Reply
 
Thread Tools Display Modes
 
Old 04-18-2011, 06:27 PM   #1
Per
Guru
 
Per's Avatar
 
Join Date: Jan 2011
Posts: 613
Glueing davits to an achilles inflatable????

So i got the davit kit, the rubber receptacles which are mounted on the inflatable.

I did the prep work as per the instructions, glued them on but only to find the adhesive didnt do the job, not sure where it went wrong but now i got to clean off all the adhesive from the back of the mounts and try again.

*

really hoping someone here has a few good tips on doing this properly...
__________________
Advertisement

Per is offline   Reply With Quote
Old 04-18-2011, 06:58 PM   #2
Guru
 
jleonard's Avatar
 
Join Date: Jun 2008
Posts: 2,740
RE: Glueing davits to an achilles inflatable????

I have patched a hypalon inflatable in the past using Defender's hypalon glue. I followed the instructions which I believe called for sanding the area to be glued.

The patches lasted years and were 100% intact when I donated the boat to my son 5 years ago and are still sound.
__________________

jleonard is offline   Reply With Quote
Old 04-18-2011, 08:14 PM   #3
Guru
 
Moonstruck's Avatar
 
City: Hailing Port: Charleston, SC
Country: USA
Vessel Name: Moonstruck
Vessel Model: Sabre 42 Hardtop Express
Join Date: Nov 2008
Posts: 7,849
RE: Glueing davits to an achilles inflatable????

If it is hypalon fabric, it isa tricky process.* Everything has to be right.* I believe talulene is the solvent for tacking off and cleaning up.* Sanding, low humidity, and no direct sunlight.* I have glued on the pads for the Weaver snap davits.* They work well for light weight dinghys.
Moonstruck is offline   Reply With Quote
Old 04-19-2011, 07:03 AM   #4
TF Site Team
 
Peter B's Avatar
 
City: Brisbane
Country: Australia
Vessel Name: Lotus
Vessel Model: Clipper (CHB) 34 Sedan/Europa style
Join Date: Jun 2008
Posts: 6,669
Send a message via Skype™ to Peter B
RE: Glueing davits to an achilles inflatable????

I tried to retrofit Weaver snap davits to my Tinker Tramp, which is hypalon. The Inflatable Boat Shop guy did it first - didn't last. I tried twice more myself with the correct two pack contact cement, sanding the area - all the right things - also didn't last. I think if put on properly from new they should be ok - a lot of people around me use them, but to an older inflatable, not so easy. Maybe part of the problem is the mushroom valves on my dinghy leak slowly over time, and the collapsing of the shape right at the weight-bearing glue site seems to cause it over time to come away as a result of the shape deformation. Later type dinghys seem to have better valves that leak less. Anyway, good luck with that. They are quite a good way of mounting a ducky on the swim platform, so worth a real good try. In the end I just left the part that is meant to be glued to the dinghy attached to the snap fittings on the duckboard ('swhat we call them), and use them as a buffer to swing the dinghy up against when we retrieve via a simple block and tackle arrangement clipped to the grab rope on the far side. I just loop the near side grab ropes, which are very stoutly fitted at three places along each side, over the hook part of the duck-board fitting, then pivot the dinghy up sideways and the pad that was meant to be glued to the ducky just protects the side of the dinghy from the metal hook-like projection as it then rests against it. Sounds complicated to describe - works well in practice and dead simple in practice, and no more gluing. However, if you don't have ropes along each side, you have no choice but to make the b**** glue work...
Peter B is offline   Reply With Quote
Old 04-19-2011, 10:47 AM   #5
Per
Guru
 
Per's Avatar
 
Join Date: Jan 2011
Posts: 613
RE: Glueing davits to an achilles inflatable????

thanks guys, i did sand and then treat with some acetone but yes the sun was around.. and possible some humidity as well...
guess i get some talulene and a power sander to get the icky stuff off again and do over.

