Saturday, January 4, 2020

Hull Interior Work

 After removing the deck, once again, the Bow and Stern forms wouldn't come off the hull-just like the last time I built a strongback without internal stems. Again, I had to "get medieval" to remove them. Oddly, I didn't really find any spots where the forms & hull were glued together badly, but I guess it doesn't take much. The wood glue on the duct tape seems to stick just enough to make it difficult.
I filleted the ends. In the past. I had left these wet, and put the fiberglass on the wet putty. This time, I'm going to let them dry, sand, and possibly use some more before fiberglassing.
I did sand the fillet basically, and skim on another coating of dookie. I placed form #3 back in the hull, by way of experiment to see if I can use the forms on wet fiberglass to prevent shrinkage. Form #5 is in the dry area.
I decide not to go "nuts" fairing the interior of the hull this time. If the glue residue is so tough, and so resistant to everything, some of it can stay in.
After 'glassing the interior, I placed three forms in the hull, and noticed that the sheer of the hull was actually wider  than the forms. The forms are (supposed to be) there to prevent the hull from shrinking too narrow, but there was a gap between the forms and the hull. I decided to tape them together & see what happens. This might have been the problem last year.
The usual end caps. I kept them as small as possible.
The skeg box in place. This turned out to be a bit of a finagle, because the center strip is covered in dookie, and I couldn't see it for alignment. I got around it by marking the center with two small holes. 
I'm also trying to pull the gunwales together with tape while the epoxy (supposedly?) shrinks. I placed a few forms in the hull, pulled the hull to them, and placed tape across the boat. I'm going to try this with hot-melt glue when I 'glass the hull exterior.
Interesting. After the third coat of epoxy cured overnight, the pieces of tape that were tight  became  slack. It seems that the epoxy takes a day or three to shrink. I'm definitely putting several forms in the hull while I 'glass the exterior.

No comments:

Post a Comment