“5200"????? I hear dynamite works............. sometimes!

Posted by Skip Turpin (skipperf33@…>)

A suggestion for those of you trying to break the bond of
3M’s “5200”.

Recently I decided to build a real bow sprit for my 1982 F33
Cat/ketch. After long and hard thought and planning the day finally
came to bite the proverbial “bullet” and start getting things out of
the way. For reasons that I will not bore you with here, it became
necessary to remove a lot of deck hardware, like the old hand crank
windlass, teak bowsprit with its anchor roller, the bow pulpit and
disconnect all lifelines running forward. On the starboard side I
needed to remove several lifeline stanchions and and their basses,
along with the aluminum toe-rail back as fare as the entry gate.

Just like every other poor slob faced with removing stuff like that,
I had prayed that they were not installed with 5200. Well, I am here
to tell ya that even the Master himself want touch that one. Yes
folks it was all installed with copious amounts of the indestructible
stuff. And yes, in most places where stainless steel screws met
aluminum, a drill was usually the only viable solution to getting
those parts loose.

Removing the toe-rail was a nightmare that took three days and four
people and a trained albino monkey. Removing the bow sprit was also
incredibly interesting. But I did happen onto one good idea there!
I would have given my grandmother for a long skinny saw blade that
would span the width of that bow sprit, but alas, I knew of none.

Then it hit me! Like the wind I jumped up on the boat and scampered
down the companionway into the main salon. There I found my guitar.
I removed its largest wire wound string the low “E” string. I then
attached a 3/4" x 5" bolt to each end of the wire for handles. Back
on the dock I slid the guitar string between the teak of the bowsprit
and the deck and began to saw. This was hard work, but it worked
like a charm. The wire wound string cut and burned its way through
the 5200 quite well.

This system will also cut through gel coat and fiberglass, so be
careful with your alignment as you cut. As you can well imagine, I
never throw my old guitar strings away anymore, they now reside on
board as make shift saw blades. They will cut or burn their way
through just about anything but steel.

Those of you trying to remove a portlight or hatch, might be able to
use this idea. I you can fish the string through, with one person on
the outside and a second on the inside of the boat you might be able
to work the saw around its perimeter. Just be carful not to cut into
the metal frame or cabin wall as you slowly work your way around.
You will find that it will take a deep angle in the direction that
you want to go to get the string to cut. Needless to say all
fasteners will have to be removed or sidestepped along the way.

Oh yes, just personal preference, but I have gotten way from using
any kind of silicone products on my boat. For most of my sealing and
bedding jobs I prefer Polysulfide products like “Life Calk”! I have
had the best luck with that kind of product over the years.

Hope this is helpful folks!

Skip Turpin

Posted by clferrer (chris.ferrer@…>)

I’ve found “AntiBond 2015” or “Marine Formula” debond 5200 with no
fuss, other than being expensive.

Chris

Posted by michel.capel (michel.capel@…>)

Good idea Skip, the guitar string saw! I just removed all six Bomar
hatches by driving three different size screwdrivers in increasing
size between the hatch and the deck. Then you hear a tearing sound
for a minute, when the caulk breaks. I also used a long knife to
break the seal. I have the same experience in removing the stanchion
bases; aluminum and SS completely rotted together.

Michel

— In freedomyachts2003@yahoogroups.com, “Skip Turpin”
<skipperf33@…> wrote:

A suggestion for those of you trying to break the bond of
3M’s “5200”.

Recently I decided to build a real bow sprit for my 1982 F33
Cat/ketch. After long and hard thought and planning the day
finally
came to bite the proverbial “bullet” and start getting things out
of
the way. For reasons that I will not bore you with here, it
became
necessary to remove a lot of deck hardware, like the old hand
crank
windlass, teak bowsprit with its anchor roller, the bow pulpit and
disconnect all lifelines running forward. On the starboard side I
needed to remove several lifeline stanchions and and their basses,
along with the aluminum toe-rail back as fare as the entry gate.

