Fixing a very soft deck on a Hobie Cat

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Joyrider TV is one of the best channels on RU-vid for catamaran sailing tutorials, maintenance, Q+As and great small cat sailing content.
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I'm new to any fibreglass repairs but having looked on RU-vid for how to do this kind of repair, I couldn't find anything so I though it was worth documenting my experience.
The repair was made using epoxy resin, polyester resin and then disguised with paint!
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Опубликовано:

13 июл 2021

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Комментарии : 123

@JoyriderTV 3 года назад

I've just painted the other side, some tuning and finishing to do then the first speed run video coming up!!!!🤩🌶🏅

@arvidbjorkstrom6554 Год назад

What paint did you use?

@ssccscot 3 года назад

Use a moisture metre to check if the foam is wet. Don't have to guess then. Can dry it out if you put a small fan blowing into the holes for a few days. I use a bent nail in a L shaped to move around in each hole to push the foam away and allow more epoxy in. Really need to get the epoxy to join up between the holes. Also need to check if the skin below the foam has come away too. Again a nail or drill bit would test that out. It's amazing how much epoxy it will take if the internal skin is sagging down too. If it is then a screw through the bottom skin in a few places will pull it back into place and hold while the epoxy sets. My H14 decks have been rock solid for 5 yrs now after the repair.

@JoyriderTV 3 года назад

Thanks for the tips, i'll pay more attention to wet foam next time. Cheers

@marc-andrec5404 2 года назад

Keep your vid on everything including maintenance and repair! You're doing great, even if you're not expert. At least you say it at the very beginning! Love your channel

@marc-andrec5404 2 года назад

And I forgot, all your vidéos are BIG value! Gotta register to your patreon

@JoyriderTV 2 года назад

Thanks 👍

@N.California Год назад

I'm happy to watch a beginner repairman with this endeavor b/c I'll be in the same position.

@JoyriderTV Год назад

Good luck. It worked pretty well.

@johnwalker8957 2 года назад

I LOVE that you try anything that might be worth a video for us fans!!!

@JoyriderTV 2 года назад

thanks!

@johnfox2300 2 года назад

Use a length of plastic tubing over the drill, shorten tubing the thickness of the top fibreglass. Tubing acts as a depth gauge.

@JoyriderTV 2 года назад

Thanks for the tip. Very helpful for the next one.

@popeyez7 3 года назад

~~ Wrap a piece of tape (blue or black) just above the tip of the drill bit ~~

@JoyriderTV 3 года назад

To stop it going in too deep - good tip - thanks!

@frankspagnuolo4785 3 года назад

How deep should you go into the hull? Hope many mm deep should you go?

@bryancotton7279 3 года назад

@frank spagnuolo only as deep as the bottom of the foam - not through the inside glass layer. I used a drill stop and did the last bit through the foam by spinning a drill bit with my fingers.

@robincdyer 3 года назад

Yay! It feels soo good to see a soft deck repair done with soo much online talk of people scrapping out hulls. Great job, looks beautiful :-)

@JoyriderTV 3 года назад

Yes! Thank you!

@RL1911 2 года назад

Joe, You are a Legend! If you make a video I'll watch it ! I just sailed for the first time ever today on a 1975 Hobie 16 I bought last fall. I owe all the success I had to watching your videos. Keep it up man!

@JoyriderTV 2 года назад

Thanks! More videos on the way!

@DialedN_07 3 года назад

Good work Joe. You can't become an expert until you actually do it. Thanks for the video.

@JoyriderTV 3 года назад

Thanks 👍 Loving the rubber gloves!

@ericknutsen1958 3 года назад

Appreciate watching your challenges and adventures; sailing and other.

@JoyriderTV 3 года назад

Thanks very much.

@kayrethmeier2143 3 года назад

Great video Joe! I'm glad to see your success!

@JoyriderTV 3 года назад

Yeah, the finished result at least looks ok!

