You are literally the only boat dude on KZfaq that doesnt have people in your comments telling you that you're doing it wrong. Respect.
@user-ju4lk5wu1r Жыл бұрын
Thanks a mill, something I was always wondering you demonstrated well. Thank you
@dannyboy98175 жыл бұрын
Great video Andy as usual. For the record, Cabosil is just a trade name for fumed silica. I've just bought some from West System........ which they label as simply "406". I made the mistake of opening the tub in my garage with the door open and it was like setting a smoke bomb off. Had a sore throat and nose for the rest of the day 😬.
@todddunn9455 жыл бұрын
Andy, my experience with glassing knees/bulkheads to the hull is to put in a layer of 1/2" foam core between the knee/bulkhead and the hull. We cut the foam into isosceles trapezoid which created ramps that eliminated the need for fillets at the knee/bulkhead to hull transition. We generally hot glued the foam to the hull pretty much the same as you did with your knees and then attached the knees the same way you did. The idea is that the layer of foam eliminated any hard spots on the hull. Just another way of doing it (assuming you happen to have 1/2" foam core around). Good video by the way - as usual.
@boatworkstoday5 жыл бұрын
That sounds like a good approach Todd! TY ;-)!!
@br54985 жыл бұрын
In the summer I use a summer blend ploy and keep it in a cooler next to ice it real slows it down during use..
@dinsdalepiranah87595 жыл бұрын
Thanks Andy. As it happens this is exactly the info I need this week!... also, since Mas from Sail Life is taking time out this past fortnight, you are my only boat repair fix at the mo. So double thanks for being there when I need you.
@Captainpaulbtyhtr Жыл бұрын
You are a layup Jedi !
@St34mPunkPrivateer5 жыл бұрын
I downloaded your guide and I got to say even though I know what I was doing , it was a nice insurance blanket that you confirmed my theories lol. All the information you mention in it , is available online from multiple different forums and sources, buts its nice to have a quick guide in hand, I defiantly recommend it as a nice guidebook. Hi from IL, restoring a 1967 kenner privateer 26.
@mikemulrooney45745 жыл бұрын
Thank you for all of the hard work you put into your videos!I enjoy learning all of your different techniques and you do a great job of making it easy to understand!!!Thanks again
@ConfusedSoul245 жыл бұрын
Your explanation of a hardspot is generally correct however the line from the bulkhead you mention has a different origin. Polyester resin contracts while it cures. If you tab in a bulkhead, the tabbing on both sides will contract and pull the skin around the bulkhead. So it is not the bulkhead pushing out but the skin being pulled in on either side of the bulkhead. There a few ways to avoid this. 1) Use Epoxy instead of Polyester resin. Epoxy contracts while still in the gelling phase, thus the glass can move around a bit. 2) Use generous amounts of fiĺleting on both sides of the bulkhead. 3) leave a gap between skin and bulkhead. This gap can also be filled with a soft or flexible material ( e.g. flexible epoxy, caulking, selfexpanding foam) - this later solution is mostly used by large sailboat manufacturers such as Bavaria or Hanse.
@Rubbernecker4 жыл бұрын
This video helped me so much! I just bought a project boat (I have no experience in boat building) and I had a huge "aha moment" during this video! New sub!!!!
@jayybone62272 жыл бұрын
Me too Scott!
@samueltaylor49895 жыл бұрын
You could put it in place with the epoxy then squirt the hot glue on the side where they meet the boat to bond the two and pop the dollop off when cured. Then you won’t have to rush.
@LanceRyley2 жыл бұрын
if you're worried about not having enough time for the hot glue, try a 5 minute epoxy. I used it to get a piece of G10 to stick to the top of the cabin for a project. The 5 minute actually grabs after about 2 minutes, no worries.
@donazzopardi27215 жыл бұрын
You can put your jig on the inside so you can align the form against it. Second super glue gives you a little more time, once you get it where you want spray it with the hardener and it's set.
@dashan62495 жыл бұрын
Man I wish you lived and worked in Australia, my boat would be in your shop tomorrow, keep up the good work
@dinsdalepiranah87595 жыл бұрын
I can recommend a good shipwright in Pittwater if you're nearby.
