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Old 16-01-2017, 04:33   #16
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Re: Adhesive to reglue dinghy tube to aluminum hull

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Originally Posted by Ann T. Cate View Post
Thanks for that about the 5200 fast cure curing in a "few" hours. Way better than 7 days...Ann
Actually, Fast Cure 5200 becomes tack-free in 48 hours, cures completely in 5-7 days.
http://solutions.3m.com/wps/portal/3...4871822&rt=rud
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Old 16-01-2017, 06:05   #17
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Re: Adhesive to reglue dinghy tube to aluminum hull

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Actually, Fast Cure 5200 becomes tack-free in 48 hours, cures completely in 5-7 days.
**3M™ Marine Adhesive Sealant 5200 Fast Cure White, PN05220, 3 oz Tube, 6 per case
Funny to see even 3M's corporate site is wrong. Look further down on the link you quoted, it says tack free in 1 hour. Again, even that info is different from other sites.

West Marine says,

"Cure Time: Tack-free: 2hrs.; Complete cure: 24hrs"

Standard 5200 takes 48 hours, Fast Cure is just an hour or two to become tack free.

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Old 16-01-2017, 06:37   #18
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Re: Adhesive to reglue dinghy tube to aluminum hull

I have used 5200 fast cure with success. We left the fix overnight (in tropical conditions) and it was strong in the morning. Can be very messy though (don't ask how I know - it certainly made my dinghy less likely to be stolen).
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Old 17-01-2017, 07:10   #19
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Re: Adhesive to reglue dinghy tube to aluminum hull

Okay, thanks for the ideas. We're in Grenada and splashing today. Here's what the local dinghy guy recommended:
- clean surfaces of paint, sand aluminum and hypalon surfaces, wipe with toluene, and glue with hypalon adhesive. Dried, then added another light wire of adhesive, let it set for 5 min, then joined the surfaces together. Good adhesion.
- I added a light smear of 4200 on the surface of the joint.
- drying for 24 hours before getting wet.
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Old 17-01-2017, 12:16   #20
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Re: Adhesive to reglue dinghy tube to aluminum hull

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Okay, thanks for the ideas. We're in Grenada and splashing today. Here's what the local dinghy guy recommended:
- clean surfaces of paint, sand aluminum and hypalon surfaces, wipe with toluene, and glue with hypalon adhesive. Dried, then added another light wire of adhesive, let it set for 5 min, then joined the surfaces together. Good adhesion.
- I added a light smear of 4200 on the surface of the joint.
- drying for 24 hours before getting wet.
Yes, but the big question is which hypalon adhesive did you use? (I'm thinking it may have been the Bostik, which is generally not really practical for DIY cruisers because it tends to go off in the tin.) The method is correct, and will work with SC2000 or SC4000.

Ann
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Old 17-01-2017, 13:04   #21
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Re: Adhesive to reglue dinghy tube to aluminum hull

We have had times when an old dinghy required patching about once a week. It was already too old, but it was in daily use, and it is difficult to be without at dinghy. It pretty much means you are boat-bound, except for swimming, for the whole time the repair is curing. That is why the cure time is of interest to me. Thanks, everybody who tried to help finding out those cure times.
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Old 20-01-2017, 00:03   #22
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Re: Adhesive to reglue dinghy tube to aluminum hull

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Originally Posted by Ann T. Cate View Post
Yes, but the big question is which hypalon adhesive did you use? (I'm thinking it may have been the Bostik, which is generally not really practical for DIY cruisers because it tends to go off in the tin.) The method is correct, and will work with SC2000 or SC4000.

Ann
The bostik is a 2 part glue and I keep it onboard it lasts about 4 years in the fridge !
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Old 20-01-2017, 00:47   #23
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Re: Adhesive to reglue dinghy tube to aluminum hull

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The bostik is a 2 part glue and I keep it onboard it lasts about 4 years in the fridge !
Bostik makes dozens, if not hundreds of different adhesives! Which one did you use? Our experience, some years ago, was that the one recommended to us and sold by Downwind Marine in D Diego, had a short shelf life, even unopened. OK for factory use, not so good for yotties.

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Old 20-01-2017, 05:20   #24
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Re: Adhesive to reglue dinghy tube to aluminum hull

OK I will repeat it .. Bostik 2402
Designed to stick rubber de icing strips on propellers
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Old 20-01-2017, 06:04   #25
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Re: Adhesive to reglue dinghy tube to aluminum hull

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OK I will repeat it .. Bostik 2402
Designed to stick rubber de icing strips on propellers
Ha
Used it to install deice boots on the DC-3's we ran, it works better than horse glue!

I do have in front of me a container of 2 part Hypalon Inflatable Boat Adhesive I purchased from Achilles/Defender this past July.

Made by Polymarine Ltd.
info@polymarine

Haven't used it yet, toooo cold. so no experience with this.
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Old 20-01-2017, 06:47   #26
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Re: Adhesive to reglue dinghy tube to aluminum hull

This topic makes me wonder about RIB, fiberglass and Aluminium, dinghies with damaged tubes. How feasible is it to order new tubes from the manufacturer and repair? Is it cost effective?
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Old 20-01-2017, 08:52   #27
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Re: Adhesive to reglue dinghy tube to aluminum hull

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Originally Posted by masonc View Post
This topic makes me wonder about RIB, fiberglass and Aluminium, dinghies with damaged tubes. How feasible is it to order new tubes from the manufacturer and repair? Is it cost effective?
Zodiac Inflatable Boat Tube Sets

RIB collars and RIB tubes - Henshaw Inflatables Ltd

RIB Retubing - AI Boats
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Old 20-01-2017, 11:46   #28
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Re: Adhesive to reglue dinghy tube to aluminum hull

Bostik 2402 is a fantastic adhesive for hypalon inflatables. The polymarine is great as well. Biggest thing is store is a cool dry area, I know, almost impossible when cruising. However, as mentioned the fridge will help with
"shelf" life.
3m products can make a huge mess. They are thicker than proper application of inflatable designed adhesive. Seen many repairs in my 20 plus years fixing them, none successful long term with 5200. it does not make for a smooth transition to the still factory glued areas and a lot of times will leak around the edges.

On smaller ribs, retubing is generally not cost effective. When you start talking about 12,13, 14' models and larger it is much more commonly done.
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Old 20-01-2017, 13:28   #29
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Re: Adhesive to reglue dinghy tube to aluminum hull

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Originally Posted by masonc View Post
This topic makes me wonder about RIB, fiberglass and Aluminium, dinghies with damaged tubes. How feasible is it to order new tubes from the manufacturer and repair? Is it cost effective?
In the case of our Gemini, new hypalon tubes have run about 1/2 the cost of a whole new dinghy. As it turns out, the hypalon they use is lighter weight than that used by Swift. I don't know where Swift sources theirs, but the Gemini hypalon is from South Africa. PVC tubes are available for somewhat less that will fit our aluminum hull. This particular PVC was made in Germany, the tubes manufactured in China, and installed in Australia. It has only been a little over a year since we had this done, the dinghy has "chaps", but it is too soon to say much about its longevity. It still holds air well.

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Old 21-01-2017, 02:09   #30
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Re: Adhesive to reglue dinghy tube to aluminum hull

Best glue I have found for hypalon is SC2000.
I see it's not allowed in the EU after June 2015 and only sold for professional use so in my books that shows how good it is !
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