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10 Whiner

About Zach

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  • Location
    Beaufort, NC
  • Interests
    Sailing, Motorcycles, world travel.

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  1. Ya might investigate Hull Guard Extra for your base before awlfair after grinding rather than 545. I've been rather pleased with what it covers from porosity compared to 545, as the mil-thickness you can build in a coat makes it act a bit more like thinned out gelcoat.
  2. Zach

    Spraying the inside

    Awlcraft 2000 isn't bad to shoot interiors with and doesn't yellow... and if you do a clean job of the bead board spraying, you can do a chemical tie coat to the 545. Not that sanding bead board is hard, it just takes forever, and tacking down to get the dust off to keep from orange peeling isn't exactly easy. The plus with awlcraft 2000 is you can touch it up later with a little preval sprayer, and can be brushed (barely) into small dings.
  3. Zach

    Gear Heads Only

    Drag link socket... If you have a bench grinder you can do a bit of fitting work. If you've got slotted oval heads, the flat bottom of the flat head, isn't always totally flat, so you can grind both a little radius, and a negative draft into the sides of the face so they key up a bit better. You want just a touch of negative draft in the sides, rather than a taper or dead nuts square. Sharpie mark the end, rub it in the slot and look for contact til you are happy...
  4. If it takes more than a few revs to get started you may have a bad diaphragm or seal in your fuel pump and sucking just enough engine oil to make your smoke. If they rebuilt the block and head, but uninstalled/reinstalled the fuel pump that might be one to study. Late timing does white smoke too, and is more of the hanging lingering type than too much fuel. But I'd put a tester on your coolant cap and verify that you aren't making pressure from a head gasket leak, as a diesel without glow plugs doesn't take much of a warp to have a one way leaker on a head gasket.
  5. Zach


    ABA hose clamps.
  6. Be careful of the chunks if you overcoat what you've got... anywhere you sand over and the paper still loads up, is more uncatalyzed stuff than not. In that if the it has only dried out/solvent evaporated, and even in real thin film have a tendency to lift down the line. I'd sand down til you can see through it, take a sopping wet rag with T0006 and make sure that what you leave doesn't lift color onto the rag. Normally it's the bottom of the mix cup, so where ever you did last or left thickest shows any chunks. I use fiberglass window screen for a first pass filter, on sprayable and highbuild, though for small quantities you normally can get away with a filter cone with a few cuts in the mesh and stirring highbuild mostly through the mesh, picking out the chunks as you go. Bit of a pain... Had a guy working for me for a while that liked rolling sprayable fairing compound and did a side of a boat, strained it through a 5 gallon bucket grid... with rather predictable results as far as the chunks go. End up with little white dots and holidays that are uncatalyzed and spend half a day changing paper on long boards loading up the grit. "did you filter it?" Of course... "What did you use..." Holds up something you can drop gravel through.
  7. Shoot some pictures. I just got done gel coating a cabin top, after laying a layer of veil mat and filling lows with offcuts, grinding with a 7 inch and 36 grit... pad sanding with 8 inch 40 grit. DA with 60... You can't really do that anywhere near by hardware attached to the deck, it's not all that hard, just a lot of work for a guy with the occasional carpal tunnel flare up. Catch is that it helps if you've got a shed full of burned up grinders. Grinding the sticky off is a heavy touch, floating it out is a light touch... pad sanding a heavy touch. DA a light touch. Then once you can see "it" long boarding with 40 hard enough to see the high, pad sand down til they aren't... with 40 once again. The gel fills the pin holes, but if you are rolling it, it's a 2-3-4 coat process before you add wax, and then tomorrow I've still got a fair bit of acetone wiping and heavy sanding to get back to where I see veil in the high spots. Straight glass work, is straight paint work. Veil and Gelcoat is a cheap/fast filler... but it is harder work than any other option. If you have localized issues, then it is a much smaller job than my earlier post about fairing and paint work, and i'd be in the camp of spot repairing and getting a good 545 surface built up where it needs to be. Then patching in your top coat and getting a look that the gloss surfaces look good, less the patch.... Then buzz out everything, fix the dings, and roll some fresh top coat over it.
  8. Zach