@jj1gb4 жыл бұрын
A hull side hard spot and a pressure point are 2 different animals. A hull side hard spot is a stress riser created when the hull flexes everywhere except in a spot that is supported so well it won't let the hull flex. The area immediately around the support sees more stress than anywhere else causing a overload of the material. To prevent it, the support either needs to be soft allowing the flex to occur while still adding support or if it is a hard support reinforce the high stress area and taper those reinforcements off gently. For example thicken the hull around the supports and taper that thickness back to the original thickness over about 5 times the original hull thickness. So for a 1/2" hull reinforced to 1" taper from the 1/2" to the 1" over about a 2.5" distance. A pressure point created by "hammering in a support" pre-loads an area with static stresses. The dynamic forces created on the boat while in operation can either add or subtract to those static stresses. Meaning if done intentionally this can help but if not carefully planned it will create an early failure. Great channel one of my favorites. JJ
@jorgebernal37715 жыл бұрын
You’re the best on the Fiberglas on my opinion!!. Big thanks to you for the great videos👍. Keep up the good work
@mikebeasley5532 жыл бұрын
I probably would have glassed the knees before gluing them in the boat. A couple of spots of 5 minute epoxy and normal epoxy and they set up quickly for tabbing them in. That's how we do it.
@pezpengy93085 жыл бұрын
i have to admit, i wanted to watch it 11 more times.
@Skyrmir5 жыл бұрын
When you're doing an assembly line production, keep the camera rolling, then keep a 1 second 'finish' shot for each piece. Follow that up with an overall job done shot. It gives people the sense of scale of the work, and maybe shows the minor variations as you go. Plus, it looks cool.
@albertsanchez-alvarez1953 жыл бұрын
Love your stuff Andy. Thank you very much
@ericmoody39445 жыл бұрын
Hot glue gun comes in very handy when glassing bulkheads, I don't know what I would do without mine. As always, great video.
@Rainman97535 жыл бұрын
You need to protect your eyes. I don't know what the world would do without your videos and I'm pretty sure, if you lose your eyes, we lose your vids. Be safe Andy
@UnyieldingSeraph5 жыл бұрын
No, we won't lose the videos they just become a lot more more entertaining as Andy epoxies himself to a boat and the floor at the same time.
@douglaswells27395 жыл бұрын
Nice work. I'm learning a lot before I tackle my project next summer.
@mikeyadrick51545 жыл бұрын
a good subject for another video, repairing a boat with a "Hard Spot"--------Mikey
@St34mPunkPrivateer5 жыл бұрын
Would love this, as I wanted to add stringers to my boat, but am curious what it would do to the structure.
@manuelcruz-oy4xy5 жыл бұрын
You videos give to me motivation to continue finish my proyect thks hello from p.r
@jcdesignsandboat-works82905 жыл бұрын
Another well done video Andy!
@scottwatson57675 жыл бұрын
Great information as always!
@jackrabbit50475 жыл бұрын
Very instructive and fun to watch. Thank you.
@theresedignard74454 жыл бұрын
Looks great. Thanks for sharing your knowledge.
@patmcdermott85475 жыл бұрын
Luck? Maybe a little - a lot of prep and skill is more like it! Very nice work!
@splash59745 жыл бұрын
Nice layup on those tabs!
@stevegem41555 жыл бұрын
Nice job......but it seems to me you turned a one-step process into two. if you had just put thickened epoxy along the back edge of that knee ,pressed it into place, (you can always find a way to support it) and then use the squeeze out to form your fillet ..done
@robertp72095 жыл бұрын
1 minute epoxy
@danfall10035 жыл бұрын
The hotglue does indeed afford the opportunity to set, fillet, and tape the part. I do this by using fast epoxy for the glue and fillets. By the time my tapes are wetted; the fillets are at gel.
@VW.9075 жыл бұрын
I'm a super novice, but my experience has been the same. if i want a quick set I mix before then add. If i want a little more work i mix after.
@combackiddd5 жыл бұрын
Awesome Andy. Very informative and easy to follow. What seemed like an impossible task is now achievable thanks to your guidance. Can't wait to tackle my own Bertram issues. Thanks very much!
@Twelvestonestacking5 жыл бұрын
dude! excellent!! i learn so many neat "tricks"! goodonyas
@johnmdiscenza81625 жыл бұрын
Great video, as always.
@stevemccormick49385 жыл бұрын
Fumed silica is the product, cabosil is the brand, as is aerosil and others.
