Fiberglass trunk

This is my first post so I’m sorry ahead of time for any mistakes I may make.

I have a 1999 Durango and I’m looking to make a custom enclosure from the second row seat back to the opening of the trunk. I have made to other pieces with fiberglass a playstation and xbox rack that look as if they are popping out of the floor, and a sub box with fiberglass to achieve the desired cures. I currently have 2 JL 10 W0's that sound great but I’m thinking of adding 2 JL 12 W0s. When I make the subs pop out should I fiberglass from the speakers to the box to seal it and then fiberglass over it to the sides of the truck or just go from the speakers to the side of the truck. If I am confusing the heck out of you tell me and ill try and rethink the way I described it.

And I’ve seen some people using what it looks like plexiglass with a dust coating on it. What exactly is it?

i dont know if you can read that casue i cant

This is my first post so I’m sorry ahead of time for any mistakes I may make.

I have a 1999 Durango and I’m looking to make a custom enclosure from the second row seat back to the opening of the trunk. I have made to other pieces with fiberglass a playstation and xbox rack that look as if they are popping out of the floor, and a sub box with fiberglass to achieve the desired cures. I currently have 2 JL 10 W0's that sound great but I’m thinking of adding 2 JL 12 W0s. When I make the subs pop out should I fiberglass from the speakers to the box to seal it and then fiberglass over it to the sides of the truck or just go from the speakers to the side of the truck. If I am confusing the heck out of you tell me and ill try and rethink the way I described it.

And I’ve seen some people using what it looks like plexiglass with a dust coating on it. What exactly is it?

This is my first post so I’m sorry ahead of time for any mistakes I may make.

I have a 1999 Durango and I’m looking to make a custom enclosure from the second row seat back to the opening of the trunk. I have made to other pieces with fiberglass a playstation and xbox rack that look as if they are popping out of the floor, and a sub box with fiberglass to achieve the desired cures. I currently have 2 JL 10 W0's that sound great but I’m thinking of adding 2 JL 12 W0s. When I make the subs pop out should I fiberglass from the speakers to the box to seal it and then fiberglass over it to the sides of the truck or just go from the speakers to the side of the truck. If I am confusing the heck out of you tell me and ill try and rethink the way I described it

And I’ve seen some people using what it looks like plexiglass with a dust coating on it. What exactly is it?

First:  Are you doing 12" and 10" subs?  If so then don't.  That will sound like crap.  If it's just two 12" then I wouldn't do that either.  Upgrade to two 10" 10w3v2.  Save a couple extra bucks and it will be worth it (more power handling abilities and a better sq in my oppinion).

Second:  I think I get what you want w/ what to fg.  Go from the speaker ring to the side of the box.  Tack the fleece to the side and fg that.  Make sure that when you are putting the resin down that you go over the edge enough to let the resin absorb into the mdf.  This will seal the fg and the mdf base.  Understand?

Third:  If the dust coating is in a pattern (like logos or a design) then yes that's plexiglass you see (or something equivilent).  And that "dust coating" is normally a sanded area of the plexi to give it a "frosted" look.  It's normally done by a sandblaster I think.

Yeah when you combine 12" and 10" subs they DON'T sound good.  It's like playing one 10" sub at one frequency and another 10" sub at another.  They don't go together good.  Anyways the four 10" subs sound like a sweet setup too.

If you're fging the whole trunk then fg the whole trunk.  It doesn't hurt to fg the box either.  If you're blasting four 10" subs then that's a lot of pressure for a flat surface.  I'd go ahead and fg it.  And I would still wait and get the 2 10w3v2.  Might be small but I bet when you have the power they want they will put two 12" (MTX, Alpine, RF, JBL, Audiobahan, Infinity, maybe even some of the Eclipses') subs to shame (sq and spl).  I've got one 10" Infinity and I kill my friend's 12" Power Coustic (he doesn't have the best but there is still no comp. to mine and his).