How much fibreglass is really necessary to prevent damage to a plywood boat for most users?
For a long time I’ve been suspicious that both designers and builders are in a never ending spiral of more and more heavier fibreglass.
I argue, with data from the Turner designed Jarcat, that the weights of glass are clearly excessive for most uses and users of small boats.
This podcast/mp3 talks about why Australian (and New Zealand) wooden boatbuilding is different from the rest of the world..
Click to listen to the talk. This is the third of three.
This talk is the first hour of my exposition on boat building and design. There are two more parts to come. This covers some of the background and design issues. The second is more on the building side and the last is a bit more about why the Australian (and New Zealand) wooden boat tradition is different from the Northern Hemisphere.
You can stream the talks over your internet connection or download them as a podcast.
There was the suggestion that very coarse sandpaper was the best to use on a timber surface to ensure good bonding when gluing or fiberglassing the surface. This is not recommended – the following explains why. There was the suggestion that very coarse sandpaper was the best to use on a timber surface to ensure read more →
There are two tricks to sikaflexing between strips. Use the Sika Primer – it improves the bond strength to the timber for a permanent job. You can get away without it often, but it changes the situation from a fairly strong bond to a hugely strong bond (you’ll know this if you have ever removed read more → Paint vs Varnish Paint is more durable and will protect the epoxy and timber the best. Varnish hides a rough surface better. If you have done a rough job the timber grain will hide it. Make sure the varnish contains ultra-violet filters. Us My usual plan is to varnish the inside of open boats and read more →
Fiberglassing larger areas is done differently from small. Large areas require that the glass be draped dry over the surface then the epoxy is applied over the glass and worked through the surface. The example here is glassing a centreboard but the principle is the same for much bigger areas like the bottoms, sides and read more →
One of the great leaps forward available to us when using epoxy is being able to eliminate fastenings (screws,nails, bolts etc) from the structure. Many builders now only use fasteners to temporarily hold things together while the glue sets up.The temporary fasteners are removed and can be re-used many times. Eliminating fastenings also speeds up read more → Yep, Just spent a good three hours whipping up another 14 pages for my website. Mostly additions to my epoxy, boatbuilding and boat design FAQ Topics covered are: Efficient Restoration an older racing boat/sailing dinghy Are 1 to 1 (1:1) Epoxys any good for boatbuilding A lightbox to keep epoxy warm so it spreads easily read more →
English