Monday, October 24, 2016

Hull Paint Project, Part 6

Placida, FL

Here is the expert advice I got from Jamestown Distributors after they read my previous blog post and looked at the picture.

Looking at the picture, it appears that the paint ran and left brush marks. Causes are usually too thick a coating was applied and having thinner on the brush will cause the paint to run.
After sanding the paint down, be sure to clean the surface well using denatured alcohol on a rag, then wipe dry with a clean dry rag.

We suggest thinning the paint 5 - 10 percent, use a foam roller. Prior to rolling, run the clean roller over some tape with the sticky side up to remove any particles on the roller. It may look clean, but this really does make a difference. Roll on a THIN coat, if thinned properly it should lay down smooth without the need to tip. For the first coat you will need to do a light sanding before the second coat. If that works well with an even smooth finish then do the same method for the second coat. If you are still getting sags and runs you are not rolling it out thin enough.
 I still have doubts about it being too thick. I'm an engineer and I do things by the numbers.  THICK or THIN are not numerical,  ml/ft^2  or  ft^2/ml are numbers.  If I spread it twice as thin as last week, I have enough paint for 6 coats, but the quantity ordered was supposed to be enough for only 2 coats.  Nevertheless, next time I'll spread it as thin as I possibly can.

My personal theory about the mistake was using thinner on the tipping brush.  It was running thinner that created the problem.  We won't do that again.  I did it because a YouTube video on roll and tip, talked about thinner on the tipping brush.  Note that now I am advised to do almost no tipping at all.

Of course, everyone else in the boat yard, plus all friends and relatives all have their own advice to give; and (guess what) the various advisories don't agree with each other.  I can't allow it to be a project designed by committee.  But I'm going to call Greg and ask for his advice.

Our Status: On Sunday we finished the hard work of sanding off the paint.  We could have been ready to repaint the primer coat today, but the package with the new paint won't arrive until Wednesday.  We'll have to waste some time until the.

Thursday, October 20, 2016

Hull Paint Project, Part 5

Charlotte Harbor Boat Storage

We are in the process of sanding away the botched paint job.  It is very difficult because this paint is very very hard.  It will take 5 days power sanding to finish.

Here is a picture showing the bad job.  I spray painted black over the top, then I partially sanded it to make the imperfections visible.

I have three theories of what went wrong, and no good way to verify which it is.

  1. We did not spread the paint thin enough.   Countering that, the can says coverage 100 square feet.  I spread it 150 square feet. On the recommendation of Jamestown distributors, I bought 6 750 ml cans of paint to complete two coats.  We used only 2 cans on the first coat not 3.  Still it seems too thick.
  2. We moved too fast.  We did the whole 300 square feet in one 4 hour period, 7-11AM when the temperatures were within the allowable range.  That means a lot of moving ladders, and little time to revisit painted places and tip and re-tip 10, 20, 30, 40 minutes later.
  3. When tipping with the brush, we might have been too generous with paint thinner on the brush.  It would be running dripping thinner, not paint that ruined the job.
Any thoughts?

Tuesday, October 18, 2016

A Major Shift in Plans

Port Charlotte, FL

This morning, Libby and I bought an RV permanently sited in an RV park.  Based on that, we also decided to go slow on the paint project; and do it right.  Given that, we don't want to hurry to Marathon to get a mooring ball before they are all gone.  Instead, we'll leave Tarwathie on the hard until next spring when we hope to go to the Bahamas with Pat & Walt.

Don't get alarmed.  That does not mean that we are in poor health or that we are giving up cruising. However, I guess it does move us more firmly to the status of part-time cruisers rather than full-time cruisers.

I don't need to explain myself to blog readers, but I will anyhow.  Here's the real story.

  • Recently we visited cruising friends Pat & Walt in Vero Beach.  They mentioned that one reason for buying a house in Vero was financial security.  Pat said, "If all our money is in the stock market, and if the market crashes, we would be screwed."  Owning real estate is a disaster hedge.

    How true. With this RV we will have a place to live at a cost affordable enough that we could survive on Social Security along if all our savings were lost.  It makes sense.

  • Cruising friends Darrrick & Sharon last year bought a trailer in Florida.  They still have their house and boat.  We decided to visit them this weekend, to take a break from painting.

  • Well their place, Olde Mill Stream RV Resort in Umatilla, FL is a jewel.  The same things that appealed to Sharon & Darrick appealed to us.   It is not an RV campground, not a trailer park.  It is restricted so that customers can live there only 8 months per year.  That eliminates permanent residents and 100% of the clients are snowbirds like us.

