PDA

View Full Version : The best epoxy to mold fiberglass to steel?



Gregersen46
06-03-2012, 09:38 AM
What the best epoxy to use to mold fiberglass to my steel hood?

astroracer
06-04-2012, 02:18 AM
Doesn't matter what you use, it will never last. Check out this thread, pretty much covers the bases.
https://www.pro-touring.com/showthread.php?89485-Bonding-fiberglass-to-steel&highlight=fiberglass
I have used 3M's Structural Adhesive called Araldite to bond 'glass scoops to steel. Worked well for a few years but the seam will start to show after a fashion. Nothing you can do about it. Different expansion rates causes it.
Mark

68vert
06-04-2012, 04:13 AM
Add Content

elitecustombody
06-04-2012, 07:38 AM
Marine Tex gray or white works amazing.The trick is to have at least 1/4 to 3/8" thickness right at the seam. I have never seen it fail on me.

astroracer
06-04-2012, 07:57 AM
Marine Tex gray or white works amazing.The trick is to have at least 1/4 to 3/8" thickness right at the seam. I have never seen it fail on me.

Any pics? Smoothly blending a scoop to a hood is the trick. 1/4 to 3/8ths of an inch creates quite a high transition line.

elitecustombody
06-04-2012, 11:00 AM
Any pics? Smoothly blending a scoop to a hood is the trick. 1/4 to 3/8ths of an inch creates quite a high transition line.

I may have one pic of fender flares I did on a 99 Tahoe back in 2000,I lost most of my pics when my PC caught a virus. All I can tell you that this stuff works and I was amazed how well it held up even to impact. One of these days I will chase down that truck and take a picture,because it's still riding around town .

elitecustombody
06-04-2012, 09:02 PM
Here you go.

https://static1.pt-content.com/images/noimg.gif

I also have a hood off my 02 Escalade that I cut the stock skin and bonded the skin off 06-up body style Avalanche/Tahoe hood with Marine Tex about 6+ years ago

jlcustomz
06-05-2012, 08:49 PM
The way the fender flare in the above pic intersects the vehicle helps hide the problem of different expansion rates& ghostshadowing as opposed to a seamless transition with no line. A hood scoop done like this without blending may not be the preferred look, but it should stand the test of time. Of course a hood gets more heat cycling than a fender.
I used marinetex myself about 14 years ago to fill in holes from moving a mirror in a door panel {before I owned a mig & tig welder). This ,of course is not the correct way to fill holes. Yes it has ghostshadows, but no it has NOT failed.
By the way,I,ve worked near Stephen's shop for years, they do some top quality work there.

Gregersen46
06-16-2012, 11:08 PM
Thanks guys