Plastic Classic Forum

Zach

The two bolts keep the mast step from trying to slide around on the deck when stepping the mast, or if your break a shroud.

I would put them back, but overbore the holes in the mast beam and fill them with thickened epoxy to reduce the chance of rotting out the new beam.

Zach

Zach

You can do it, but you'll want a pad eye on the deck or cabin side to bring the block in from the rail with a big genoa to get some sheeting angle back, where the line runs up to the block and back down to the rail with a fixed eye or loop in the center. Genoa tracks are a pain, but the spring loade...

Zach

Have you tried POR15?

It is ridiculously tough paint for the underbody of cars, and wants a layer of flash rust to bond to. You can't break it beating it with a hammer, nor chip it off.

Zach

Zach

Call the manufacturer.

I've always been told by sales reps that a solvent free epoxy (not "epoxy paint") has a near indefinite shelf life as in 30 + years.

Zach

Zach

I don't know if passivating comes before or after polishing, as I've never had it done. Ease over the corners with 120 grit, and sand up through 220, 320, skip to 600 on a power sander. I use an 8 inch pad sander. I'd carpet tape them to the workbench fairly close together, and work one side of all ...

Zach

How to use what you've got and not pull your hair our: A small Gauge on the gun its self is a good idea, as is setting the tank pressure as high as possible with an inline regulator to bring the pressure down to 5 PSI or so above what the gun needs... and reducing the pressure further with a gun mou...

Zach

Quick tip... Try to find a chunk of aluminum or copper roughly 4x4x 1/2 inch thick. Hold that on the back side of the weld as a heat sink, until the tack cools and it will keep the panel from warping as badly. Also, both sides of the panel need to be completely free of paint, grease and oil for opti...

Zach

For the epoxy required to repair it as built... You'll probably have 3 gallons in to it by the time you are done. I would: Cut out the existing hull liner, leaving a fiberglass lip 2-3 inches wide around the sole. Wedge some Clear #1 salt treated 2x4's under the hull liner at approximately 16 inch c...

Zach

Quick tip: Put mylar packing tape down the side of the truck where you want the frame. Rough up the edge of the frame with 40 grit. Slather Bondo on the front side of the frame with no air pockets. Press against the mylar packing tape. Have a friend hold it there for 3-5 minutes... Pull it back off ...

Zach

That takes serious dedication... One of the guys I worked with a few years ago told me a story about such dedication. The night before, he got off work and and walked out to his truck... and someone was hammering, banging, prying and trying with all their might to steal the ball and hitch off the ba...

Zach

http://www.dremel.com/en-us/Accessories/Pages/ProductDetail.aspx?pid=545 --- Today I tried one for cutting a layer of excess cured fiberglass off overhanging a radius... and it worked great to cut it off flush. It is almost as fast as using a metal cutoff wheel on a mini grinder like I've been using...

Zach

I have a sample of this stuff laying around, that I haven't ever tried:

http://www.mascoat.com/mascoat-marine-i ... paint.html

The big boats use it.

Ceramic Loaded, water based "Paint" that lowers the heat transfer to the inside of the hull.

Zach

Don't give up on the torch yet. The torch does work, but hold it 8-10 inches up and keep the flame level to the surface, not pointed at it. Use it to heat up the epoxy so it is more viscous. Its not instant, you are just trying to get enough heat that the surface tension breaks and lays out flat. It...

Zach

If memory serves Tim has tinted Kiwi Grip custom, at the local paint shop...

Might be worth an email to see what is possible.

Zach

Zach

Also for the gap between your steel rails, you may want to find some kids modeling clay and pack it in the gap to contain any drool. If you have to leave the wooden spacers in place, wrap them in mylar packing tape and chip them out when you are done. Sand out the leftover tape, and pull epoxy in th...