@gotany15 жыл бұрын
i have been using polysester resin they use for anchor bolts in walls to set blocks of wood in place where the walls or knees go and konck them off when i have matted one side.
@jamessilverman48872 жыл бұрын
Thank you so much for these excellent videos. I am just about ready to start restoring a few very old sailboats with varying amounts of damage. I have not in all of my searches come across a way to restore a Sunfish mast step that had been previously restored and has major missing sections to span and attach to the cylinder I found how to restore, but do not know how to tie in to the deck because of these large voids. Where can I find the method to make this kind of repairs. Is it possible to send you pictures?
@gsaunds1005 жыл бұрын
I’ve always thought that the way to prevent hullside hard spots then tabbing a knee or bulkhead to the hull is to leave a small gap between the bulkhead and the hull, perhaps filled by a foam strip. I’m not familiar with the properties of the flexible epoxy that you used, but it’s possible that it might provide the same result.
@jimmiller49513 жыл бұрын
I'm confused , I typically would have placed the knee with the longer end at the bottom why did you do it the way you did ?. I'm always open to learn Andy.
@Pushyhog5 жыл бұрын
Get a ryobi cordless caulk gun.
@danfall10035 жыл бұрын
Two tapes each side is a bit of overkill for a non-structural fitment. The edge would be better left unglassed because the edge will be thicker (no radius) and screw retention is high in coosa. Then you would simply overbore and fill the screw holes to make a stronger thread. I never just use the hands as I have found the consolidating roller to provide a bit of epoxy squeezeout to the substrate and always less air. I take that back; only hands when the rollerwork can be seen. For blind work, hands only. A good video overall.
@eglicomet5 жыл бұрын
Hi Andy, Dumb question: why do you not attach the knee at the top? It seems that you could get squeaks/flex when stepping on the side decks and that would be an easy way to eliminate that issue. I love your videos--this is very informative. Thank you.
@colinbolton59865 жыл бұрын
Silica is the chemical name, Cabosil is Cabot Corps trade name for their fumed silica.
@ocxb5 жыл бұрын
The only thing I would do different I would of interlaced the individual layers of materials, probably wouldn’t make a difference but ...
@pjorgerod5223 жыл бұрын
Hi Andy, I am learning a lot with your videos. Just help me please, why you say in 8:00 minute "while epoxy cure"? Does epoxy need to be cured before you install the knee? Could you not install all togther, epoxy and the glue and cure all in place? Thanks in advance, Paul
@jmconnollyus5 жыл бұрын
Love the channel. What's the old saying, "I'd rather be lucky than good"? Honestly, I don't believe luck had much to do with it. The years of experience you have are what made that flawless. Have a question though. I live in South Texas. The OVERNIGHT temperature rarely goes lower than 79F (usu. at dead-thirty in the am) and tops out between 100-105F in the afternoons from as early as May to late September some years. There have Halloweens when the high temp was in the mid-90's. To my knowledge there is not an epoxy in this world that will give more than 15 seconds of working time in those temps. I do not have a shop or shed where I can even cover the boat, which would lower the temps, but not the humidity. Did I mention the humidity? Averages 40-80% most of the time, and I'm inland. Do you have any suggestions other than waiting for the two weeks of Spring and Fall every year where it's actually habitable here to get things done? I see people working on boats down on the coast during this time of year, but have never seen them doing lay-ups -- mostly sanding & painting. Any tips from you or the collective are appreciated.
@ascott68045 жыл бұрын
Hotglue is a great idea!!
@svdellajean2535 жыл бұрын
Why cut the top of the coosa board to match the hull so well when you’re not bonding the two together?
@richardzastrow63544 жыл бұрын
That beautiful
@MrDTF5 жыл бұрын
Why not join to the deck as well?
@boatworkstoday5 жыл бұрын
I wanted to allow for some movement of the deck just incase it's needed :-)
@danfall10035 жыл бұрын
He might have to if it squeaks from lfv.
@jducharme715 жыл бұрын
Squeaking is joint is exactly what I was thinking when I saw the layup completed.