Peter i understand what you are saying, and thats not a bad idea either but i would prefer to get the buggers on the dinghy somewhat permanently...
Per is offline   Reply With Quote
Old 04-19-2011, 01:35 PM   #6
Guru
 
jleonard's Avatar
 
Join Date: Jun 2008
Posts: 2,740
RE: Glueing davits to an achilles inflatable????

I remember using acetone not toluene. Oh well, whatever I did worked.
jleonard is offline   Reply With Quote
Old 04-19-2011, 05:59 PM   #7
Guru
 
Forkliftt's Avatar
 
City: Biloxi Mississippi
Country: USA
Vessel Name: Patricia Louise II
Vessel Model: 1983 42' Present Sundeck
Join Date: Oct 2007
Posts: 2,433
RE: Glueing davits to an achilles inflatable????

Per
I have a Weaver Arc on the transom but have installed the front pad twice. The first round held a about a year before coming loose, the second time appears much better after about 2 years. The second time I designed a way to squeeze the pad onto the hypalon overnight after deflating the tube. Not easy to to.
Imagine two- 2 foot 2x4s. Now screw a 2x2 the width of the 2x4 onto the end of the boards. Now-at about 1.5' from the 2x2 you drill a 1/2" hole at the same spot on both boards. Pick up a one foot 1/2-13NC piece of all thread, 2 nuts and 2 fender washers. Install the all- thread through the holes and now you have a large "clamp". Hope this is clear. I could draw a picture and fax it if you want.
Forkliftt is offline   Reply With Quote
Old 04-20-2011, 12:55 PM   #8
Per
Guru
 
Per's Avatar
 
Join Date: Jan 2011
Posts: 613
RE: Glueing davits to an achilles inflatable????

Steve,
Thank you, that makes sense. I have some ideas how to clamp it, and i believe you are correct that it need some sort of clamping during the curing process. I used tape as per the instructions but really didnt work all that well, the tube is slightly arched but the pads are flat, so there is a tendency for the edges to come off.
thanks for your input.
Per
Per is offline   Reply With Quote
Old 04-28-2011, 03:09 AM   #9
Guru
 
koliver's Avatar
 
City: Saltspring Island
Country: BC, canada
Vessel Name: Retreat
Vessel Model: C&L 44
Join Date: Nov 2007
Posts: 2,170
RE: Glueing davits to an achilles inflatable????

I put Weavers on an Achilles, hypalon dinghy. I cleaned with Toluene, sanded lightly, used NEW GLUE. I sold the boat, kept the dinghy, so took the weavers off using a heat gun and sold the weavers. They were tough to get off after 4 or 5 years, wouldn't have come off at all without the heat gun.
the secret is to go and buy NEW GLUE from your dinghy shop. Don't buy it if the can looks like it has been on their shelf for a year, as it won't hold.
Did I mention, the most important thing is to use only NEW GLUE.
koliver is offline   Reply With Quote
Old 04-28-2011, 09:37 AM   #10
Guru
 
koliver's Avatar
 
City: Saltspring Island
Country: BC, canada
Vessel Name: Retreat
Vessel Model: C&L 44
Join Date: Nov 2007
Posts: 2,170
RE: Glueing davits to an achilles inflatable????

Did I mention the age of the glue is an important factor?

Well, if you want it to stick.......

Per:
Clamping isn't very important. You need to position the deflated tube so there is no tendency for the pad of the Weaver to try to pull off, while the glue cures. Otherwise, clamping shouldn't be necessary, just a little pressure.
If you find some NEW Glue, don't open it till you are going to use it. Throw it out when you have completed the job.
If you can't buy glue that is fresh, go to a different store.

I have tried old glue. Nothing has ever lasted for me using glue that was opened last week or earlier. It has to be fresh.

Carl:
Do you think that's enough?
koliver is offline   Reply With Quote
Old 04-29-2011, 06:23 AM   #11
Guru
 
Forkliftt's Avatar
 
City: Biloxi Mississippi
Country: USA
Vessel Name: Patricia Louise II
Vessel Model: 1983 42' Present Sundeck
Join Date: Oct 2007
Posts: 2,433
RE: Glueing davits to an achilles inflatable????