Zach

For your belt sander gumming up you need a gum rubber abrasive cleaner. http://www.amazon.com/Big-Horn-19547-12-Inch-Abrasive/dp/B001DDTIYW/ref=sr_1_1?ie=UTF8&qid=1343652897&sr=8-1&keywords=abrasive+belt+cleaner For your epoxy screed, 610 doesn't pull very well. You'd be well off to use ...

Zach

Are they putting her back together?

Zach

Zach

If you are concerned about it, the easiest way to get it to sink on its own or stay down is to fill a cavity full of lead. It used to be a common thing done on the old wooden boats with big wooden rudders. The boat would heel over, the rudder would float and give more weather helm than it ought... T...

Zach

Makita 1 3/16th by 21 inch belt sander. http://www.amazon.com/Makita-9031-16-Inch-21-Inch-Variable/dp/B00004YOH7 For those places that your router can't reach on parts built in situ... and inside corners you otherwise spend your lifetime sanding with a paint stick and 40 grit. I use it a lot for cle...

Zach

What is your shipping address?

I've got a few chunks laying around that may do.

Is this for a deck stepped mast, or a keel stepped mast? In any event you'd be much better off laminating a slab of marine plywood. White oak isn't known for lasting through time.

Zach

Zach

I make a sandwich of plywood and aluminum and tap the holes for the hardware to bolt on. It's extra handy for places you can't get to hold the backing plate in place. I've installed backing plates this way 4+ feet past where a human can crawl with a stick with a rag taped to it covered in acetone, a...

Zach

Hi Scott, I use a 3M 7500 Silicone (blue) half mask a lot of the time, when seeing what you are doing is important, long board sanding and general paint work. Heavy grinding, and things I need better eye protection than safety glass can offer... I have a full face mask that is a 3M FF-400, that has ...

Zach

Are you wanting to pull line plans off the drawing, or are you working around an existing boat? I use an ancient copy of Bob Cad from the DOS age for 2d drawings... and Solid Works for 3D/solid models. For the outside lines I use a pencil. Pictures that are blown up to an accurate scale. Measure the...

Zach

I would not try to match a plywood veneer, use this as an opportunity to install a whale foot pump for the galley sink. Repairs are repairs, and modifications can always make a repair look like it was intentional. Grin. To take it apart and not tear the world up, put some blue masking tape across th...

Zach

Epoxy is much more expensive, and has a longer working time... but also a longer time between sanding. Its very much, sand the whole boat... putty the whole boat. Tomorrow, sand the whole boat... putty the whole boat. Its a bit of a time drag, as some point you have to simply decide it is time to mo...

Zach

Gumming from polyester is normally from not enough wax, or using laminating resin instead of finishing resin. Laminating resin does not have the wax. Depending on how old the resin was you were using, the wax could have floated out of the container leaving you with laminating resin, particularly if ...

Zach

Pretty work!

Zach

Zach

I like a relatively dull fillet knife... Grin.

Balsa shears easily, and the round shape of the blade makes it easy to cut around corners. (Not round corners, but around them... bigger grin.)

Zach

Zach

If the boat drains aft, I would study the drain at the outboard well to see if a flap of rubber or a simple one way valve couldn't be installed so the water pressure of a following sea can't find its way back in. I'd try to decide if it is water pressure from the wave lifting the boat forcing water ...

Zach

Advice: Do all glass work now, and not later. Grin. Plastic up the boat, to protect your primer. Flush mount the Perko drains: Lay up some 1/4 inch thick fiberglass sheet, 2-3 inches larger diameter than the flange of the perko drain. Drill out the hole in your cockpit sole with a hole saw bigger th...

Zach

I use a binks 95 and 2001 spray guns. I like the 63 needle, air cap, and nozzle. The 63PB Air Cap lays top coat nicer than the standard. I have 63's, 66's, and 68's... but 63 can spray pretty much anything you need to do. They won't spray tooling gelcoat, but that wasn't the question... I use a pres...

