| 2002Targa wrote: |
| It's pretty lumpy and choppy . . . I was even thinking about getting some bondo to smooth things out a little bit. It's going to be covered with nylon so I don't know if that would be needed. Once I rough up the inside, I'll lay a couple more layers of glass to strengthen it up a little bit. |
May I offer up a suggestion? You can reduce the lumpiness by hitting the epoxy coat with 24-to-60-grit sandpaper right as the epoxy starts to set, but before it gets hard. That is, monitor the epoxy as it dries. When it turns tacky, you're just about ready to hit it with sandpaper. When you can feel that it is gummy, but no longer sticks to your finger or pulls away, start shaping with the 24-grit, then move up to the 60 grit.
Let that set, and then apply a coat of short-strand fiberglass bondo. Again, wait until it starts to "kick" (i.e., get gummy). It's easy to shape with 24-grit at that point. Move on up throught the grits; I usually go 24, 60, 100, 150, 220, 400, and then 600 wet-sand.
You don't need to cover it with anything at that point if you go with some good build primer, like K-38. That stuff is easy to sand -- and if you make a mistake, just add more bondo or epoxy (thinned with Acetone) and keep sanding and shaping. Finally, after you've laid down the last coat of primer and wet-sanded to 600, shoot it with your favorite color (or, because it's an 02, paint it black).
If my write-up is less than clear, just google for some surfboard sites. Most of them use some form of gel-coat, but for automotive, the K-38 plus a nice coat of color will wind up looking great. And, the painted kicks will hold up better against wear and tear, than covered kicks.