    Epoxy, Screw Holes and Wood

    Yup. If you've got a lot of the same hardware to do... stanchions, etc. Hardened drill guides in an inch and a 1/2 wood with a piece of carpet tape on the bottom will make your backing plates match too... A lot of boat stuff is 1/4 inch, and a drill guides are reusable, just make the holes in the block a hammer fit. Aircraft bits and a pair of bullet levels get close, but a drill guide in a block stuck to the deck means it matches top to bottom. May not match the bevel of the level on the inner skin if a lot of fairing has been done on top, but the bolts will hit the plate in the same hole up to 2 1/2 inches or so of depth. Cheers
  9. Zach

    Epoxy, Screw Holes and Wood

    If the width of the board is wide enough to do it... take a forstener bit, and go a 1/4 inch deeper than the screw you are using. Wet down the inside the hole wih neat resin, then back fill the hole 3-4 diameters larger than the screw with west and milled glass fiber. The next day, come back, drill and tap the epoxy plug for a machine screw, rather than a wood screw... you can dunk the screws in epoxy and get a better bond if you want. I power - tap the holes freehand with a tap in a drill small cordless drill. The epoxy on the screw remakes any issues with the threading. To remove, take a soldering iron and hold it to the screw head. Once it's too hot to touch they back right out. Works well. Buddy of mine cats into place mounting bolts for pretty much every piece of hardware they use on the cold molded plywood boats, including the engine mounts, so once you get a system you like it scales up and down readily. Just don't use a wood screw, machine screw is where it's at... I agree that if it wasn't cherry, it wouldn't be worth the bother, but that'll hold ya. Cheers
  10. I know it Al Paca. I've got 14 bent up stanchions and bases sitting in my shed, and I'm eyeballing the not so unsubstantial cost to buy a new matched set once I'm finished up. A stack of boat bills a 1/4 inch thick doesn't go very far on new stainless and deck hardware.
  11. Fill what you can with 3M vinylester before you prime. Don't prime 50 grit, prime 80 grit. 60 grit is the sweet spot I like in that it doesn't take much material removal to get to 80 grit. Awlquick is not the right choice for filling crazing. It is very soft, and you need to thin it close to 50% to get it to lay out. It solvent pops if you let it puddle, so trying to fill defects on a horizontal surfaces gives more pin holes later in the process. Thin enough coats you can roll two coats in a day. Thick coats, takes three days for the surface to stop moving. You can sand something slick as a babies butt if you roll it on unthinned, and on the next sanding after priming with 545... hit a high spot that was dead smooth a few days before. Don't push it to be high build primer unless you give it time. Awlquick is about a third the way from 545 toward high build primer and 545, in that it builds twice as thick per coat as 545 but solvent pops if you try to roll it thick, or not thinned enough. I normally use half and half T00031 and T0006, thinned 35-50% if I'm rolling. It excels in rolling small areas, without any thinner, but again... takes two or three days for the solvent to work out. If you sand it, and it smells like thinner stop sanding because the surface is still moving. What I would do, is a layer of 545 applied with a brush and a squeedgee into the open porosity, X it off with the brush, squeedgee the surface after a minute or so to break the surface tension and so that the bubbles over the holes pops, then roll a build coat on. Then a second. Then inside the recoat window roll on two full wet coats of ultrabuild. Then come back and sand that with the same 50 grit. Once you've got the lions share of porosity and defects filled, you've got a locked down white surface that a will hold a pencil line to do any filling work with awlfair, then... use your awlquick to get up to 220-280 grit and 545 your way out. Any bigger defects or slight lows you can dish back to gelcoat, and use 3M vinylester for a spot repair and get back to priming the same day once you are in awlquick. For small stuff I use a dremel and a carbide burr and dig out a divot and fill them with Awlfair for the small pin holes. Once you are white with the ultrabuild, it is very easy to see where your defects are and a carbide burr makes it hard to miss. The big thing is not to have missed spots when you get to awlquick, as awlquick is much softer than awlfair and you get sanding halos around things, with a bright red dot in the middle. Do that before awlquick, and no dots or shadows in the 545 to see. Nice. Awlfair is a lot easier to cover if you buzz it over with 180-220 grit before awlquick. It'll show you any feather edge issues and make it a little bit lower and harder to hit later on. Gist is, don't spot prime high spots... so make your red filling, a little bit low and you won't burn through on dark colors. 