operate at high temperatures. Use care to prevent injury to
personnel. Severe burns may occur if sealing and tacking irons are touched.
Heat seal repairs may produce toxic fumes. To prevent injury to personnel, use in well
Do not place tacking and sealing irons on ABS surfaces. Surfaces will melt.
Repairs are made using fabric patches or repair tape over the damaged area.
For temporary repairs, a self-adhesive patch or duct tape can be used on small cuts and pin
holes until damaged area can be repaired with a heat welded patch.
Small cuts under one inch in length, pin holes and tears can be repaired by heat welding a
patch over the damaged area. Larger or irregular tears will require sewing before heat
welding the patch over the damaged area.
ABS repair kit contains all the tools and materials required to repair the ABS.
a. Repairs of small cuts under one inch in length, pin holes and tears using Teflon seam repair tape
(Refer to Figure 3-9).
(1) Place tacking and sealing irons (1 and 2) on insulation block (3). Plug in and allow to heat up for
twenty minutes. Adjust sealing iron to maximum temperature.
Alcohol solvents are flammable and give off harmful vapors. Use solvents sparingly and only
in well ventilated area. Avoid prolonged breathing of vapors. Keep away from heat, sparks,
(2) Clean the damaged area with rag dampened with alcohol. Allow area ample time to dry so that
surface is not wet when repair tape (4) is applied.
(3) Patch size is a function of the size and shape of damaged area. Round corners of patch. Repair
tape (4) should be overlapped as required to cover damaged area. Repair tape (4) should extend
at least one inch past damaged area in all directions.
(4) Cut a piece of FEP plastic sheet to size of patch.