1974 Ebbtide Restoration - SPLASHED

[bvetter]

Re: 1974 Ebbtide Restoration

Re: 1974 Ebbtide Restoration

Is that 7 Liters?



Yep, I've been reading it. Just like laying tile right

Yup, 7 litres. Keep in mind my transom was pretty wide, about 7.5 feet. And +1 on WOG's recommendation for the 3/8" notched trowel. Also, you may want to catalyze your PB weak, say 1%, to give you extra working time, assuming ambient temp isn't too low.

 

[mercurymang]

Re: 1974 Ebbtide Restoration

Re: 1974 Ebbtide Restoration

I made a trip to Lowes this morning to pick up some Tite Bond 3 along with some other stuff. After getting back, I made some last minute adjustments and then started on the process of laminating the two halves of the transom. I put three screws in it to keep it from moving while i drilled a bunch of holes for the screws. After all the holes were drilled i sanded the whole thing again to get all the chipped wood off. Then I proceed to dump almost a full bottle of Tite bond on the halves. I stuck the two halves together and starting from the center worked my way outwards. When I was done, I had glue oozing everywhere. I'm pretty sure they aren't coming apart though. Tomorrow, I'll take the screws out and drill the holes out for the PB to ooze into.

Here's some pics of today's work.

I also picked up a shop light and hung it my work area so I can work in the evenings and in the night.

I'm really enjoying it out here in the country. Here's a taste of the kind of things you see out here. Found this guy on the top of my gate that I was about to walk through. Harmless but makes my skin crawl none the less.

 

[Decker83]

Re: 1974 Ebbtide Restoration

Re: 1974 Ebbtide Restoration

Your transom work is great.. That laminating will hold for 40 more years..

As far as your pet goes, I would be looking every step I took..

Have a great Sunday..

 

[Woodonglass]

Re: 1974 Ebbtide Restoration

Re: 1974 Ebbtide Restoration

Are you using the transom clamps for install. If so make sure and do a "Dry Run" so you get use to using them first. Once the PB is mixed you only have about 25 mins before it Kicks.

 

[mercurymang]

Re: 1974 Ebbtide Restoration

Re: 1974 Ebbtide Restoration

Are you using the transom clamps for install. If so make sure and do a "Dry Run" so you get use to using them first. Once the PB is mixed you only have about 25 mins before it Kicks.

Roger that. Yes, i'll be using the clamps in some form.

 

[mercurymang]

Re: 1974 Ebbtide Restoration

Re: 1974 Ebbtide Restoration

Your transom work is great.. That laminating will hold for 40 more years..

As far as your pet goes, I would be looking every step I took..

Have a great Sunday..

Thanks Decker. Regarding the titebond. I didnt expect it to be as thin as it was. I was worried that it would set up fast on me like regular wood glue but it gave me time to work with it.

 

[mercurymang]

Re: 1974 Ebbtide Restoration

Re: 1974 Ebbtide Restoration

This afternoon, I pulled the screws out of the transom and sanded everything back down smooth. I also fit the transom in the hull and traced where are the existing holes are. I plan to pre-drill them and fill them with PB and then redrill them when the transom has been installed. I finally got my resin out of the box and took a look at what I had. I was reading the instructions and they say the resin\hardener is 1gal\oz. That converts to roughly .78 percent and they say you can modify the hardener by 50% depending on the temp. Everything I've read on here show the hardener ratio to be around 1.5 to 2.5 percent. Why do they list the ratio so low?

 

[GT1000000]

Re: 1974 Ebbtide Restoration

Re: 1974 Ebbtide Restoration

In the kind of heat I usually work in down here, I have regularly used .5-.75%...depending on the size of the batch and about how long I think I need to work with it...
The catalyst will kick the resin almost by just being near the resin, at least it seems that way sometimes...even a smaller ratio will kick it, it will just take longer and needs to be stirred in real well...
I actually had one batch that I thought would have been a dismal failure when I was installing my rub rail nailers...I accidentally only added about .1% hardener to a batch of PB...after about 2-3 hours, it was still soft...I decided to try something before resigning myself to removing it...I moved the hull out into direct sunlight, went to lunch, and about a hour later, when I returned it was hard as a rock...
I would not recommend you use such low ratios, but if the heat and UV available in your area gets as high as it does around here, well...
In reality, if you can keep your layups soft, the chemical bond between layers will be much greater than if the batch starts to kick and harden before the next layer is applied...that is of course you are prepared for such events...

 

[bvetter]

Re: 1974 Ebbtide Restoration

Re: 1974 Ebbtide Restoration

Mine says to mix at 1% at 20 degrees C for 20 minutes working time, so that's what I've been doing for all my layups and PB batches. Seems to be curing well.

 

[mercurymang]

Re: 1974 Ebbtide Restoration

Re: 1974 Ebbtide Restoration

Thanks guys. This makes me feel better knowing I can keep that ratio down. Looks like the key is making sure to mix it thoroughly.

So I've read WOG's thread on glassing Decks and stringers and I think for the most part I'm clear on everything. So I'm pretty sure when I go to install the transom and clamp it down, There is going to be a lot of oozing going on. I really don't want that to get on the hull. Should I put a coat of wax on it. Will that keep the PB from sticking to the outer hull?

I admit, I have to get past this part as I'm fairly nervous about my first glassing experience. I'm afraid i'll end up with a big mess that I'll just have to grind off.

