Saturday, December 15, 2018

Alcort Super Sailfish ZSA ZSA 15 Dec 18 Toe Rail and Rub Rail Epoxy

15 Dec 18:

Released the rails, refastened the toe rail and rub rail with thickened epoxy. Screws to hold them to shape until epoxy dries. The thicker epoxy fills gaps and ensures a better bond between pieces. This product is good for use below the waterline, where ZSA ZSA's rail will spend a lot of time, it can be drilled, shaped, sanded and painted. It is also flexible, not as rigid as straight epoxy, so it will move with the wood a bit. We chose Jamestown Distributors TotalBoat THIXO because it mixes in the mixing tube, no guessing on how much filler to add to straight epoxy. It is also faster to mix up and use, but the cost is more per drop than resin/hardener/filler. Pettit makes FLEXPOXY, we used it a lot and like it, but it runs several dollar more per tube.

Epoxy for the deck edge seam, rub rail and toe rail.

As the pieces were pulled together with screws we looked for epoxy to barely squeeze out, which indicates that the joint is full. That is all the pressure that epoxy needs to bond, it does not need high pressure like glue, in fact too much pressure can squeeze the epoxy out of the joint. After the piece is attached we use a paint stick to remove larger bits of squeeze out, then slide a gloved finger along the perpendicular seam to make a curved fillet. This fillet helps shed water away from the joint. Be careful running rags or paper towels along seams as that can dredge the epoxy out of the seam. Another tip is to check the seam after it dries, sometimes the wood soaks the epoxy into the joint and it might be desired to apply another small bead of product. Here is a seam after we radiused the joint.

Coated the inside of the mast trunk and daggerboard trunk with epoxy.

3 tubes of THIXO for the seam, mast step and daggerboard trunk.

Alcort wooden collection, (L-R) 1950s Super Sailfish, 1965 Sunfish, 1950s Standard Sailfish.

Log of ZSA ZSA.

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