Plastering Day  -

Gimbal Hull

Mud (two sand, one cement plus a little acid to control ph and limit corrosion) is pushed through the wire until air is driven out.  


Then after it starts to stiffen slightly, back plastered from outside.  This sets the bulk of the material in the wire.  


As work moves along we knock most of the mud back off  just barely down to the wire with a trowel.  This takes off weight and prepares the outside surface.  


The inside also gets stripped of excess and we fill anything missed up to this point.


Back over the whole exterior with a skim coat to provide the final finish while controlling the final thickness. The skim coat has to set a while prior to finish work.


Timing is everything as the crew works around the boat areas become ready for the next operation at different times.  A great plan and experience really help but in the end someone has to be the boss and direct the work.  This is dad's boat, so as on the sea, the captain is the commander and has to push the crew hard to keep things moving fast enough to outrun the setup times.  Things always go wrong; mud too thin,  setting up too fast (or slow), flat exhaustion, wire problems, frustration and even worker revolts – rare.


Most of the crew is done for the day as soon as the tools are all washed down.


A quick pass with a wet float a needed to help smooth and establish shape.


Troweling and shaping continue until it is fully set and nothing else can be done; late into the night.


The last and very important step is to cover the hull with burlap bags and/or old blankets and set sprinkler hoses all around it.  The idea is to keep the whole hull wet for a month.  This will slow the final setup of the cement and make it much tougher.


Of course I am writing this from memory and will accept corrections and alternative methods.  Not many folks have had a chance to do this kind of work so I thought it best to share, before I forget.


Enlisting labor and thought in leu of money produces results that defy the lazy mans replication. You could do it too   (copyright 2010, Ken Adkison.)