fiberglassing the boat hull

      After 1340 working hrs in two years time,the hull is finally ready for fiberglassing.By reviewing numbers of articles and info gather from some boat building forum regarding method for fiberglassing.I guess Im ready for the job.

After cleaning the surface ,a layer of seal coat with epoxy has been applied prior to applying the cloth.

the surface has been lightly sanded again to remove dust,dirt and any amine blush after curing by using self made sanding board.Cleaning the surface is needed with solvent by using a rag soaked with thinner and ready for the second coat,which is the glass coating.

8/5/2013   

                                                                                                                       

Layout and precut the fiberglass.

With the help from my brother to prepare the resin,it took us 6 hrs to finish the fist layer of mat to the bottom of the hull.The side of the hull and I thought  I can finish it myself.It took me 11 hrs just to finish one side of the hull,crazy job.

Time and strenght doesnt allow me to continue to apply the second layer of biaxial to the precure of the first layer.After the first layer turn full cure,just have to prepare the surface again by sanding.

Sanding the surface in progress.

 Laying up a full lenght biaxial

completed fiberglassing the second layer of biaxial

fitting the spray rail

 

15/06/2014

Wow,didnt notice so long not updating this blog,sorry,been busy with business,work on this project bit slow.

Anywhere,I had already finnish laying up those rail and glassed two layer of matt on them.The hull was cotted two layer of epoxy to cover the wee and for sanding purpose.

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Fiberglassing

Once the boat looked all nice and shiny with perfect wood grain showing through the epoxy finish, it was time to mess it up...big time. So I fiberglass taped and epoxied the joints. I started with the keel joint and used 6" wide tape.

This tape was taped into place with some blue tape to hold it straight and overlapped the transom about an inch. The boat was already prepped for another coat of epoxy, so the fiberglass tape was epoxied and the whole boat got another coat of epoxy. After watching the Glen-L video on how to epoxy a boat, I followed their best practices of taping all joints before using the fiberglass cloth to cover all surfaces. The chine joints were taped and then the transom to bottom and sides were taped. Foam rollers were used to saturate the tape with epoxy. I found a 3" roller worked the best as quite a bit of rolling pressure is needed.

After trying some different epoxy filler to fair in the tape edges and finding sanding difficult, I went and bought some West Systems 407 fairing filler. Since the bottom will be painted, I got over the need to keep the wood pretty and figured I may as well use the right stuff for the application at hand. This filler is supposed to be mohoghany color, but it reminds me of chocolate milk. I slapped it in the areas needed to smooth out the tape transitions and sqeegeed it into a somewhat smooth surface. After curing, sanding with an orbital sander and 80 grit paper worked well and edges could be feathered and surfaces smoothed quite readily. At some point in this process, my wife came down and said "What the Hell?". I quickly explained "It all gets painted later". So it all looked like hell, but was smoother. I kept with just clear epoxy on the sides so I can keep the natural finish, but unthickened epoxy runs and sags like crazy (after you leave the room - just to be sneaky) so its a bit of work to scrape and sand them out.

Then I fiberglassed the transom as suggested in the video to get some practice and confidence. The cloth was cut and taped in place to overlap the bottom by 1-2" and trimmed to fit over the sides a like amount. Corners were smoothed into shape without cutting. Epoxy was rollered in and it all went smoothly. After cure, the edges were sanded down to feather in.

I then laid out the bottom fiberglass cloth on the bottom and trimmed to fit about an inch inside the chine line. My friend Ted said he kept all the cloth overlaps on the bottom of his boat and it simplified the feathering process, so I did mine the same way. I precut the cloth for the sides by splitting lengthwise some 38" wide cloth and rolled it up on shop vac pipes. My daughters boyfriend, Brett was here for an Easter weekend visit, and since he has fiberglassed a boat before, he was drafted into service. We mixed epoxy, rolled it on the bottom and smoothed out any wrinkles and bumps. Brett mixed more epoxy batches, I rolled, and it progressed quickly. We then pre-coated a side and rolled out and positioned the cloth to overlap the bottom 2-3" and trimmed the ends as needed. We rolled on some more epoxy and worked it into the cloth and then did the final side. My daughter Katy joined in and we had three rollers going. It took about 1 1/2 hours to complete the job. After curing for a few hours, the fiberglass hanging over the edges was trimmed with a utility knife. It felt good to have this major step behind me. Thanks Brett!

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