@douglasthompson27405 жыл бұрын
Hello, Kinda wondering if you gave any consideration to glassing the inside of the shoebox fitting of the deck and hull where the bolts show through? Always seems to be a source of future leaks and a generally weak spot. Almost all commercial boats are glassed at that juncture when built. To tell the truth I am surprised Bertram didn't do it. I am guessing from what you are experiencing in this build that the quality of Bertram must have declined over the years. I know in the sixties and early seventies they were the gold standard of construction. Not so much for interior design and layout but tops for construction. Good project. Take care. Doug
@bernardhacheg79432 жыл бұрын
Very good. Where do that adjective come from and how can I get some?
@demagescod96573 жыл бұрын
I watched this video for the tabbing... I am reinforcing a transom with Coosa for an outboard conversion... I cannot find any info on how big to make the tabbing... SO many questions. Any chance on you discussing how substantial tabbing needs to be for applications like that?
@markkurtis86375 жыл бұрын
I noticed that you were wearing a respirator while mixing and applying the silica thickened epoxy. Are other fillers / thickeners equally hazardous?
@Steve-wy3xq4 жыл бұрын
So helpful, when you lift over the wetted out fabric to tab in the knees you use your hands to smooth it out, did you have to brush or bubble bust it at all?
@chewyboy5 жыл бұрын
I am curious as I’ve never seen it on any boats but it does not mean it does not exist does anyone use stainless inserts that you could actually drill out the board insert it with some thickened Epoxy and then instead of having to use self tapping screws you could use more like a nut and bolt and have a metal on metal mechanical bond?
@truckerdaddy-akajohninqueb47935 жыл бұрын
21:30 I would have watched 11 more times
@raybates31195 жыл бұрын
Andy, love your videos and have learned a lot from my basic knowledge of fiberglass construction. I have a 28' Mako that has a crack in the right hand corner of the top cap where the engines mount. The transom is as solid as Gibraltar so that isn't the issue. I plan to remove the engines and repair the crack this winter. What fiberglass cloth and resin or epoxy would you use? I was thinking 1708 and epoxy but...
@jeffcantrell64404 жыл бұрын
I always mix the resin and cab. together in a 5 gallon bucket with a lid,, and grab what ever I need to fill in, and add the hardener to it then,,,is this bad?
@dannyrowan2273 жыл бұрын
Hey Andy , what vacuum is that that your using with the festool sanders ?
@larrywilliams17562 жыл бұрын
Andy what grit sandpaper should I use to print the glass 36 grit or 60 grit
@davidd8374 жыл бұрын
Andy, why not glass the knee forward facing on the bench before installing?
@davidd8374 жыл бұрын
Never mind, I need to learn to ask the questions after viewing the entire video. The fiberglass interlocked with the piece placed on the hull
@erikwilson94983 жыл бұрын
Hi Andy, I am building a Fiddle/violin for a town called Fiddletown in California and need advice on what I should be used for resins and glass. It is a charity project That needs something that will last many years. I have built the purple foam fiddle ( 18 feet) but need help in what to use to coat it. Not worried about strength as much as longevity. It will be on a roof so nobody can touch it. I have some experience with resin, ( I'm a set builder) and watched videos of painting it first but what is better? for non yellowing and longevity? epoxy or polyester?
@kwasg35 жыл бұрын
Timely vid, I just was making 1708 flat panels. QUESTION: Have you found any structural difference in which face remains exposed? I did a layup with mat side down, glass side out, times 2 layers. The mat side smooth finish when done is good enough to paint, so thinking about making first layer mat side down, layer 2 glass side down, so that the mat side is exposed on layer 2. Thoughts? Thanks for Vid as always! Great channel...
@theotherfinnegan99555 жыл бұрын
hi Andy. how come you didn't glass it also to the gunnel.
@mattl63005 жыл бұрын
Would a heavy duty double stick tape work to hold them in place while the epoxy set up? Could a 1/4" round over bit in a router be used on the face before install, to save time by not having to sand the radius in place?
@martindalbecp.eng.74505 жыл бұрын
Hi Andy, is a core of expanded polyethylene instead of Coosa would have done the job ? Maybe you need to lay more glass, maybe twice thinker core, but I think the expanded PE would cost less. What is you thinking on this
@jordandegeus57915 жыл бұрын
How do you determine how many layers should be used to tab in knees, bulkheads or other things?