Quote:
koliver wrote:
Did I mention the age of the glue is an important factor?

Well, if you want it to stick.......

Per:
Clamping isn't very important. You need to position the deflated tube so there is no tendency for the pad of the Weaver to try to pull off, while the glue cures. Otherwise, clamping shouldn't be necessary, just a little pressure.
If you find some NEW Glue, don't open it till you are going to use it. Throw it out when you have completed the job.
If you can't buy glue that is fresh, go to a different store.

I have tried old glue. Nothing has ever lasted for me using glue that was opened last week or earlier. It has to be fresh.

Carl:
Do you think that's enough?



Good info- but in my earlier post I may have forgotten to mention that I used NEW glue on my first application. I also was installing a NEW pad . I also marked the pad area, sanded per instructions and completed the job in OUR KITCHEN to make sure the humidity was low. All supplies were ordered through Triad Marine in Kemah. And STILL it started to lift at the edges in in a few months. On the second time I used new glue again, built and used the clamp, and installed the pad outside- here in good ole Louisiana. Much better result. I recommend a clamp AND new glue!!
Forkliftt is offline   Reply With Quote
Old 04-29-2011, 08:28 AM   #12
Guru
 
Forkliftt's Avatar
 
City: Biloxi Mississippi
Country: USA
Vessel Name: Patricia Louise II
Vessel Model: 1983 42' Present Sundeck
Join Date: Oct 2007
Posts: 2,433
RE: Glueing davits to an achilles inflatable????

Quote:
Old Stone wrote:
Steve - Did you use NEW sandpaper ???????? I think Keith is trying to hoodwink us all !


CRAP!!
That's where I went wrong!!
Forkliftt is offline   Reply With Quote
Old 05-06-2011, 12:20 PM   #13
Per
Guru
 
Per's Avatar
 
Join Date: Jan 2011
Posts: 613
RE: Glueing davits to an achilles inflatable????

well, so far all i have done is tear off the half loose pads, cleaned up all the old glue from pad and tube.
now i am ready to try again..
i dont have a good place to actually do this job.. (cannot be in the sun and must have low humidity).
btw, the instructions that came with the pads indicate that you should NOT deflate the tube.
i found some strong guide lines on the web
http://www.shipstore.com/SS/HTML/INFO/INFOHYPNEO.HTML

I FIND THE BOTTOM COMMENT A LITTLE IN MY FACE...:
Believe us, we do not enjoy grinding off dried glue from a botched job. You won't either!


but i can totally agree, grinding the dried glue off is annoying work and not at all as easy as one could think.

My conclusion is to take the inflatable apart/deflate, take it home to the garage and do the job away from the water.
Per is offline   Reply With Quote
Old 06-03-2011, 07:05 PM   #14
TF Site Team
 
Peter B's Avatar
 
City: Brisbane
Country: Australia
Vessel Name: Lotus
Vessel Model: Clipper (CHB) 34 Sedan/Europa style
Join Date: Jun 2008
Posts: 6,669
Send a message via Skype™ to Peter B
RE: Glueing davits to an achilles inflatable????

And how did that go in the end Per? I have been reading about the new Ring davit, (bought 3 Brit boating mags as something to read on a long plane flight back from UK, as had run out of books, there was an article on them - gosh 7 hours one leg and 14 the next is a drag), and it seems to me these might be a good solution to the inflatable tender on the transom board issue....? If I was setting up for a tender from scratch now, I think this is the way I'd go....
http://www.cooneymarine.co.uk/pages/...ing-davit.html
Peter B is offline   Reply With Quote
Old 06-04-2011, 04:36 AM   #15
FF
Guru
 
FF's Avatar
 
Join Date: Oct 2007
Posts: 16,530
RE: Glueing davits to an achilles inflatable????

- gosh 7 hours one leg and 14 the next is a drag,

Think of doing it 3x a month for years on end!

A real butt-dragger , tho the pay is nice.
FF is offline   Reply With Quote
Old 06-06-2011, 11:42 AM   #16
Per
Guru
 
Per's Avatar
 
Join Date: Jan 2011
Posts: 613
Glueing davits to an achilles inflatable????

