Originally Posted by beau
The problem would be that ALL foam will eventually take up water
unless sealed, and then the boat will be heavy.
Very true and to add bad to badder - the expandable foam in the quantities needed is quite heavy in and of itself. It is possible that doing the foam or fiberglass
outside covering you will be significantly changing the empty weight of the dinghy.
- - Normally as the dinghy ages, the hypalon or PVC is attacked by UV and starts leaking just about everywhere. And also the cloth gets easier to puncture and tear with age.
- - I found after years of attempting to patch leaks
and failures - the "secret". I had to translate it from the instructions with a box of 2-part hypalon glue from Italian to English
. The "secret" translated in English
was "extreme pressure for 2 days." That means that after cleaning
and applying the 2-part glue and patch you need to take two wooden boards/planks and some "C" clamps and squeeze/compress the patch to the tube with the C-Clamps and boards and then let them cure for two days. It can be quite challenging to do this with leaks
near seams or attachments and is probably why professional dinghy repair shops charge so much money