@85LARGE 3 года назад

Tip for the poor guys with old Hobies like me here: always keep your boat in the shade, away from the sun :D

@JoyriderTV 3 года назад

If you can, you should, the sun kills everything (not organic)

@85LARGE 3 года назад

@@JoyriderTV especially Hobies before 86 (not red line).

@stephenmynott5173 3 года назад

Great video yet again Joe.

@JoyriderTV 3 года назад

Thanks

@RichieMoore 3 года назад

Keep up the videos on everything you do! Yes 👍🏻

@JoyriderTV 3 года назад

Thanks! Will do.

@crest2471 3 года назад

Great video! looks like it turned out pretty good for your first try

@JoyriderTV 3 года назад

Thank you!

@stephenmoran4163 3 года назад

Nice one Joe....I will keep it in my memory bank for future repair work. I have an old Hobie 16. There is always some repair work that needs attending to. Thanks a load!

@JoyriderTV 3 года назад

Great, i'm glad it was useful.

@pkspidermonkey 2 года назад

@@JoyriderTV Incredibly useful just coming into this situation myself

@johnschmidt5330 2 года назад

I love the fix-it videos. Only way I can get on a Hobie is to buy a project boat.

@JoyriderTV 2 года назад

There are so many boats out there that could be great again!

@davidlappen8727 Год назад

Thanks for doing this video. I just bought a used Hobie Cat 16 with this issue. I’m going to give this a try.

@JoyriderTV Год назад

Good luck!

@fernandobargueno 3 года назад

Nice video, great work. Good to see some ideas as we all need to do some repair one day.

@JoyriderTV 3 года назад

Thanks 👍

@martinsachs3837 2 года назад

For epoxy to stick well one needs: 1. solid surfaces, nothing loose, no dust 2. prep surface by sanding + cleaning 3. bone dry surface. you have none of these inside that sandwich, which is why no professional dockyard will do this. the only propper way is removing the outer skin + foam + rebuildt. yes, its a huge undertaking. yes, most times its better to get a new boat. and yes, I am a professional boat builder. btw some might consider drying out delamed spots by applying vakuum o.k. One might then infuse epoxy using vakuum infusion. unfortunately thus requires serious skills and a 100% ait thight inner skin. not what the backyard boatbuilder usually got at hand.

@JoyriderTV 2 года назад

Thanks very much for that, very helpful. That will explain why one section did eventually fail.

@samiamgreeneggsandham7587 3 года назад

Thanks for posting this. I’m selfishly glad the injection method didn’t work so I could see how you handled having to open it up and build it up from an open hole. I think I’m going to end up having to do the same.

@JoyriderTV 3 года назад

You're welcome!

@alainlamothe6934 3 года назад

perfect timing. Just got my supply this morning and starting tonight or tomorrow!

@JoyriderTV 3 года назад

Perfect! Good luck with it - one thing i'd suggest - don't leave masking tape on too long - that took a couple of hours to take off once the epoxy had set.

@alainlamothe6934 3 года назад

@@JoyriderTV I'll keep that in mind. These guys (www.thebeachcats.com/forums/viewtopic/topic/13495) suggest adding screws. I might try that. How man CC's of epoxy did you use roughly?

@alainlamothe6934 3 года назад

Here's the right link: www.thebeachcats.com/news/400/Soft-Deck-Repair/

@nickperiat9427 11 месяцев назад

Thanks!

@JoyriderTV 11 месяцев назад

Thanks, I'm glad it was helpful

@arlenmcdonald9373 3 года назад

Very good ep! I hope I never have to watch it again though 🤣

@JoyriderTV 3 года назад

Ha! Me too.

@robertosgood961 3 года назад

Always go for it!

@JoyriderTV 3 года назад

Thanks!

@feedingravens 3 года назад

Thanks for the Tornado-Clip with me!

@JoyriderTV 3 года назад

The whole video will be coming soon!

@chrislrl5736 2 года назад

Great video Joe, it will be very useful 👍… Thx a lot ! (i would be interesting to see some trampoline repairs...Thx )

@JoyriderTV 2 года назад

The tramp repairs i would send to a sail maker. Thanks

@paulhales8369 3 года назад

Nice repair, would be interesting to see some repairs to rudder dings.