80 grit awlfair you can sand off a coat with roller stipple and still feel scratches in awlquick. You can't feel 80 grit scratches, in a coat of awlquick, covered with awlquick. Tis the nature of things. Don't leave 80 grit until you've got a coat that is evenly yellow with no surface defects. I like 3M dry guide coat. You can refill with west graphite powder, but the red rubber nipple top works well as an applicator. A 16 inch short board with 3M green production 80 grit is handy for cabin sides. A few passes makes a big difference over any awlfair fills. Otherwise you can have a game of never ending high spots that turn pink when sanded. Once you have the surface yellow, you can put on 3-4 coats of 545, you won't burn through in a single easy sanding. If you put on 2 coats of 545 and burn through both times you still have to put on two more coats of 545... not to burn through. The roller stipple takes a lot of material to sand off, so just keep adding material until you are in the clear and you'll sand out easier. It is the nature of things, as a 2 mil build won't let you cut with a sandpaper that takes 2 mils of cut... Go around and put on 3-4 at the first go, and you have a lot higher success than doing two. You can use red scotchbrite or a soft interface pad with 320 grit in between coats just to take most of the shine off if you want... but just doing a crack of dawn rolling once the dew breaks, and another at 11... and another at 3... and another right before sun down can get you salvation if you make a day of it. Grab some T0006 and play with it. Thin enough coats, can get you moving quicker to build... once you go finger print dry it may as well be sprayed. It doesn't have to level so long as your base in awlquick is straight, it just has to get a mil thickness thick enough to stay inside the scratch depth of your paper. I have no problem using Awlquick, and use it like it has an expiration date... I've got a 2.8 gallon pressure pot, with 30 foot hoses so it is nothing to spool up 6 or 8 kits of it in a day... but it's main claim to fame, is the ability to spray 4-5 coats and put a 10-12 mils on in a day that is all yellow. Sands easy, and is easily covered by white 545. Just know that the caveat is, that it isn't high build primer, and it is softer than the surrounding materials so you can't get a clean sand unless your are burning through to 545 into awlquick and no other color than... yellow. Don't use the gray 545 as a sanding guide, as any low defects missed will be black spots. Your surface temp out doors on gray is extreme, so your working time to cover will rip the roller fuzz off. For pin holes in 545, get some evercoat ultrasmooth, and blue hardener. A pint should do a dozen boats, apply it with a box cutter blade. I'd consider using Interlux 2000 for the non-skid walking surfaces just because you can make time with that product to build up. Awlfair is sweet to work with, but any time you can roll a coat and float up an even surface it makes time. I don't have a problem using west 407 on decks under nonskid, it's not any cheaper than awlfair at wholesale, but if you are paying retail works out less per mixed volume. I don't like 407 for the gloss bits, as the different hardness of different batches is difficult for folks that want to leave 40 grit quickly. 40 grit fair, and 40 grit flat, is flat. Doesn't much matter how hard something is, if it reads flat, it is flat. 80 grit on a DA with two different hardness side by side will tell you damn lies. Two week old 407, and yesterdays 407 side by side don't sand the same. For the overly pendantic working different grades and brands of sandpaper: I like p400 grit working up to edge lines and fillets in 545, just because it cuts a little bit less fast than p320 grit. Do be aware that any wet-dry paper you pick up has a different grading scale in the US than imported paper, so if you are working a cami paper on the DA, and hand sanding P-graded, the P graded paper will be s you can be coarser than you want. Same number but the P-weight paper is coarser... Meaning P320 is coarser than Cami 320, and closer to 280 grit. So one has 320 grit and the other has 400 grit to be the same scratch depth/grit size. Shooting hand sanded stuff that is a cami 280 grit, and because it isn't P400 grit, makes for a very visible difference if you DA everything else out with cami 320. Hand sanding with cami 320, and DA'ing 320 beside it the hand sanded area will look flatter in color, so hand sand 400 cami, into 320 DA and you get about the same color. Red scotchbrite can make a difference over your hand sanded areas, as it is p320, but has a randomizing effect to scratch pattern. On outside corners you can trap a piece of it under your DA, and rub it around at random and make some time without burning through. Really helpful if your surfaces are long boarded true... Once things are flat enough, any material removal is asking for the whole pad to take an even cut... so only the stipple burns off. That doesn't really make a spit difference if you don't mind putting on four coats of top coat, but if you are aiming to get done in two or three, it can be huge. Normally the fillets are what show the biggest issue. Straight lines in the middle of a curve may as well have a dash of flattening agent in them. Cheers, Zach
  12. Zach