Zach

Find a chart that has the tap size for the size thread you are working with. Normally they are numbered, or lettered. If the hole is centered, drill it out again to the tap size. Then take a pair of tiny needle nose pliers and pull the threads out like a coil spring. If the hole is off centered, dri...

Zach

Measure the cockpit sole, I may have a piece of 1/2 inch corecell around that size laying around. Fret not the volcano bump. Cut the top skin off around it! 2-3 inches off the outside of the bump. Route out the core material that is in there, pack it full of epoxy and cabosil, grind the bevel around...

Zach

You can save the top skin for re-use but it is more work. You will lose the non-skid outline and texture. You will have to drill a whole bunch of holes for the excess epoxy to get through. Even then it will not be bonded as strongly to the core as new work, and will be softer feeling under foot than...

Zach

Very cool Charlie!

Have any more pictures along the way?

Zach

Thanks... Lots of rubbing and sanding! On the sliding hatch, if I recall it slides in from the back and doesn't have a stop. Most boats have a molded in, or removable piece at the front of the opening that prevents the hatch from moving any farther aft than the back of the cabin without it being lif...

Zach

Tallystick,

You might try getting some sheet wax to build a channel up around the existing groove so your seal is taller.

Zach

Zach

I had one for a few years... They are a lot of fun. I had a 6 horsepower outboard on it, and it would coast nearly 200 feet from entrance of the marina back to my slip with the motor in neutral. Its probably the easiest boat I've ever had to sail solo. The boat won't broach in the pinned down death ...

Zach

Hi Guys,

I'm on the hunt for a new set of bronze pintles and gudgeons for my triton. Looking for sources that folks have had good luck with getting them in a reasonable amount of time.

Thanks,

Zach

Zach

Update: I have had a piece of MDO plywood overboard for two months in salt water, and then two months in fresh water. It has taken on a bit of water through the end grain, the faces have stayed mostly intact. The very outermost edges of the facing has swelled a bit. I also put a piece of high end ex...

Zach

Remove the untrustworthy rotten wood from your support panel and build it back to about the same scale that it was. It worked well for this long. If you leave rotten wood, it has a tendency to spread as it is alive... fungus and spores that like to eat the next piece of wood. A layer or two of fiber...

Zach

Are you spraying or rolling?

Zach

Cool! I didn't know that about Micron Extra. That may sway my future paint choices...

Thanks,

Zach

Zach

You can strike your boot top now, but don't paint the bottom paint until a day or two before she goes over. Bottom paint oxidizes and isn't much good after it has... See if anyone, anywhere has a line plan of the boat. That would be the easiest... Find a picture of the finished boat, and print it ou...

Zach

Beautiful work!

Zach

Proseal is available in gallon cans, direct from the manufacturer. I like glass bubbles more than phenolic ones, for price as well as the sag resistance. As far as print through goes, 410 actually has a warning about using it on hot/deck surfaces as it will move around. What color is the cabin? Fini...

Zach

You can use a steel brush, but you may get some rust specs later on in the project.

You can also try a 3m rust and paint remover. It's an abrasive sponge looking thing that you can spin in a drill.

Zach

You should be good to go so long as you don't end grinding through the top layer to smooth out the deck. If it is still within 5-6 hours of the time you started, immediately go mix some fairing compound and apply it. After 5-6 hours, amine blush becomes an issue, and you have to wait till full cure ...

Zach

You are welcome... I don't have any pictures off hand, but I hope this sketch helps. Screw lamination, you hold the plywood doubler up to the bulkhead in question and screw it to it dry... Don't go through the other side, so short screws. Make a reference mark, back out the screws, mix glue. Spread ...

Zach

I like your layout/design plan. I have not used MDO, though one of the suppliers I use stocks it, and recommends it for painted walls or wallpapered walls. Its around 20 bucks cheaper than marine grade okume, uses type1 glue and is probably the longest lasting wood based product invented by man. I d...

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