@JoyriderTV 3 года назад

I'll wait until I get a bit better at them.

@85LARGE 3 года назад

I do this every spring :D my whole boat is covered with dots :D

@JoyriderTV 3 года назад

The grey pain hides everything!

@martinmalcheski939 3 года назад

Looks reasonable Joe. Nothing like expeience,,, followed by use. Time on the water will test it.

@JoyriderTV 3 года назад

Thanks again for your help. I'm quite happy with the finished look - for my first big job.

@nathanbenton2051 4 месяца назад

doing the same thing to my rig rn. rookie at best so this kinda stuff is great and really appreciated. cheers:D

@JoyriderTV 4 месяца назад

You're very welcome

@kenshores9900 3 года назад

Friends that have made these types of repairs, they have used poly urethane foam. (the stuff used for insulating homes.) Comes in rattle cans. You certainly can use epoxy. But as you are finding it is not easy to control it. It was good that you put the masking tape down. What causes that is hull is delaminating due to much moisture inside of the hull. No one can criticize you for what you are doing. Good luck. US Hobie Cat

@85LARGE 3 года назад

You need more holes for the foam. It cannot spread as easy. If you syringe the epoxy with a high enough pressure it will spread on a larger area and you wont need to drill as much holes. The only thing Joseph didnt do here, is put enough pressure on the deck with his hand to make the cracking noises stop. When cracking stops it means that the deck is completely limp (dead) and there is only empty space inside - no obstructions for the epoxy to spread.

@JoyriderTV 3 года назад

That's a great tip - thanks very much.

@kenshores9900 3 года назад

@@85LARGE I seen it done with Urethane if the same grid pattern as shown. I didn’t say I like it. I just mention it as another alternative.

@85LARGE 3 года назад

@@kenshores9900 exactly. I only put 3 holes on a cross section when i do it with epoxy. If you want to use the foam you need to make it on Swiss wees cheese like on this video.

@scottpwenger 3 года назад

Great vid. The game as old as time...lol

@JoyriderTV 3 года назад

I'm glad that someone acknowledged that one!

@feedingravens 3 года назад

What you could try next time, bend a wire 90° so that you can go inside the holes and scratch out the foam remains in the area a few mm around the hole, so that both surfaces are blank. The all-deciding criterion is wetted surface, the more, the better. About the holes in the lower layer: I am thinking about a string bound to a semi-stiff plastic disc, that you can wrap together so tightly that it fits into the hole. You stuff it in, and on the inside the disc unfolds itself again and with the string you can pull it up against the hole, closing it from the inside.

@JoyriderTV 3 года назад

Thanks for the good tips. I'll try that next time.

@samdecoussemaeker5797 Год назад

I have a big soft spot on my hobie 16… I was thinking about fixing it but maybe it’s just easier to get a good second hand set of hulls and pop them on instead. What do you think?the spot is about 30cmX30cm just in front of the frame.

@JoyriderTV Год назад

It's worth a try fixing it, or maybe getting a boat builder involved.

@TheETOWNE 3 года назад

The day I sent you speed stick vid, we broke my port side, starboard had been broke for 6 months. So I figured time to fix both. I tried the hole/inject deal you did, didn’t do it. I had to cut the top layer back like you did. Pain in the rear.

@JoyriderTV 3 года назад

Yes, i was very much hoping that the injection would do the job. End result is good though.

@TheETOWNE 3 года назад

@@JoyriderTV that’s exactly what went through my mind...lol. I even tried thinnning down a lot. One thing I seen after I cut into hull was the guy that chucked up an Allen wrench and spun under glass to get foam out. For me, it was too late.

@waytall9213 2 года назад

Thanks for the video. How did your repairs hold up five months on?

@JoyriderTV 2 года назад

That's a good question. Largely good except for the area immediately next to the piece that i had to cut out - resulted in cutting another 15cm circle out and building it up as with before.