    Acrylic companionway sliding hatch?

    The new slider will be flat, so it'll be easy to replace the acrylic if need be at a later date. That'll take a little bit of finagling to get the height of the slides higher than the camber of the deck. Part of the desire is to have a hatch turtle that you can stand on, that is also flat. I'm thinking with the style pictured above, that the cover boards could extend forward and become the hatch turtle. I've got some 1/2 inch divinycell kicking around and a bit of leftover core mat, so the hatch turtle would be walkable. Right now the curve of the hatch has more camber than the the rest of the deck. It looks good, but trying to stand on it is like trying to balance on the top of a water pipe. Even with non-skid it tries to spit you overboard.
  13. Zach

    Acrylic companionway sliding hatch?

    That may well do, just enough to form a bead.
  14. Zach

    Acrylic companionway sliding hatch?

    Thanks for that guys, sounds like a uhmw slider screwed to the underside, with a drip edge might be salvation. I've always wondered about the teflon tape self adhesive stuff that some shops sell for sliding hatches, so it may be that it's a double number. It does actually remind me of a boat I looked at a few years back, a condor 40 trimaran. It had a hatch on rails much wider than the companionway, with a heavy weight plastic with a straight slot cut in it... but the rails and hatch were 6+ inches offset outboard of the opening into the boat. It was a chin scratcher at that moment, but in light of new information it makes sense.
  15. Hi Guys, I'm curious about acrylic sliding hatches, as I'd like to build one for my boat. I'm in the process of putting a new deck on her and have a curved aluminum hatch that drips condensation, tries to throw you overboard if you stand on it, has a lip edge that catches lines... and doesn't have a dog house. So in the next couple days I'll be tooling up to change that. I'd like to know the span width of some of the late model production boats companionways, and the width of where the acrylic rides on the track, and if they leak everywhere in rain and spray, as most I've looked at in pictures don't appear to have much in the way of a drain channel. So far my noodling is to make a mold (screw some coosa board strips down from the backside to a plywood bench top make the part as one piece, with a cross bar or two temporarily tabbed to it so the frame stays parallel then work the core parallel to the part, and have a flat lid for it to form the dog house. It looks like most of the production boats are using 1/2 inch smoked acrylic, with an inch and a quarter to inch and three quarter overlap on the runners... So spitballing numbers, a 27 inch wide opening would be a 30 inch wide piece of acrylic. Anyone have any insight as far as how tight things ought to fit, or any known gotchas with this type design? A lot of pictures I've seen don't appear to have anything that holds the hatch slide downward and just lay into place, or have a tight fitting groove and god only knows where the drainage lines go. Other than the vertical clearance to the boards that form the top, anything to it? The new Beneteau Oceanis style designs are simple enough looking that I'm at a bit of a loss if there isn't a c-channel hidden inside a drain channel to hold things down, unless the front end under the dog house just fits tight enough not to lift at the back, but given the boards over the top sit an inch or so higher than the acrylic I've got a hard time believing that there isn't something holding things down tight, less a wave coming aboard lifting the slider and giving you an inch wide gap to wet down the interior... Cheers, Zach