posted 10-16-2001 12:59 PM ET (US)
This is from BW. The pictures were really low quality so I am not including them. It looks like he is working on the inner wall of a Montauk 17. Pumping Voids and Delaminations
1. Re tap void or delamination to determine size and shape. (Refer to
Figure 67 - [man tapping with mallet on side of boat!])
2. With a grease pencil mark a spot at the lower most section of the area
to be pumped. This is the hole you will be pumping the resin into. (Refer
to Figure 68)
3. Using a 1/8" drill bit drill a hole on the spot you just marked.
(Refer to Figure 69)
4. Using cabosil or dust, gently fill the hole you just drilled, do not
pack it in.(Refer to Figure 70)
5. Starting from the uppermost section of the area to be pumped lightly
tap with your hammer or finger moving down a little with each tap until the
cabosil or dust "Puffs" out of the bottom hole. This is where your top hole
will be drilled. (Refer to Figure71)
(Embedded image moved to file: pic26500.pcx) (Embedded image moved to
file: pic15724.pcx)
Figure 67 Figure 68
(Embedded image moved to file: pic26962.pcx) (Embedded image moved to
file: pic05705.pcx)
Figure 69 Figure 70
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Figure 71
Pumping Voids and Delaminations Continued
6. Drill the top hole with your 1/8" bit this is the hole that will allow
air to escape or vent out while you are pumping. Fill both holes with
cabosil or dust and again with your finger tap lightly in the center, make
sure both holes "Puff" the cabosil out this is to verify that the holes are
connected by the void or delamination. (This is a very important step, if
both holes are not connected and air cannot vent out it will build up
pressure while pumping and further separate the glass from the foam or the
wood). (Refer to Figure 72 and Figure 73)
7. Tape off under both of your holes forming a cup shape with your tape.
This is to catch any resin that will flow from the holes and will save
cleanup time. (Refer to Figure74)
8. Mix your resin for pumping (Refer to Mixing Reference Chart). Use
cold resin only unless your team leader or supervisor directs you to use
hot resin).
(Embedded image moved to file: pic23281.pcx) (Embedded image moved to
file: pic09961.pcx)
Figure 72 Figure 73
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Figure 74
Pumping Voids and Delaminations Continued
9. Remove the plastic tip from your pump gun and fill it through this
hole by pouring the resin from the cup. When the gun is full screw on the
tip. (Refer to Figure 75)
10. Begin pumping from the bottom hole squeezing the trigger slowly until
the resin starts to come out of the top hole. If the gun runs out of resin
before it reaches the top hole remove the gun from the hole and refill with
resin. When removing the gun to refill it do so quickly and plug the hole
with a rivet or piece of wood so that resin already in the void or
delamination does not flow out.
(Refer to Figure 76)
11. If resin is coming out of top-hole plug it with a rivet then remove
the pump gun and plug the bottom hole with a rivet. After the resin has
cured remove the rivets and patch the holes you drilled. (Refer to Figure77
)