Encapsulated pack

TM 746-10

(j) Close top flaps and seal all openings with

CAUTION

tape (fig 3-27).

(k) Mark and label the box per the instructions

When dispensing foam, protective goggles or

in paragraph 3-5.

face shield, rubber gloves, and safety clothing

shall be worn by the operator.

(3) Encapsulated pack (fig 3-23 and 3-25). See

figures 3-23 through 3-25 for weighing over 150 pounds.

(1) After the foam has fully expanded, allow for

(a) Measure the length, width, and depth of the

sufficient curing time (approximately 15 minutes). Trim

item.

excess foam from the top, if necessary, and secure the

Note

box top with nails or metal staples.

When measuring the item, measure to and

(m) Mark and label the box as specified in

from the farthest points. Determine the desired

paragraph 3-5 and figure 3-23.

thickness of the foam (see table 3-2) and

(4) Encapsulated pack opening.

To open an

fabricate the plywood base, fiberboard sheet,

encapsulated pack, a handsaw, a rip type saw with a

and protective sleeve, as specified in figure 3-

medium blade, and a pry bar with a wide flat tip will be

23.

needed.

(b) Preserve and wrap the item, as specified in

(a) With the handsaw, cut along the marked cut

chapter 5 and MIL-P-116.

line of the box shell. After cutting through the shell on

all four surfaces, continue cutting completely through

The nailing strips shall be fabricated from 2by 2-inch

the foam until the blade contacts the protective sleeve

nominal lumber. Form two frames from the nailing

all around.

strips with the outside dimensions the same as the

inside dimensions of the box in length and width. The

(b) Insert the end of the pry bar into the cut and

base shall be made of %-inch minimum plywood. Cut

pry up on all four sides of the box. If the foam does not

the skids from 3by 4-inch nominal lumber. The number

separate evenly all around, reinsert the handsaw and cut

of skids shall be determined by the width of the box.

all around the protective sleeve ensuring that the

Skids shall be no more than 24 inches apart.

perimeter of the foam is cut through.

(d) Bolt the base, bottom nailing strips, and

skids together with %-inch bolts at the skid ends and nail

place in an area that is free from dirt, oil, grease, or any

the base to the skids. Fabricate the box top from %-

other foreign matter.

inch minimum plywood.

(d) After removing the item, place the top half

(e) Fabricate support blocking from high

of the pack onto the lower half, secure with tape, and

density, scrap foam. If the foam will not support the

store in a clean, moisture-free area. Obliterate all

weight of the item, reinforce with plywood. The blocks

address markings.

shall be cut to dimensions that will allow the item to rest

in the center of the box.

(5) Reusability. Most FIP packs can be reused. In

(f) Determine cut line. To determine the cut

order to maintain the pack in a reusable condition, follow

line, refer to figure 3-23.

these procedures:

(g) Wrap the horizontal plane of the item with

(a) Exercise care when opening and removing

the protective sleeve, completely covering the cutting

the item to prevent damage to the foam or the box.

plane and allowing 3 to 4 inches on both sides. Secure

with tape.

CAUTION

(h) Wrap the entire item and protective sleeve

Do not remove tape from the fiberboard boxes.

with kraft paper with the smooth surface facing the item.

This procedure often tears the outer layer of

Secure with tape in such a manner that there is

fiberboard and shortens the life of the box. To

sufficient overlap to prevent the rising foam from

open taped boxes, cut the tape down through

seeping in against the item.

the box opening.

(i) Lower the wrapped item onto the support

blocks.

(b) After item removal, assemble the complete

(j) Assemble the fiberboard shell and upper

pack and secure with tape.

nailing strips onto the base as shown in figure 3-23.

(k) Dispense foam. The quantity of foam that is

NOT DESTROY" on one side of the box in letters a

dispensed is normally specified by the equipment

minimum of half an inch high. Obliterate obsolete

supplier but should surround the item and fill the

container.

3-38