I am about to start on my WD12 kit. I was reading that when gluing the joints the epoxy needs to be mixed with silica powder to a mustard consistency. Then you use some fiberglass tape over the joints. I assume this is a two step process and the epoxy used with the fiberglass is a second batch, this time no silica. That makes sense to me, but, first time so I need to ask the basic questions.
Thank you. I would not have waited for the "glue" to cure. I was planning to glue all the joints then come right back with the tape and a batch of epoxy.
The first part worked well, now I am about to glass the joint, does that also get the weight treatment? I did not think so, than, was reading Lazlo's "Building a Wood Duck 12" website, and it seems that he did wieght them once the glass was there...
Thought so, that will happen this evening, then, this weekend, the stiching begins....
Thanks again.
Hey Jeff,
I used the weights because I did everything in one fell swoop - joints & glass - so they needed to be immobilized. For that matter, in my kit the joints were so tight that I didn't bother with the silica. I just brushed the joints with epoxy, laid them flat and taped them. There was no gap when everything finished curing. Even if there had been, they would have been filled when the outside was glassed. But it's probably safer to follow the manual.
Laszlo
Thank you, I have the glass on now, I will let it sit until after work tomorrow. Then the fun begins...
Sure wish CLC would offer a Duck class out here in the Pacific Northwest.
Well it was my first wetting out fiberglass, I think I overdid it with the epoxy. it is a bit thick. Does anyone think there is any issues? I asume I will still be able to stitch the piece together without any trouble???
Jeff, there shouldn't be any issues a sanding block can't fix. On the Koholo I'm working on they even suggest planing the panels at an angle to make a flush fit.
When doing puzzle joints on that I used heavy plastic under and on top over the cloth with weight over plywood at the same time all with straight epoxy. The advantage of using plastic over the cloth even without weight is surface tension it keeps the epoxy filled to the top of the cloth eliminating any secondary fill coats,air bubbles and roughness of the cloth seams.