fiberglass to MDF
Printed From: the12volt.com
Forum Name: Fiberglass, Fabrication, and Interiors
Forum Discription: Fiberglass Kick Panels, Subwoofer Enclosures, Plexiglas, Fabrics, Materials, Finishes, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=32544
Printed Date: July 23, 2025 at 7:38 PM
Topic: fiberglass to MDF
Posted By: mysupra6speed
Subject: fiberglass to MDF
Date Posted: May 21, 2004 at 9:58 PM
#1 The sub box i built sits sunken into a piece of mdf. The bottom of the box is in tire well, the top you can see. I rabbit cut the box into the mdf so it sits down in 1/4". my question. Will fiberglass stick to mdf ? I just need to add enough glass to "blend" the top of the sub box into the top of the mdf. I was thinking of drilling holes into the mdf so the glass would adhere better. Thought I would ask here before I did. any suggestions. #2 Kittyhair. do you have to mix that with something? I thought that would save time in the blending process.
Replies:
Posted By: 93accordSE
Date Posted: May 22, 2004 at 6:07 PM
If I was you I would glue the mdf to mdf, and reinforce it with screws, and then fiberglass over the mdf, with my experiences with mdf and fg it has stuck pretty good.
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Posted By: 93accordSE
Date Posted: May 22, 2004 at 11:20 PM
I'm just curious, how did you rise those rings for the subs? Looks like 5 gal. buckets? and what do you want your enclosure to look like in the end? I see where you want to put the fiberglass over the MDF, it should stick just fine. Good job on cutting that mdf out. I gotta do that for my trunk, one of these days when I get some money and new subs (JL12W7s). -------------
Posted By: mysupra6speed
Date Posted: May 23, 2004 at 6:54 AM
I used PVC for the mold. (round part) the rest I fabricated a mold out of 1'4 plywood to form the box.. What do I want it to look like in the end? GOOD but that seems so far off. I was going to carpet the whole thing in black. I want it to look clean. In fact I want everything else hid, amps, crossovers, wires ect......... After looking at the project last night I thought I could mount the sub box where it is and be able to lift out the MDF around it. That may make it easier to run the wires and service the system. What do you think? If I do that I could drop the sub enclosure down another 1/2", that would solve the feathering prob. The two would almost line right up (top surfaces) I keep changing my mind on the end product. Never have done this before I do not know if this thing is to rough to sand and paint. The I don't know if I can cover in leather with the curves. To tell you thetruth this whole thing thing has me really *ucking frustrated. I want a simple custom look and to be able to say "I built it" Thanks for the reply. Scott
Posted By: mysupra6speed
Date Posted: May 23, 2004 at 9:50 AM
Posted By: 93accordSE
Date Posted: May 23, 2004 at 11:03 AM
I don't know if you have ever looked at other projects. I would suggest looking over hzemall.com, you could maybe get some more ideas from his work. The MDF you have is a good start you just need to rethink the fiberglass part to make you feel like its coming out good. I change my mind all the time too. I started doing my door panels and changed my mind, I was going to pain them, now I want to vinyl them, which makes me have to buy a whole new door panel because one has fiberglass and body filler all over it. You got a niice supra :)
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Posted By: pureRF
Date Posted: May 23, 2004 at 3:54 PM
Fiberglass will stick to MDF. Just take a very low grit sandpaper and sand it down a lot and get ALL the sawdust off. Then take a razor and cut it all around to give the glass somthing good to stick to.
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dream it, build it, fiberglass it
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