Laminate the camping catamaran hull with glass fiber

In this episode I continue the build after the previous sanding. With a fair and smooth surface it's possible to laminate the hull with good result. Using heat and epoxy chemistry in a vise way it's possible to avoid the irritating air bubbles.

[@jollyroger7624]

I don't understand the benefit of the roller with the grooves along the roller instead of around the roller.

[@sailoutofagarage6212]

With the grooves along the roller (orthogonal) you push the air out of the cloth as you roll. If you had the grooves around the roller the air would stay. I hope this makes sense?

[@jollyroger7624]

@@sailoutofagarage6212 No not at all to be honest. I used the other (non orthogonal) rollers for years building boats and never had a problem. All they were is round nylon stock with a deep thread. Anyhow very interesting and good luck with your build.

[@sailoutofagarage6212]

@@jollyroger7624 Aha, now I understand your argument. Yes it will work with a standard roller as well. The orthoganal roller is however much easier to clean, just wipe with a papper tissue. A standard roller will have to be thrown away.

[@jollyroger7624]

@@sailoutofagarage6212 I see where you are coming from, but I should have mentioned I was laminating with polyester resin not epoxy. I did however coat a 34 foot steel deep keel yacht hull with epoxy 50 odd years ago, that was fun working outdoors. We did however use plenty of solvents for cleaning our equipment. I still have my rollers. More important I think to keep the glass dust out of your lungs than anything else.

[@sailoutofagarage6212]

Polyester is another thing, cheap(er) but I don't like that it's water degradable on a boat, thus I stick to epoxy. Yes I also think the glass dust is the most dangerous, at least long term. Unhardened epoxy is also not good but that is more acute toxic.