Just like every other poor slob faced with removing stuff like
that,
I had prayed that they were not installed with 5200. Well, I am
here
to tell ya that even the Master himself want touch that one. Yes
folks it was all installed with copious amounts of the
indestructible
stuff. And yes, in most places where stainless steel screws met
aluminum, a drill was usually the only viable solution to getting
those parts loose.

Removing the toe-rail was a nightmare that took three days and
four
people and a trained albino monkey. Removing the bow sprit was
also
incredibly interesting. But I did happen onto one good idea
there!
I would have given my grandmother for a long skinny saw blade that
would span the width of that bow sprit, but alas, I knew of none.

Then it hit me! Like the wind I jumped up on the boat and
scampered
down the companionway into the main salon. There I found my
guitar.
I removed its largest wire wound string the low “E” string. I
then
attached a 3/4" x 5" bolt to each end of the wire for handles.
Back
on the dock I slid the guitar string between the teak of the
bowsprit
and the deck and began to saw. This was hard work, but it worked
like a charm. The wire wound string cut and burned its way
through
the 5200 quite well.

This system will also cut through gel coat and fiberglass, so be
careful with your alignment as you cut. As you can well imagine,
I
never throw my old guitar strings away anymore, they now reside on
board as make shift saw blades. They will cut or burn their way
through just about anything but steel.

Those of you trying to remove a portlight or hatch, might be able
to
use this idea. I you can fish the string through, with one person
on
the outside and a second on the inside of the boat you might be
able
to work the saw around its perimeter. Just be carful not to cut
into
the metal frame or cabin wall as you slowly work your way around.
You will find that it will take a deep angle in the direction that
you want to go to get the string to cut. Needless to say all
fasteners will have to be removed or sidestepped along the way.

Oh yes, just personal preference, but I have gotten way from using
any kind of silicone products on my boat. For most of my sealing
and
bedding jobs I prefer Polysulfide products like “Life Calk”! I
have
had the best luck with that kind of product over the years.

Hope this is helpful folks!

Skip Turpin

Posted by Dave_Benjamin (dave_benjamin@…>)

— In freedomyachts2003@yahoogroups.com, “Skip Turpin”
<skipperf33@…> wrote:

A suggestion for those of you trying to break the bond of
3M’s “5200”.

There has been a product developed solely for this purpose. I’ll try to
find the name. It’s widely available

Posted by geraldfreshwater (freshwater@…>)

Removing the windows and hatch on our UK built F 21, I used a power tool called
a Fein
Multimaster, which is an oscillator with saw blades, sanding pads, and scrapers
(sharp or
blunt). It’s just like the thing we use for cutting off plaster of Paris casts
from broken
limbs. The small saw blades are excellent for cutting square holes for
instruments, etc, in
fibreglass. The sharp scrapers will cut through sealant, but generally stop when
you reach
the fibreglass (unless, I discovered, you push really hard!). They won’t go
through ss
fasteners. It’s a really useful tool, and you can even get a special blade for
removing
sealer/caulking from teak laid decks (if only I had teak laid decks). They are
available in
Europe (made in Germany), and I have seen them advertised in an American
woodworking
magazine, too. But, they are fairly expensive; I am a mad tool collector under
the guise of
a woodworking hobby, so I have heaps of gadgets, however this is one of the most
useful
for anyone maintaining boats. Needless to say I have no commercial connection
with any
supplier.

Regards,

Gerald Freshwater






— In freedomyachts2003@yahoogroups.com, “michel.capel” <michel.capel@…>
wrote:

Good idea Skip, the guitar string saw! I just removed all six Bomar
hatches by driving three different size screwdrivers in increasing
size between the hatch and the deck. Then you hear a tearing sound
for a minute, when the caulk breaks. I also used a long knife to
break the seal. I have the same experience in removing the stanchion
bases; aluminum and SS completely rotted together.

Michel