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Pipe Patchs
important to ensure that the patch stays in place
and does not move on the packer. Wipe excess
resin off the packer sleeve (not the patch).
Figure 30 – Gathering And Folding The Patch
1/2" Increments
Figure 31 – Placement Of Doubled Over Elastic Band On
Patch
Figure 32 – Patch Properly Wet Out And Secured With
Doubled Over Elastic Bands
4. The Patch is ready to repair the pipe. Use the plastic
table covering around the patch to contain resin and
allow it to be carried to the pipe opening.
Wet Out Patch On Packer
This method is always used on the 3"-4" packers and
when using containment on the 3" packer. Prior to mixing
the resin, carefully insert the packer into the patch. Do
not stretch or deform the patch. Position the patch at the
center of the packer assembly. Confirm that the patch is
centered and encroachment zones (as marked earlier)
are visible at each end. It is important to have the patch
centered on the packer to reduce the risk of an improper
18
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4" Increments
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.com
patch. Confirm that the patch is properly placed relative to
any containment tube.
1. With the packer and patch in the middle of the table
covering, mix the resin and carefully open. Pour all
the resin mixture on the patch. Do not keep the mixed
resin in the container, it will start to heat up and may
rupture or melt the container.
Using your gloved hands, thoroughly work the resin
into the patch. See Figure 33. The patch should turn
the yellow resin color – there should be no white
areas. Enough resin is supplied to fully saturate the
patch plus some. This excess resin can be left and
allowed to dry on the plastic.
Figure 33 – Wetting Out The Patch On The Packer
2. Reconfirm that the patch is centered, encroachment
zone is visible at each end and that the patch is
properly placed relative to any containment devices.
3. Gather the excess patch together and fold over
neatly. At the front end of the patch apply a doubled
over elastic band at the front edge of the patch and
every 1/2" past that until there are 4 elastic bands in
place. Continue to place doubled over elastic bands
every 4" along the remaining length of the packer.
Place another 4 elastic band 1/2" apart at the other
end of the packer. See Figure 31. Doubling over
and proper placement of the elastic bands is
important to ensure that the patch stays in place
and does not move on the packer. Wipe excess
resin off the packer sleeve (not the patch).
4. The patch is ready to repair the pipe. Use the plastic
table covering around the patch to contain resin and
allow it to be carried to the pipe opening.
information@itm.com
999-995-411.10_REV A
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