@kenpfaff54515 жыл бұрын
Hi Andy, One quick question, why no glass on the top of the support
@boatworkstoday5 жыл бұрын
I don't really think it's needed as there's glass going up both faces of the knees to help with possible abrasion and weight of the deck if there is any movement.
@VW.9075 жыл бұрын
Oh now you tell me cant go over 90 deg angles. 😋
@davidcarr44645 жыл бұрын
Good stuff Andy but why didn't you prep/round over the knee before you mounted it? I mean I just think it would have been a bit easier on the bench. Good stuff though 👍
@boatworkstoday5 жыл бұрын
Either way would work, doing it the way I did seemed to be less less messing around since I was going to need to sand the area anyway to remove any of the excess epoxy squeeze-out :-)
@jackneff1795 жыл бұрын
If you were going to re\\laminate the topside of a sail boat would you use total boat epoxy or westsystem?
@Afraidinct5 жыл бұрын
Hey andy , If I was going to build a boat from the ground up, Do you think Coosa would be good for building everything like Frames as well Hull and Interior ? If you stack them can you build load bearing Decks with ??
@towmanjbo5 жыл бұрын
Andy, I've noticed that a lot of the time when you're laying glass you use multiple layers of the same size. Every thing I've seen before said it was best to make each layer larger than the previous layer. Why do you do it that way?
@boatworkstoday5 жыл бұрын
Really depends on the situation and application. For tabbing I'll do multiple layers at the same time but for actual repairs (holes) I'll only do one layer at a time
@towmanjbo5 жыл бұрын
@@boatworkstoday Aha I see that'll help me in my project but, that's not really what i meant. What I was after was the size of each layer. Say you have a 1" square hole, first layer would be 1.5" square then 2" then 2.5" and so on
@dashan62495 жыл бұрын
LOL perfect timing
@georgel53085 жыл бұрын
Love u great job
@ulicescastillo67493 жыл бұрын
What type of material is that you use to do the knees?
@Gantzz3214 жыл бұрын
could you just take your square and place it along the deck and the sidewall?
@paulcupach99305 жыл бұрын
Good stuff!
@atcaleb5 жыл бұрын
I gotta ask, I called Jamestown and ordered gelcoat Thursday. I called with questions and told them I watched your vids and that if followed a link from your video. I ordered over the phone. Do you think you got something for that or did I unintentionally cut you out? I'm going to order 10 gallons of resin and $300 of glass from them tomorrow but again, id like to just call in my order. What do you think, do you get credit if I mention your videos when I call and don't use the online cart?
@truckerdaddy-akajohninqueb47935 жыл бұрын
20:40 The panels added appear more white than soaked in resin?
@darrylmcleman64565 жыл бұрын
The greenish colored material in the sanded area where you installed the knee is gelcoat or bare glass???
@boatworkstoday5 жыл бұрын
Bare glass :-)
@darrylmcleman64565 жыл бұрын
Thanks.Hard to tell with my TV screen as the colors are somewhat skewed. Viewing from westcoast Canada.@@boatworkstoday
@natedawgws5 жыл бұрын
This does not pertain to this specific video. But I have a boat that I use only on sundays. The rest of the time it is on a trailer in my garage. I am wanting to paint the boat. Can I use alexseal topside paint on bottom and the top?
@boatworkstoday5 жыл бұрын
Not really a good idea to use below the waterline. You *might* get away with it for a while but eventually it will blister and fail :-/ Much better off going with an epoxy based bottom paint
@natedawgws5 жыл бұрын
BoatworksToday I have gelcoat as factory finish. And want to roll and tip a paint . Is alexseal the best?
@ManSingh-hu8ux5 жыл бұрын
Hey. What is the knee made out of?
@rogerheuckeroth74565 жыл бұрын
I'm surprised that you did not roll out the glass after installing it. You rolled it out beforehand, but not after applying it. It looked like you just used your gloves, and maybe a squeegee...
@mohammedekram35212 жыл бұрын
Hey Andy is there way that I can talk to you?
@richardwelkiv83254 жыл бұрын
Soooooo ya know that Festool is over 450 bucks . Thanks for the video though .
@LasVegasVocalist5 жыл бұрын
First!
@georgel53085 жыл бұрын
First
@Spectre82825 жыл бұрын
Shapewear ads suck! 😂
@boatworkstoday5 жыл бұрын
Lol ;-)! Unfortunately I have no control over that