so i started building my fiberglass enclosure. Here is the process I'm using:

1. building sub rings / base out of mdf board
2. covering the rings / base with fleece
3. coating the fleece with a layer of fiberglass resin
4. puting 2 layers of fiberglass mat on the outside of the enclosure

Now my questions are:

1.What kind of fleece should i use, thin, stretchy, not cotton? (i havent bought it yet that's why im asking now)

2. Does it matter if i put the fiberglass mat on the inside or the outside of the enclosure? (i read a tutorial that said its stronger to fiberglass the mat on the inside)