1st fiberglass project

Ok heres the deal, this is my first FG project, I am putting it in my 90 mustang vert, here is a pic of it.



This is 3 good layers of FG in the spare tire well, I put masking tape below that to keeep it from sticking to the metal.


Here is where its at now

Here is where its at now..

My question is how can I attach the fleece, when i put it on, to the existing FG or did I go about this project the wrong way?   Will it make a good enough bond when I FG to the FG that I have already done? I have been planning to just duct tape the cloth to the FG and staple it to the wood rings and then put my first coat of resin on it. Does that sound like a good plan? Thx for any help, I have another question but can't think of it right now! I will definitely post pics when I'm done.

get a good quality which will be expensive, but don't go cheap on it or you will regret it, trust me, spray adhesive. I used 3M Automotive Spray Glue or something like that, I know it says Automotive on the bottle though. It is white with red writing. I wouldn't suggest the 3M Super 90 as it is more wet then tacky. The Automotive spray goes on alomst tacky, I guess you can call it semi-tacky, let it sit for 30-60 seconds and then when it is nice and really tacky and sticky go ahead and start on top of one speaker ring and lay your fleece over then move to the other. same thing for the back of the enclosure. I like to add a little bit of resin to the inside where the FG and fleece meet as added support.

LoL btw if you don't want anybody to see your license plate then make sure it is out of all of the pictures *hint hint* lolz

do you think I can split the project up into the part in front of the rings and then the part behind the rings? It is going to have some technical curves in the front to get it to meet up right. Hopefully that spray adhesive is strong enuf.   

Also what did you mean by:
"I like to add a little bit of resin to the inside where the fg and fleece meet as added support."

You are talking about the top of the circumference of the wheel well right? not the wood rings...?

Thx for the suggestion, Sounds like the best option so far!

Also what do you think for my first project so far?

What I meant by that was this. . . Let's say you have an mdf box, look at the box as the FG project you are building now. Got it so far? OK well the bottom piece will be your wheel well, and the 4 pieces you add around that to make a box without a lid will be your fleece over the project you have now. Now where the 90 degree angle is made between the horizontal bottom piece(FG in wheel well) meets the 4 vertical other pieces of mdf(fleece) put FG there like you would caulking in an mdf box with MAT. I hope you understand that. Your project is looking good so far. Just take your time and do it right the first time. Also what subs are you using? Did you calculate airspace and clearance with the way you have those rings set? Also you are gonna want to make sure you have your clearence with your trunk lid closed. It is a lot of trial and error so if your not sure about ANYTHING ask k bud. Hope that helps you out.

I have thought everything out pretty well! I got the car with 2 DHD subs. They need about 1 cu ft each or 1.5 is better. They were in a box together that was less than 1 ft cu total. The total volume of just the spare tire well is 1.99 cu ft. I am hoping/estimating that the total box volume is around 2.1 or i wish 2.2 cu ft total then minus driver displacement. The trunk lid has about a foot of closing clearance. The subs have plenty of clearance also I have test fitted them.

I intend to replace these cheap subs with eclipse aluminum or titaniums in the future and the box will still be right on for those subs thats why I am using this size box.

I appreciate the concern, many people overlook things in the middle of a project!

i wish this forum had an edit option! Its not a foot of clearance to the trunk lid but it closes with no problem. Several inches.   :) I didn't want to be called out on that comment.

sounds good man, and the site does have edit option, but you need like 100 posts or something like that to have that option.

Once you reach 50 posts, you become a "standard" member and you can edit your posts.

When you reach 250, you become "Silver" member and you will be allowed to delete your posts.


Nice job on the project. I will be visiting you soon to help out with the project now that I know which license plate to look for



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I have not failed. I've just found 10,000 ways that won't work.

When you do not know what you are doing and what you are doing is the best -- that is inspiration.

Yep...looks like a CA plate to me LOL

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The Flakman
I feel strange. I have deja vu and amnesia at the same time.

John | Manteca, CA

Flakman wrote:

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"You can lead a horse to water, but if you can get him to float on his back...you've really got something!!"

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LMAO, that caught me off guard, you must have added that recently.

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I have not failed. I've just found 10,000 ways that won't work.

When you do not know what you are doing and what you are doing is the best -- that is inspiration.

one thing you might want to try, sounds a bit ghetto but works is to get some of that foam that expands like craxy and overfill the area you want to glass. then shape it with sanders and stretch whatever over it. glass it then to get rid of it use acetone and you have a nice empty box.

Well, I got 1 way stretch material and stretched it over the rings, used super 77 spray adhesive, stretched all the way to the fiberglass pan same adhesive. Then when I went to fiberglass the resin completely destroyed the bond of the super 77 adhesive. Now the box is lookin bad because all the material came unstretched and is wrinkled. I panicked and started to staple the fabric back in place but it was too late. Here are some pics of it wrapped before I added glass. Gotta strip it back down to the pan and wooden rings again

"If at first you don't succeed, try it a different way" you got the juice man. Keep up the good work.

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I have not failed. I've just found 10,000 ways that won't work.

When you do not know what you are doing and what you are doing is the best -- that is inspiration.