Print Page | Close Window

Polyurethan/Fiberglass 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=57667
Printed Date: May 14, 2024 at 9:38 AM


Topic: Polyurethan/Fiberglass question

Posted By: turtleturtle
Subject: Polyurethan/Fiberglass question
Date Posted: June 14, 2005 at 9:56 AM

I have a 1997 Dodge Neon Polyurethan Front Body Kit.  I heard that fiberglass does not stick the polyurethan.  Is that correct?  I want to know because I want to make a custom Xenon Front Body Kit by putting Fiberglass on the inside of the polyurethan kit, and using it as a mold.  Of course I will have to make some custom crap to make it fit, but can it be done this way?  Thanks for the info.

-------------
"...am I not Turtley enough for the Turtle Club?"



Replies:

Posted By: modena0
Date Posted: June 14, 2005 at 10:09 AM

i dont know if i am understanding you 100%, but if i am, then you dont want it to stick. if you are trying to make a mold with the kit you have, than i would imagine you want to be able to take it off of the polyurethane part so you can go more layups on top for the correct shape and size. do you plan on leaving the polyurethane kit as part of the new fabrication?





Posted By: turtleturtle
Date Posted: June 14, 2005 at 10:19 AM

You kinda understood me.  I am using the Polyurethan as the mold itself.  I am putting fiberglass inside it and removing the polyurethan kit and using the fiberglass.  Only the fiberglass.  The Xenon kit almost fits the Avenger, but it is short on the wheel wells, is rounded for the Neon headlights, and it too tall.  I also have to put the top lip on it.  The Avenger does not have that big gap on the top bumper like the Neon does, and will have to make something there to fill in the gap and make it wrap correctly around my headlights.

I just want to know, has this been done, and how hard is it?



-------------
"...am I not Turtley enough for the Turtle Club?"




Posted By: oonikfraleyoo
Date Posted: June 14, 2005 at 10:41 AM
You absolutly must use some sort of mold release. DO NOT just start laying fiberglass inside your bumper and expect it to come out effortlessly. It would most likly not be a pretty picture.



-------------
Nik
Jeeputer Progress
[|||||||||||-] 90%
Check it out.




Posted By: turtleturtle
Date Posted: June 14, 2005 at 10:54 AM
What is a good mold release?

-------------
"...am I not Turtley enough for the Turtle Club?"




Posted By: turtleturtle
Date Posted: June 14, 2005 at 12:05 PM
What is a good mold release?


-------------
"...am I not Turtley enough for the Turtle Club?"




Posted By: modena0
Date Posted: June 14, 2005 at 12:09 PM
yeah, i figured a mold release was given assuming it was going to be removed.




Posted By: turtleturtle
Date Posted: June 14, 2005 at 12:16 PM
Yeah, but what kinda of mold release?????????  Brand, where to buy....

-------------
"...am I not Turtley enough for the Turtle Club?"




Posted By: oonikfraleyoo
Date Posted: June 14, 2005 at 12:26 PM
Aluminum foil, wax, anything that will prevent your FG from sticking to your bumper.

-------------
Nik
Jeeputer Progress
[|||||||||||-] 90%
Check it out.




Posted By: modena0
Date Posted: June 14, 2005 at 12:28 PM
only problem with foil is that sometimes pieces get stuck in the resin when it hardens.. wax on aluminum foil tends to work nicely




Posted By: turtleturtle
Date Posted: June 14, 2005 at 12:29 PM
Thanks, what about PAM, or grease.  Would that work?

-------------
"...am I not Turtley enough for the Turtle Club?"




Posted By: turtleturtle
Date Posted: June 14, 2005 at 12:30 PM
I was hoping could spray on, to make life easier.

-------------
"...am I not Turtley enough for the Turtle Club?"




Posted By: gjwr
Date Posted: June 14, 2005 at 1:49 PM

Be painfully aware that the Methyl-Ethyl Keytone Peroxide (or MEK) catalyst used in FG is a very hungry and insipid substance. It will attack and melt various other polymers without much warning and once it starts it likes to keep going. try using a styrofoam cup to mix in one day... just make sure you have something else to put it in afterwards. I believe polyethylene and poly propylene are safe (standard materials used for making buckets and jugs) polystyrene is not. I dont remember now all the ones that eat and dont, but these stick to memory.

As far as release agent, Wax on Wax off... releaseall #2 works well, find a composite materials wholeseller in your area and they will have it... works the best of anything I have used.

just two cents from a former apprentice glasser who got smart and got out before the chemicals ate him





Posted By: mi_what
Date Posted: June 14, 2005 at 3:08 PM
Sounds like the chemicals did eat you...I have never known anybody not holding a beaker that can spout the chemical names of buckets...LOL just kidding. Good information though.

First off I wouldn't attempt to re-make the front body kit...What I would do is cut off what ever pieces don't fit (headlights, fenders,etc) that way you still have two things...a way to attach it to your car, and the flexibility of polywhatever it was.

Next, tape off the sections of your car that you want to add...your headlights, double tape them off, add wax, resin, then glass to re-create your headlights, once that is dried, take those off and hot glue them in thier spot on your body kit...remember, measure twice cut once.

When all of that is done you can secure the body kit onto your car, mask off the front of your car, wrap the front in fleece hot gluing it down to anchor it until it conforms to your desired shape, add resin to JUST THE BUMPER AND EMPTY SPACE THAT YOU NEED TO RE-CREATE...don't go resining your CF hood and all of that fancy jazz.

After that dries, unbolt the bumper, start glassing your little heart away, then start bondo-ing your little heart away, ten you can sand all of your worries away, then when it is all said and done...you'll take a step back, look at your project and wonder why you didn't spend the 350.00 to buy a brand new one for your car.

Good luck man, your in for a hell of an experience...and it ain't gonna be done by Heat Wave.




Posted By: us_test
Date Posted: June 15, 2005 at 12:04 PM
turtleturtle - some of the PROs use McGuiar number 8 wax as a mol releaser.

-------------
(1) Kenwood Excelon Head Unit KDC-X589 (24 bit Burr Brown DAC, 3 X 4 volt RCA).
(1) RF Punch 250A2 - running the components.
(1) Hifonics 6.5" Atlas Components (18db crossovers).




Posted By: turtleturtle
Date Posted: June 15, 2005 at 12:23 PM
Thanks for the info everyone.  Will try McGuiar, sounds easy to use.

-------------
"...am I not Turtley enough for the Turtle Club?"




Posted By: abovestock
Date Posted: June 17, 2005 at 3:08 AM
uscomposites.com    fiberglast.com    good web sights to get spray release from as well as other supplies.





Print Page | Close Window