TM 10-1670-287-23&P  0051 00  DIRECT SUPPORT MAINTENANCE  MC-4 RAM AIR FREE-FALL PERSONNEL PARACHUTE SYSTEM  SEARING AND WAXING  THIS TASK COVERS:  INITIAL SETUP:  Tools Personnel Required  Equipment Condition  Materials/Parts  CAUTION  NOTE SEARING  CAUTION  WAXING  END OF WORK PACKAGE  0051 00-1/(2 Blank)  x Searing  x Waxing Knife, Hot Metal (Item 24, WP 0063 00)  Pot, Melting, Electric (Item 34, WP 0063 00)  Beeswax (Item 5, WP 0076 00)  Wax, Paraffin (Item 46, WP 0076 00) 92R (10) Parachute Rigger  Unpacked  Cotton tape, webbing, or cord will not be seared.  Fabric materials such as cord, tape, and webbing that is cut for use  in the maintenance of the MC-4 parachute will normally be heat- seared or dipped in a melted wax mixture, as applicable, to prevent  the material from fraying or unraveling. However, in some instances  the preparation of the material may not be necessary and will be  specified accordingly.  The cut ends of nylon tape, webbing, and cord lengths may be prepared by heat-searing, which is  performed by pressing the raw end of the material against a hot metal surface (knife) until the nylon has  melted sufficiently. Avoid forming a sharp edge or lumped effect on the melted end. Sharp edges may cut other components  Fraying or unraveling of cotton or nylon tape, webbing, and cord length ends may be prevented by  dipping  ½ -inch of the raw end of the material into a thoroughly melted mixture of half beeswax and half  paraffin in an electric melting pot. The wax temperature should be substantial enough to ensure the wax  completely penetrates the material rather than just coating the exterior fabric. 