MDF Screw Up question?
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=43622
Printed Date: July 16, 2025 at 8:31 PM
Topic: MDF Screw Up question?
Posted By: BoominRolla
Subject: MDF Screw Up question?
Date Posted: November 23, 2004 at 7:20 AM
Ok, I'm kinda embarrassed to ask this... hahaha But when I was building my box for my next install into my car, I needed to make 2 angle cuts greater than 45 degrees. Our table saw only goes up to 45 degrees... So I matched up some lines and did it free hand with a saw. Well needless to say it came out close but theres still a goot 1/8" gap in some spots!!!!!!!!! Can I just make up a mixture of sawdust and wood glue to make a wood filler? I know it won't be "AS STRONG" but in recent experiences with elmers wood glue, the wood broke in other places than the glue joint. Which leads me to believe that the wood/glue joints are much stronger. I don't wanna seem like a "hack" but that was really the only way I could think of doing it... The box will have a lexan window in it... so you will be able to see inside but the location is out of view... I will also be painting the inside hite to reflect light...
-------------
Replies:
Posted By: realitycheck
Date Posted: November 23, 2004 at 8:19 AM
Man I would think that would fine. That or go get you a tube of liquid nail, thats what I just put my box together with and I took a part that I cut out that was held together by nothing but liquid nail. I smashed it on the concrete trying to break it apart and all the wood broke except the part that had liquid nail on it. So I know that it is strong as crap man. But really I think either would work.
Posted By: drsnoze
Date Posted: November 23, 2004 at 10:42 AM
I believe that you can just us durglass which is a fiberglass reinforced body filler
Posted By: realitycheck
Date Posted: November 23, 2004 at 12:05 PM
Yeah I forgot about that too, I just used that for my box, and its really strong.
-------------
Learning the trade one fiberglass creation at a time!
Posted By: bomex_eclipse
Date Posted: November 23, 2004 at 1:48 PM
I Personly would not use elmers glue i would do like realitycheck said to do, use liquid nail that is the strongest glue that i know other than Gorilla Glue They say that it is the toughest glue on the planet. I do some wood work from time to time and that is the only wood glue that i use. You can buy it at lowe's or home depot. ------------- If You Can Imagine It Glass It!
Posted By: D'Ecosse
Date Posted: November 23, 2004 at 2:04 PM
BoominRolla wrote:
..... I needed to make 2 angle cuts greater than 45 degrees. Our table saw only goes up to 45 degrees...
Set your saw to (90-desired angle) then run your material through vertcially against the fence instead of flat on the table. Clamp a scrap piece of board onto your metal fence first to both protect it & to give you improved stability (being taller)
Posted By: BoominRolla
Date Posted: November 23, 2004 at 3:50 PM
I must have looked at that table saw for 20 mins trying to figure out something like that... Set your saw to (90-desired angle) then run your material through vertcially against the fence instead of flat on the table. Clamp a scrap piece of board onto your metal fence first to both protect it & to give you improved stability (being taller) ANYWAYS... Thanks for the tip!!! Now I can probably use that technique to make the cuts almost perfect. Then join those together with liquid nails... -------------
Posted By: D'Ecosse
Date Posted: November 24, 2004 at 12:59 AM
BoominRolla wrote:
ANYWAYS... Thanks for the tip!!! Now I can probably use that technique to make the cuts almost perfect. Then join those together with liquid nails......
Cheers Bro! One more tip for you - try Gorilla Glue - great stuff on MDF! https://www.gorillaglue.com/gGlue.html
Posted By: D'Ecosse
Date Posted: November 24, 2004 at 1:01 AM
p.s. (can't edit!) Follow the instructions - dampen the surface with a wet sponge first. You can find it at Home Depot.
Posted By: D'Ecosse
Date Posted: November 24, 2004 at 1:04 AM
p.p.s Use a finger board to keep the work-piece firmly against the fence - it's much tougher (almost impossible!) with a vertical piece to keep it tight without one.
Posted By: BoominRolla
Date Posted: November 24, 2004 at 8:31 AM
I have used gorilla glue before and found that it tends to foam up alot... how do you keep this down or is it just gonna happen? The box will be ported... You will also be able to see the inside of the box through a lexan window...
-------------
Posted By: D'Ecosse
Date Posted: November 24, 2004 at 8:54 AM
Yes, it does foam quite a bit unfortunately - expands 3-4 X! Don't be too overly generous with how much you put on - it's not like a contact adhesive like the liquid nails or Elmers. Make sure you have coverage across the joint but only minimal to acheive that. You can usually keep up with it as it is working - use a scraper and it turn keep that & the piece clean with paint thinner or suitable solvent while it is still not fully cured. It will sand off when it's cured, but the less work you have to do there, the better obviously! I just think you'll get a better bond with it, especially if you are not using biscuits or something to re-inforce the joint.
|