 

[Woodonglass]

Re: 1974 Ebbtide Restoration

Re: 1974 Ebbtide Restoration

Use Duct tape to tape off the holes so the PB does NOT ooze out onto the outer hull. Are you drilling holes in the transom to form the mechanical bond?

 

[mercurymang]

Re: 1974 Ebbtide Restoration

Re: 1974 Ebbtide Restoration

Use Duct tape to tape off the holes so the PB does NOT ooze out onto the outer hull. Are you drilling holes in the transom to form the mechanical bond?

I'm on the fence. So what you would do is cover it with a layer of 1708, let it cure, then drill the holes?

 

[Woodonglass]

Re: 1974 Ebbtide Restoration

Re: 1974 Ebbtide Restoration

Uhmmm, no. To install the transom I coat the bare wood with resin. I put a layer of CSM on the side that will be glued to the outer skin and let it cure. I then drill a series of 1" holes in the transom wood. This will allow the PB to ooze thru when clamped to the outer skin. This forms a sort of mechanical bond with the outer skin as well as an adhesive bond. The 1708 layers are used to bond the transom with the sides and bottom of the hull. It's all shown in the drawings in the link.

This member and his son, did a classic transom install using the method I recommend. Starting on page 11 and going onto page 12 of their thread...http://forums.iboats.com/boat-resto...r/1982-sylvan-bassboat-project-526064-11.html

 

[mercurymang]

Re: 1974 Ebbtide Restoration

Re: 1974 Ebbtide Restoration

ok. Looks like i need to purchase some CSM. All I have is CSM backed 1708.

 

[mercurymang]

Re: 1974 Ebbtide Restoration

Re: 1974 Ebbtide Restoration

Last night I placed an order for 10yds of 1.5oz CSM. Hope it gets here quick.

 

[mercurymang]

Re: 1974 Ebbtide Restoration

Re: 1974 Ebbtide Restoration

While waiting for my csm to arrive, I figured I would get my feet wet in the resin making department. I didn't make PB cause I dont want to waste the material but just wanted to mix up a small batch and get a feel for the process. I have a bunch of the 1 pint mixing cups that also has ml deliniations on it. I have not found a good measuring device for the hardener so I just used the measuring cup that came with the hardener. I poured out 100 ml into the cup. By the way, I read on here the trick of laying the resin bucket on its side with the spout at the top. Then, by slightly rolling it, you can stick you mixing bucket under the spout and pour exactly what you need... that worked like a charm.
Anyway i put what i figured was between 1 and 1.5 ml of hardener into the resin and mixed it for 2 minutes. The ambient temp here tonight is about 85 degrees. After mixing I poured half onto a board and let the other half in the bucket.
After 10 minutes it was still fluid. At 20 minutes, I could see that I was just beginning to setup. Finally after about 40 minutes, i bacame rather warm and would not run. It was tacky but was definitely setting up.
I'm going to keep my eye on it and see how long it takes to completely cure.
Anyway, I have finally mixed a batch of resin. Bring on the csm.

Edit: after about an hour, it was like a hockey puck.

 

[jbcurt00]

Re: 1974 Ebbtide Restoration

Re: 1974 Ebbtide Restoration

Hockey pucks? Branch out, have some vision. Modern works of art they are:

I sell mine at the local over-priced coffee shop. Can't keep them in stock....... This year I plan to do a whole series of them, for artist's paperweights.......... :lol:

 

[Woodonglass]

Re: 1974 Ebbtide Restoration

Re: 1974 Ebbtide Restoration

While waiting for my csm to arrive, I figured I would get my feet wet in the resin making department. I didn't make PB cause I dont want to waste the material but just wanted to mix up a small batch and get a feel for the process. I have a bunch of the 1 pint mixing cups that also has ml deliniations on it. I have not found a good measuring device for the hardener so I just used the measuring cup that came with the hardener. I poured out 100 ml into the cup. By the way, I read on here the trick of laying the resin bucket on its side with the spout at the top. Then, by slightly rolling it, you can stick you mixing bucket under the spout and pour exactly what you need... that worked like a charm.
Anyway i put what i figured was between 1 and 1.5 ml of hardener into the resin and mixed it for 2 minutes. The ambient temp here tonight is about 85 degrees. After mixing I poured half onto a board and let the other half in the bucket.
After 10 minutes it was still fluid. At 20 minutes, I could see that I was just beginning to setup. Finally after about 40 minutes, i bacame rather warm and would not run. It was tacky but was definitely setting up.
I'm going to keep my eye on it and see how long it takes to completely cure.
Anyway, I have finally mixed a batch of resin. Bring on the csm.

Edit: after about an hour, it was like a hockey puck.

Just remember in direct sunlight with temps in the 80's it will kick a lot faster.

 

[bvetter]

Re: 1974 Ebbtide Restoration

Re: 1974 Ebbtide Restoration

Next time you place an order for glassing materials, get a catalyst dispenser like this one.



The top cup is graduated in mL (CC's), you just squeeze the bottle until you have the desired amount in the top cup, then pour into your mix. It's a real time saver, in my opinion, and helps keeping you from making mistakes with the ratio. I think it costs around $6, so why the heck not. I can't imagine how much time it's saved me along the way.

 

[Woodonglass]

Re: 1974 Ebbtide Restoration

Re: 1974 Ebbtide Restoration

Or go to the drug store and get some of these. They're real cheap too... $5 bucks for 100 of em.