    The RV park also has lots of amenities.  rec room, pool, a lake, tennis, pickle ball, free storage for small boats & canoes, gated, good security, very affordable, no taxes to pay.
  • Umatilla is in central Florida.  Cracker country.  It is far enough from the maddening crowds of both coasts to be like a time machine looking 50 years in the past.  Nowhere near Umatilla will you ever see a Hillary Clinton yard sign.  But yuppydom is not far away.  The outer fringes of Metropolitan Orlando are only 5-10 miles away.
  • We bought an older RV, a 2000 Franklin Park, 39'.   The price was only as much as a 5 year old used car.  The price also includes a years park fees/rent prepaid.   This is a so-called destination model RV.  It is designed to live in rather than to be mobile.  It sits permanently tied down to the site in the RV park. Don't ask me the difference between this RV and a mobile home.  It is designed to avoid the laws regulating mobile homes.
  • Libby and I look upon this as an experiment.  If this alternate part-time life appeals to us, we'll keep it.  We'll divide the year between visiting the kids, and Tarwathie and the RV.  If we don't like it, we'll drop the idea, sell the RV and we won't loose too much money.

  • In case of financial or medical disaster, we have a backup housing solution, and a very pleasant one indeed.
So meet, ... (we haven't named her yet.  Suggestions welcome.)

    p.s.  To many of you, this trailer looks small.  To boaters like us, it appears HUGE!   For example, all the clothes we own will only fill about 5% of the hanging closet space.

    p.p.s.  I've written before that the thing Libby misses most while cruising on Tarwathie is the lack of her own garden.  I miss most the inability to own a Lazy Boy recliner chair.  Now, we'll have both.

    Saturday, October 15, 2016

    Hull Paint Project, Part 4R (Reject)

    Charlotte Harbor Boat Storage, Port Charlotte, FL

    Ay ay ay,  I have to eat my words from yesterday's post when I said all went well.

    I inspected the work last night before sunset.  IT WAS TERRIBLE! :-(.    We missed several spots entirely.  There were ripples, drips,  brush marks, and "orange peeling" everywhere.  It was certainly far from the mirror finish we hoped for.    I tried hand sanding the imperfections with 400 grit sandpaper.  But that top paint dries hard as diamonds.  The hand sanding did nothing.  

    I decided, "No painting Saturday.  I'll take a day to sand off the imperfections before continuing."

    This morning I went to Home Depot to get some sanding discs finer than the 220 grit that I already have.  Turns out that 220 is the finest grit they sell.

    I started sanding with the 220 grit paper.  After 5 minutes I noticed a spot the size of a dime where I over sanded through 3 coats of paint, all the way down to the grey primer.


    OK, what the root cause?  After reflection, I see that we were in too much of a hurry.   We painted the entire hull in the 3.5 hour time window from 0730 to 1100 when the sun angle and temperatures were within limits.   Clearly that was too fast.  We hastened to roll, then tip, then move the scaffolds and ladders to the next spot, and we barely finished by 1100.  That did not leave enough time to revisit the spots previously painted to look for drips or ripples forming, and to tip them away with thinner before they dried.  I now realize that each section needs to be revisted and potentially re-tipped every 10 minutes up to an hour.  We were going much too fast.

    Also, I realized that with white-on-white, that neither Libby or I could see the missed spots in the bright-bright Florida sunshine.  They only became visible in the weaker light before sunset.  Again, a symptom of being hurried.    In sunlight, we need to get down at the ladders and peer at the hull from all possible angles to see missed spots.

    What to do now?   I don't want to be too hasty again  If I over sand, it will make a bad situation worse.  We are going to take 2-3 days off, go to visit Darrick & Sharon and I'll think this through before continuing.   That also gives time for any blog readers to respond to this with advice.  I need good advice.

    p.s.  I've been taking pictures every day, but I was planning on publishing them at the end.  The imperfections aren't visible in my pictures.


    Edit: I was able to find 320 grid discs on even though the local stores don't carry them.

    Edit: I should also mention that Libby and I are very adverse to living in a boat yard.  That contributes to our hurry-up-and-get-the-job-done disposition.

    Friday, October 14, 2016

    Hull Paint Project, Part 4

    Charlotte Harbor Boat Storage, Port Charlotte, FL

    We did the first top coat this morning in 3.5 hours.  Nothing special to comment on.

    We will do the 2nd coat tomorrow morning, then cover the sides with tarps because of the possibility of rain.  The chance of rain is 20-40% every day from Saturday afternoon through next Friday.

    I think we have enough paint to do three top coats rather than two.  I can hardly wait to see how good the final product looks.