Then, we decided to try this new enamel on the daggerboard. Tomorrow we will give the second coat.
Total work time to date:684 hours
Diary on the construction of a Seaclipper 20, a plywood trimaran designed by Jim Brown and John Marples. Our boat's Sail No. is 50. The boat has been named GEODETICA and was launched on september 28th, 2024.
Saturday, April 27, 2019
We're back
Hiya all! After a very long interruption due to several reasons, here we are for what we hope it's going to be our last period working on the boat. We worked three hours this saturday, to give one of the three hulls the final sanding prior to painting. Our previous experiments have shown that the water based acrylic enamel is too soft, and we decided to use a specific one-pot polyurethane enamel.We lightly sanded one of the float hulls using 240- and 320-grit, and than cleaned it.
Then, we decided to try this new enamel on the daggerboard. Tomorrow we will give the second coat.
Total work time to date:684 hours
Then, we decided to try this new enamel on the daggerboard. Tomorrow we will give the second coat.
Total work time to date:684 hours
Saturday, September 15, 2018
Washing the hulls
Since we had given the hull additional coats of clear resin to fill the fibergass weave, we had to wash them again to remove the amine blush in preparation for the final sanding and painting. That's how we spent three hours this saturday...
Total work time to date: 681 hours
Sunday, September 2, 2018
Deck seat painting
The last six days went in successive application of 3 coats for each side of the two deck seats. Here's the beginning
We then discovered that we do have a problem with this paint. While the finish looks pleasant and durable, the paint softens if soaked in water for several hours. So we have decided that we will use this paint only for the top sides, and accepted the idea of using toxic paints (most probably one part polyurethanic enamel) for the hulls and the appendages.
Total work time to date: 678 hours
We then discovered that we do have a problem with this paint. While the finish looks pleasant and durable, the paint softens if soaked in water for several hours. So we have decided that we will use this paint only for the top sides, and accepted the idea of using toxic paints (most probably one part polyurethanic enamel) for the hulls and the appendages.
Total work time to date: 678 hours
Sunday, August 26, 2018
Deck seat washing and sanding
Five hours of work this week end. First we removed the amine blush from both sides
We then bored the 4 bolt holes using an oversize 15 mm bit to allow for coating with slightly thickened resin bringing the diameter back to 12 mm. To do that we used 12 mm bolts wrapped with adhesive tape to keep the resin separated from the steel. You could see the tips of the bolts protruding from the hole
We then bored the 4 bolt holes using an oversize 15 mm bit to allow for coating with slightly thickened resin bringing the diameter back to 12 mm. To do that we used 12 mm bolts wrapped with adhesive tape to keep the resin separated from the steel. You could see the tips of the bolts protruding from the hole
Finally, we sanded and cleaned both sided in preparation for painting.
Total work time to date: 673 hours
Friday, August 17, 2018
Painting the false transom and the rudder blade
The last six days we painted the false transom and the rudder blade with 3 coats on the upper side and 3 coats on the lower side, and every day we had to wait 24 hours for tne next coat.
Total work time to date: 668 hours
Total work time to date: 668 hours
Thursday, August 9, 2018
Swing arms done
About one our between yesterday and today to apply the second and third (final) coat on the swing arms.
Total work time to date: 665 hours
Total work time to date: 665 hours
Tuesday, August 7, 2018
Painting the swing arms
Two hours between yesterday and today: yesterday I gave the third and final coat on the upper side of the swing arms; today I gave the first coat on the lower side.
Total work time to date: 664 hours
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