Quote:
Peter B wrote:
And how did that go in the end Per? I have been reading about the new Ring davit, (bought 3 Brit boating mags as something to read on a long plane flight back from UK, as had run out of books, there was an article on them - gosh 7 hours one leg and 14 the next is a drag), and it seems to me these might be a good solution to the inflatable tender on the transom board issue....? If I was setting up for a tender from scratch now, I think this is the way I'd go....
http://www.cooneymarine.co.uk/pages/...ing-davit.html
*you had to ask

i deflated the tender, took her home.

upon removing the other of the two pads, i guess the glue showed its strength and peeled some of the outer layer off from the achilles tube..

now consider taking it to a shop to get it done.

*

thanks for the link, it looks workable but for me, i'd rather prefer not to have those arches on my swimstep, to me they look dangerous (we actually use the swim step for enjoying a swim in the water).


-- Edited by Per on Monday 6th of June 2011 11:45:34 AM
Per is offline   Reply With Quote
Old 06-14-2011, 11:48 AM   #17
Per
Guru
 
Per's Avatar
 
Join Date: Jan 2011
Posts: 613
RE: Glueing davits to an achilles inflatable????

update: the pads are on.. did the job at home, went 100% by the book.
right temp, right humidity, no direct sun.
sanded and prepped using a solvent containing MEK/Toulene, two thin layers of glue with curing time in between.
used gripwise x 4 to keep the pads firmly in place while curing for 48 hrs.

since i am now also redoing the varnish on the transom and the wood floor it will be a day or two before i get her inflated to see if them pads actually stick.
hopefully i got them in the right place also.
Per is offline   Reply With Quote
Old 06-15-2011, 03:21 AM   #18
TF Site Team
 
Peter B's Avatar
 
City: Brisbane
Country: Australia
Vessel Name: Lotus
Vessel Model: Clipper (CHB) 34 Sedan/Europa style
Join Date: Jun 2008
Posts: 6,669
Send a message via Skype™ to Peter B
RE: Glueing davits to an achilles inflatable????

Well good luck with that. It sounds like you did everything right, so as they tend to stick when done by the shop from new, this oughta work. If it does not, then they never will stick properly, as you left no stone unturned, as they say, so there is always the other ring thing approach. I don't think they would interfere too much with swim step function.
Peter B is offline   Reply With Quote
Old 06-21-2011, 11:23 AM   #19
Per
Guru
 
Per's Avatar
 
Join Date: Jan 2011
Posts: 613
RE: Glueing davits to an achilles inflatable????

We put her together and inflated the tubes on Fathers day morning. Even treated the tubes with a cleaning agent so her blue coat really shone as she went back in the wet.
Her new varnished floor, transom and bench seats were glistening.
The new bottom drain plug kept her dry on the inside.
When pulling her up to our swim deck, I put the brackets into the pads, clicked in the the one davit, holding my breath and much to my amaze they fit perfectly.. i was very stoked.
Per is offline   Reply With Quote
Old 06-21-2011, 10:37 PM   #20
TF Site Team
 
FlyWright's Avatar
 
City: California Delta and SF Bay
Country: Sacramento, CA, USA (boat in Vallejo)
Vessel Name: FlyWright
Vessel Model: Marshall Californian 34 LRC
Join Date: Apr 2008
Posts: 10,180
RE: Glueing davits to an achilles inflatable????

Per, if that NEW GLUE fails you, let me know. I just found some OLD GLUE sitting around from a couple years ago that you can have for free!!! ;-)
__________________

FlyWright is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Looking for Inflatable dingy sunvale Classifieds 18 02-15-2012 05:28 PM
Horseshoe or pivot davits for inflatable? rusbet Dinghys and Smaller Boats 0 02-24-2011 06:11 PM
Achilles LSI 96 with air floor - davit suggestion? rusbet Dinghys and Smaller Boats 9 02-14-2011 07:13 AM




All times are GMT -5. The time now is 08:46 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012