1st Sub Project
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=66092
Printed Date: May 05, 2024 at 2:05 AM
Topic: 1st Sub Project
Posted By: tazmn23
Subject: 1st Sub Project
Date Posted: November 12, 2005 at 12:57 AM
Ok, so I finally decided to jump in and start on the 2 sub boxes for my 10" JL's. First off, I can understand why it costs so much to buy a sub box already made..... them damn MDF rings are killer! Especially only with a little handheld jigsaw haha. But anyways, I got the rings cut and they fit like a damn glove. I layed down my first layer of fiberglass tonight and am letting it sit overnight. Odd question though, I laid down my fiberglass and went out like an hour later and it was still slightly "wet"...It is about 60 degress here and I used about 12-16 drops of hardener.....so im guessing its going to take all night? It will eventually dry I guess....I'll just use more hardener tomorrow... I only took a couple pics because my camera was low on batteries..... I couldnt even use a flash.... so here are a couple horribly blurry pictures. Cut the rings, put the tape down, and glassed it over.  
Replies:
Posted By: mikeva
Date Posted: November 12, 2005 at 3:42 PM
yea the warmer it is where you are working the faster it takes to harden.the recommended amount of catalyst to use is based on a certain temperature,i think around 75.so cooler than that you could use a few more drops,but not too much or else it could cause it to crack.it just takes some practice to get it just right.you could also use a hairdryer to speed things up a little bit.the same applies to bondo,kitty hair,etc.
Posted By: suicidecustom
Date Posted: November 13, 2005 at 2:41 PM
i wouldnt use a hair dryer or try to speed the curing process. resin and duraglass(kittyhair) both shrink when they cure and the faster they cure the more they shrink. if you try to cure it too fast it will just warp the peice your working on
Posted By: tazmn23
Date Posted: November 13, 2005 at 8:23 PM
ok, well, I just let it cure overnight, and a little in the morning before i put on a second coat. I have the third coat currently drying right now. Got a question though, How many layers should i put on the base before cutting it to shape and starting with the fleece coat? When i had 2 layers of FB on, it still flexed a little, but now im sure with 3 coats on it shouldnt flex at all. Can I start the fleece tomorrow with a 3 coated base? I doubt the base will flex at all tomorrow, And im also only making the box for one 10" JL w3.
Posted By: mikeva
Date Posted: November 13, 2005 at 9:21 PM
3 layers for a single 10" should be fine.the extra curves that fiberglass boxes normally have reinforce it and give it extra strength.
Posted By: Cougar.Modder
Date Posted: November 19, 2005 at 11:06 PM
I used 4 coats on my sides like this application and seemed to be perfect. But then again I did have issues getting it out of the car too. Make sure you use a good releasing agent. Keep the pics coming.
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Posted By: djrcustom
Date Posted: November 23, 2005 at 2:41 PM
Yeah 3 sounds good, also do the thumb test around if you feel it might be a little to weak (press on it in diff. areas with your thumb and see if it bends) if it holds up good then wrap it and finish it up also make sure to post more pics! 
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