Thread: Another OZ MK2 PDRacer build in Sydney "Wood Duck"

Originally Posted by AlexN

Hi Cliff!

Great to see you pop up again . On further thought, a tape rollback or similar would take a bit longer than the five minutes or so that the Forum was supposedly offline .

I trust that the weather is a lot warmer where you are .

Cheers,
Alex.

Read this post.
https://www.woodworkforums.com/f36/la...ltdown-120370/

18°C windy, watery sunshine, the first since Friday, at least it has stopped raining but it will be back tonight.

Hmmm...a bit warmer than here, but not by much. Curious.

Thanks for the link to Neil' s explanation :).

Cheers,
Alex.

Originally Posted by AlexN

Hmmm...a bit warmer than here, but not by much. Curious....

You aren't 865M above sea level.

Originally Posted by Cliff Rogers

You aren't 865M above sea level. :D

Ah - that would explain it :).

A.

Apart from the upper edges of the bow and stern transoms, the undercoat sanding is complete!

Final undercoat sanding: darker patches are where the undercoat has thinned to a point where it's no longer as opaque as it was - and the grey primer is making its presence felt...


Follow this link to my Funny Flickr Farm <froth froth, foam foam>. Well, to be nice to Flickr - for once - while they've "added" an extra step, they've subtracted three or more, so I am now at least two steps ahead :). Excellent, Flickr. Now leave it as it is anddon't fiddle with it! So as not to test people's patience any more than it is, I'm sticking to the "original" medium sized photos - which is now the "smaller medium" size in Flickr's menagerie of image sizes...



The next photo should show the 'Duck in the first of its yellow coats, albeit most probably spotty where I've gone through into or very close to the grey primer. I'm considering the first coat as a "fill coat" - I get three coats out of the 1 litre tins, so will only need another 500 mL or 1 L tin, depending on what sort of Brightside quantitiy I can scrounge. I've got some dust-removal to do first before any colour-coating, though. Topcoats on future boats will either be International's "Toplac" or BoteCraft's "AquaCote" - I'm curious to see whether the latter is as bad as its reputation would have it.

Right, well, I've passed another milestone with the boat today - the first colour coat is on! I have some photos of the event:

1. The paint: one 1 L tin of International "Brightside" Yellow: all stirred up and ready to go :). The next photo is the one with the paint on the boat...





2. Three-quarters of the hull bottom done; my daughter ceremonially put the first rollerful of paint on. Taking MIK's advice to really spread the paint out (to reduce bubbles) worked a treat. Photo taken with flash





3. Three-quarters painted; without flash





4. Full coat - photo without flash: note the slightly greenish cast courtesy of the fluoro lights. So much for the camera's "automatic white balance". Note also the glossy nature of the finish :)





5. Full coat, photo with flash: less green, more red...





6. Full coat, starboard side with flash





7. Full coat, starboard side without flash. Nice mirror-like surface - from a distance, anyway





8. Hull viewed from stern, with flash. Look at the nice reflections :)





9. Hull viewed from stern, without flash. All the scratches and imperfections that were present at the end of the undercoat sanding were of course painfully obvious after the first top coat - hence my comment about it being a "fill coat" of sorts, in my previous post. This coat will get sanded back using 400-grit paper after 36 hours of curing. Once sanded nice and smooth - i.e., no visible scratches! - the next coat will go on, and the cycle repeated until I am satisfied with the depth of colour, smoothness and gloss...


Follow this link to my Flickr account where you can be blinded by the larger sizes of these bright mostly-yellow photos, and marvel at Flickr's updated look - if the fit takes you



Having followed MIK's advice scrupulously (for once ;) regarding the not-overloaded roller and the spreading out of the paint in order to avoid bubbles (which worked very nicely, thanks MIK :), I only used up a fifth of the tin or less, so in theory I will be able to put on five coats. That is, if I can stand to do such a thing, or if in fact it will be necessary. I think at least three coats to hide the grey patches, and four to bury the scratches, so maybe five won't be so wide of the mark. That makes it about ten days all up to finish the external, but I also have a lot of resin work to do, which will get slotted into the slack times, temperature permitting.

Anyway, I'm very pleased to have got to this point, even if the colour coats are nowhere near complete. It gives me a bit of a kick-along to get other stuff finished as well.

It's at this point Alex that all your patience is rewarded, nice crisp chines and a flawless finish.

Well done but as the Pope kept asking "when will it be finished Michelangelo"

Originally Posted by m2c1Iw

I... "when will it be finished Michelangelo"

Coupla dayz, coupla dayz, baaa-ute-iful.

Originally Posted by m2c1Iw

It's at this point Alex that all your patience is rewarded, nice crisp chines and a flawless finish.

Well done but as the Pope kept asking "when will it be finished Michelangelo"

Hi Mike,

Ahem . The "flawless" finish is yet to come...lots more "patience" will be required to attain that end .

And as I say now when people ask when it will be finished: "when it's finished" .

Cheers,
Alex.

Originally Posted by Cliff Rogers

Coupla dayz, coupla dayz, baaa-ute-iful.

Hi Cliff,

I wish! I'll get a better idea of when the colour finish will be finished when I've sanded the first coat back (a lot). I checked it this morning and it was still very soft, so the 36 hours (recoat time @ 5 degC) on the label looks like the minimum 'twixt application and sanding. Another check tomorrow morning...

Cheers,
Alex.

Hi Alex,

I know the painting isn't finished yet, but it looks fabulously smooth and shiny even now, congratulations.

Originally Posted by dhgomm

Hi Alex,

I know the painting isn't finished yet, but it looks fabulously smooth and shiny even now, congratulations. :2tsup:

Hi David,

Many thanks for your kind words :). I was looking at it moderately closely this morning, however, and there is also a pronounced roller stipple remaining in the (albeit bubble-free) surface texture: not as bad as the preceding primers, etc., but still highly noticeable. It likes me not, but apart from spraying, I'm really not sure how to eradicate it. Brush and lay off at 90 degrees? That would likely be worse...

Cheers,
Alex.

On applying a thin resin coat to one side only of the foils this arvo, I decided that I need to sand the board back to the glass and recoat, when the weather is warmer and drier. There are too many opaque/milky patches (most of the board) where the timber is either occluded or "muffled". Given the dodgy nature of the resin in later coats (the one this afternoon was using a good, fresh batch), I'm not fussed about doing this, nuisance though it is. I can leave the sanding till one of the last things to be done, since I don't want the board absorbing any more atmospheric moisture than I can help - it's going to be a while until I get things like painting, varnishing, sail-sewing and hardware fitting done anyway.

To say that I was disappointed when I realised what I was going to have to do - and that I'd wasted another batch of resin - is something of an understatement.

What news of the paint? It's still a bit green even after 48 hours at around 12 degC, and the only way of sanding it effectively at the moment is to use the wet-and-dry wet and with a very light touch. And I'm going to have to sand the whole thing because I've been experimenting with various grades and also used the ROS (the latter was not a good idea) and the thing looks a bit like a patchwork quilt at the moment, especially as the paint layer is so thin. I know, I know, I should have put a few more coats on before sanding, but quite a few bits of fluff fell out of my jumper onto the surface while painting, and I didn't want to leave them embedded. Keeping the six-legged flying animals off is going to be a challenge too, given their general attraction to yellow: The hull is in effect a gigantic sticky trap when that paint is wet.

I didn't get a lot of time to do much on the paintwork today, hence in part the patchy nature mentioned above. I hope to have more of a run at it tomorrow...