@joealesi9610 Год назад

🚩 The epoxy resin will and may have actually contributed in the meeting of the foam‼️

@JoyriderTV Год назад

In my experience and after testing, the epoxy is good with the foam whereas polyester will melt the foam.

@Beerescuemaui 2 года назад

I may have to do this to my prindle hull

@JoyriderTV 2 года назад

Good luck. It's not as painful as it looks.

@Beerescuemaui 2 года назад

It went Really well! Your video was a slight inspiration and the hull stiffened right up. Thanks for all you do @joyridertv

@sailaway3930 3 года назад

Does it expand I need to do it you inspire me LOL

@JoyriderTV 3 года назад

🤩

@skyeleake9943 3 года назад

2 questions, any idea on how that damage happened? Tips for identification of a repair like this on an older boat (i.e. someone hid it, i suspect if it is done well enough that you can't see it then it is plenty strong... But still)

@85LARGE 3 года назад

The sun kills the foam inside. It becomes dust. That foam is the only thing that keeps these boats together. There are no ribs inside the hulls of these cats. There is an inner hull and an outer hull. The space between the two is filled with special foam making the hulls hard. Once the foam is gone - hull breaks.

@feedingravens 3 года назад

This foam is simply not made for eternity, especially not when you have point-stresses like leaning on it with the trapeze hook. Even when the surface did not break, the foam is locally crushed, and on that spot the two fiberglass layers have room to move relative to each other. And the foam in between is unelastic, the tiny movement systematically work the foam up, it rip off one hundredth mm after another, and once loose, is slowly pulverized. Well, not so tiny movements, why is it the deck that is bad? Because you constantly sit on it and crush the foam there. In other areas, where there is no such stress, the foam can last almost forever. For gliders or RC model airplanes that is usually no problem, the plane "lives" in the air and no one is constantly crawling around on it.

@bryancotton7279 3 года назад

I suspect a lot of this damage is from people stepping on the hulls. It's fine at first but over time the glass flexes, the foam crushes, and the bond is compromised.

@85LARGE 3 года назад

@@bryancotton7279 for 5 years i had the boat i never stepped on a hull. It also did not flex after a sailing season. It goes bad after staying in a yard for the winter. That untill i figured out i have to cover it from the sun.

@JoyriderTV 2 года назад

⛵️

@Nils_Hammarsten 2 года назад

Flex the hull to spread epoxi.?

@JoyriderTV 2 года назад

That could work.

@lewisalexander8362 2 года назад

Drill fewer holes and use great stuff window insulation foam in a can .But drill All the way through the old foam on that real bad situation . And you will have less work .

@JoyriderTV 2 года назад

Thanks for the tip, I'll try that.

@jakeoddmonic2956 3 года назад

My 77 h16 is soft

@JoyriderTV 3 года назад

Good luck - this procedure is scary at first but the result was very good.

@bryancotton7279 3 года назад

Here is my repair documentation (so far) on the beachcats forums: www.thebeachcats.com/forums/viewtopic/topic/18538

@JoyriderTV 3 года назад

👌

@chrisbeauchamp5563 3 года назад

So the big question is, did you get into trouble with the wife for using the kitchen scales

@joshypriora1424 3 года назад

Who’s joe

@JoyriderTV 3 года назад

That's me!

@joshypriora1424 3 года назад

@@JoyriderTV it’s a joke

@danielhc1493 3 года назад

Sorry but i have top say, that this repairmethod is not the "best". I Had the Same Problem on my hobie 14. The only "clear" way ist to Sand the top layers of Glass until the Sandwich Core is free. In the Most Case the Core is wet and only fill IT Up with epoxy won't Help long... The Core must be dry an then Laminate 3 layers of Glass (2x2 Body / 163g/m²) with epoxy and on the top gelcoat. It ist more Work but this ist the only way to be Safe that the Core is everywhere conected to the Glass and dry!!! Because if it's wet the bonding wont Last Long.

@JoyriderTV 3 года назад

Thanks, this is exactly the advice that i need.