TM 10-1670-300-20&P
TO 14D1-2-469-2
NAVAIR 13-1-42
d.
Searing and Waxing. When specified in the separate repair procedures, nylon based fabrics will be heat
seared or immersed in melted wax to prevent fraying or unraveling Proceed as follows.
CAUTION
Cotton based fabrics or cord will not be heat sealed. These fabrics burn rather than
melt. Serious material damage will result
(1)
Searing. The ends of nylon tape, webbing, and cord lengths will be prepared by heat searing This is
accomplished by pressing the raw end of the fabric against a hot metal surface until the nylon maternal has melted and
formed a seal Avoid creating sharp ends or material lumping at the end.
(2)
Waxing. The fraying or unraveling of cotton or nylon tape, webbing, and cord length can be prevented by
dipping approximately 1/2 inch of the raw fabric end into a thoroughly melted mixture of half bees wax and half paraffin
The wax temperature must be high enough to insure that the wax completely penetrates the material rather than just
coating the exterior.
e.
Re-stenciling, and re-painting. Original stenciled data or markings that become faded, illegible, or obliterated
as a result of applying repairs will be re-stenciled in the same manner, at or as near as possible to the original location. A
ball-point pen or felt tip marker that contains parachute marking ink and is labeled "FOR PARACHUTE MARKING" may
be used when stenciling is not possible Painted markings on airdrop equipment that are chipped or worn will be repainted
with the same color enamel paint Metal and wood items may be repainted with olive drab paint as required.
Table 2-2. STITCHING SPECIFICATIONS
Recommended
Component
Sewing Machine
Stitches per Inch
Thread Size
(Code Symbol)
Helmet, free-fall parachutists, type I
Edge binding
MD
7-11
E
Chin Strap
LD
7-11
E
Lowering Line
HD
6-9
3
MD
7-11
E
Sling Assembly, Equipment Attaching
HD
5-8
3
2-20
