How to repair a windsurfing sail with x-ply or monofilm with Gorilla Tape


and hello everyone I have repaired sails
before and while the repair lasted a long time it seemed that the area was
always a bit looser than before. the tape would slide off and water would get in.
in this video I’m going to show how I went about repairing my sail and the
long-term results. the first thing to do is remove tension on the sail at the
outhaul, the downhaul, in my case I left the mast in but I recommend taking it
out just to be sure that the sail is free of any tension. it’s also important
to loosen the batten nearest a repair we may need to push in and out to get it to
slide out in this repair when I hold the sail flat there’s a slight overlap
around the tear area. prior to this repair I use temporary duct tape without
overlapping, this resulted in unwanted waves and wrinkles down below so this
time I’m hoping that the overlap helps get rid of them. before going into the
repair I try to visualize how to hold the sail down so that it remains flat
while applying the tape and preserving the natural shape of the sail. despite
the fact that tension was released, the sail shape may still wrinkle up creating
unwanted waves in the material. next we want to make sure that there are no
remaining little pieces of thread sticking out to make a cleaner area for
the tape to stick. these are really tough strings and I used heavy-duty scissors
with small teeth which made it easier the strings that were not torn we’re
left as is as they may still help the overall structure of the sail. to hold
the entire panel flat I’m going to sit on the lower part of the sail and
slightly push up with my feet on the batten, so that the bottom section is
flat as well. it looks like I’ll need to pull to the side here so that the sail
stays flat in this area. now I’m ready to apply temporary tape over the area which
will set the sail material exactly how I want it at the end of the repair when I’m happy with the way it looks, I
pre-tape the area to hold the wanted alignment in place. we don’t want any
gaps or waves around the extremities of the repair. here I pull to the side to
get this area of the sail as flat as possible before applying the tape. the
order of installation of the temporary pieces is the same as the order I’ll use
in the final repair now the sail looks tight and uniform
with no more waves or wrinkles. with the sail flipped over
I can now trim the extra strings and threads from this side from here I’m going to speed up certain
parts of the video so that you can still get the full detail of the repair before we tape, we need to clean the area.
if it’s been taped before, I use oil which is great at removing glue. then, I
wipe the excess and use a small amount of soap, and finally alcohol if you use paper towel, be sure to remove
any lint left behind the sharp edges of the sail will shred the paper now the sail is ready for its final
taping job! the tape I use is waterproof quite thick and very sticky there are
several versions of the tape so be sure to go on my web site
whose the link is in the video description below, you may also simply
google manu’s windsurfing blog. in the tips and tricks section you’ll find
links to other products I use the tape has a slight stretch which I
think can prevent it from drying out in the long run the best part is it’s
inexpensive too. the tape will have its greatest holding power when it’s
centered over the tear, I try to visualize how to cut the tape so that it
covers the most sail material as possible basically trying to have the
largest pieces on first before applying the smaller ones. I press from the center
out to avoid bubbles and get the greatest grip.
however the tape is quite tolerant to imperfections that will disappear over
time as you will see in in the final results as the tape comes quite close to the
batten pocket I cut the tape a little bit longer so
that it can reach the farthest up in there then I lift up on the white stripe and
tuck the tape under by bringing the tape up from the sides
and cutting it at an angle I get the most holding power. then, the tape
following the batten pocket will need to cover a small area and also lean against
the existing tape with the white fabric rolled up, I can
slide under and place the final piece of tape of this side now I can flip the sail over and remove
the temporary tape always working from the center out when
pushing down on a tape, it’s important to make sure that there’s good contact over
the strings that’s where water will want to make its
way in and here we are, the repair is complete.
the dark background helps to reveal any bubbles and imperfections these will
disappear as the glue settles over time look for areas that you may have missed
especially around the strings without tension, the way the sail material lines
up looks exactly how it was originally this is the long-term results after ten
sessions and a few washing cycles in the waves and a couple months of use as the
tape settled the initial overlap is now gone
we can see a gap of about 1/32 of an inch or less than half a millimeter the
tape is still clear and has good transparency there’s absolutely zero
water in around inside the tape area I set some downhaul on the sail with no
outhaul to show what the sail looks like with little tension. I’m very happy how
the repair turned out, I still carry the sail on my head every time I walk out of
the shorebreak. please let me know your thoughts about this repair I do feel
like this tape could be used across panels or batten pockets and whatnot,
quite impressive ! do visit my site manu’s wind surfing
blog, in the tips and tricks section there is tons of info about gear,
technique, and even a health section. see you in the next one, ciao !

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