Well, it is nothing special but it hits alright ofr an 8"... There are alot of good websites with great write-ups but here is a quick one...
This is not a How To but rather a short intro...
First you have to tape off your area like so...note:Usually a fiberglassed box would replace the entire panel so the speaker box become the new panel. However, I just used this nice little space and worked from there. This was first mistake...I will discuss later.
Then you mix your resin with the hardener, take your fiberglass weave (~3x3" pieces) and use a paint brush to spread the resin onto the weave and onto your mold. You want to overlap as much as possible and use more weave on the flat surfaces as fiberglass is stronger in the bends and weaker when it is flat.
When it is dryed you have to pop the mold out. This can be tough, but try and pry from different spots so you don't crack your new box! Remove the tape and then cut the rough edges around to fit. I used the black line you can see in the first 2 pics as a reference.
Next, you use wooden dowels and hot glue to mount the o-ring where you want your speaker to sit. Use alot of hot glue as you don't want it moving. You need a good sized piece of fleece to stretch over the o-ring. You can use 3M adhesive to get the fleece to stick to the back of your mold and stretch it so that it fits snug around the o-ring. This is going to the front of your speaker box now. Once snug, you fiberglass away! Mix the resin again and generally apply the resin to the fleece. The reason my box didn't come out too great is because the fleece started to move on me. Make sure it is really glued down tight to the back of the box. Also, because the mold was going in the tight area, the fiberglass that dried on the back of the edges made the box different than the mold originally made. Thus, the box doesn't sit flush in its mounting area. However, I used some dynamat type stuff to fill in the area and it doesn't look bad. Then again this is a Jeep and I didn't care too much, haha.
I am trying to get pics of the finished product but my computer is being odd!
