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Materials

Teak Decks and Sikaflex, 5200 etc

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 […]
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Goat Island Skiff Plan - simple building and very fast

Q&A – Painting and Varnishing Epoxy

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.  It is a photo from the Goat Island Skiff Calendar put together by […]
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Q&A – Reducing labor and waste when using epoxy

There are a number of labour and materials saving techniques that are applicable when using epoxy. Contents of this section Wet-on-Wet Coating and Dewaxing Cured Epoxy. Building strong lightweight boats – a note on the use of epoxy One Hit coating and gluing Wet-on-Wet Coating and Dewaxing Cured Epoxy. As epoxy cures some of the […]
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Q&A – Fibreglassing method 1 – small areas

This is the normal method for fibreglassing small areas – typically using fibreglass tape to hull seams. Here I document the process of coating the hull and glasstaping the chines in one hit. Integration of different steps in this way is one of the major efficiencies of modern epoxy boatbuilding. However if simply glass taping […]
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Q&A – Fast boat repairs with no fasteners.

Hole in Boat and More Fasteners in traditional construction are the ONLY way to go – whether metal or trunnel. But once moving over to glued construction there are certain advantages in eliminating the fasteners as far as possible. We’ve made a bit of a career of it over the last 20 years or so […]
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Q&A Teak Decks and Sikaflex

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 […]
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Q&A Epoxy Resin vs Polyester Resin for Wood

Should one fibreglass using epoxy or polyester resin over wood.  In this case it was to join the plywood panels of a stitch and glue boat. First, Woven fabric will give a smoother finish than chopped strand matt and is much stronger for the same weight.  It also requires less filling of the weave to […]
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Q&A Epoxy vs Resorcinol Glues

This was in reference to a deck repair – what glue to use to apply teak planking to a plywood substrate. It makes general comparisons between the glues Epoxy is gap filling – so if there are gaps between the ply and the deck substructure the epoxy will have no problems. With a deck done […]
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