Making Fiberglass Parts - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Body - Exterior
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 09-06-2002, 11:37 AM
Maverick's Avatar
Member
 
Last photo:
Join Date: Apr 2002
Location: Little Rock, Ar
Age: 43
Posts: 339
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Post Making Fiberglass Parts

I have a '49 Chevy truck. The Hood is in pretty bad shape and I cant seem to find a good one new or used. Its strange everyone makes just about every body part for it except the hood <img src="graemlins/pain.gif" border="0" alt="[pain]" /> I have seen a couple articles lately on molding foam and layering fiber glass on it to make a part. I wonder if there could be a way I could use my old hood to make a mold to make a fiber glass hood. I know I could buy one that lifts off from autobodysource but whats the fun in that? I would like to do it and be able to incorporate the original bracing so I can use the hood hinges. Am I crazy or can this be done?? Any one have experience?? Tricks?? Tips??

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 09-06-2002, 12:39 PM
willys36@aol.com's Avatar
Hotrodders.com Moderator
 
Last wiki edit: How to rebuild a Rochester Quadrajet 4MV carbureto...
Last journal entry: How to change auto shift timing on 200R4
Last photo:
Join Date: May 2002
Location: Bakersfield
Posts: 8,384
Wiki Edits: 21

Thanks: 1
Thanked 4 Times in 4 Posts
Post

It can be done and is fairly straight forward for a person with reasonable mechanical aptitude. Doesn't require any specialized tools. I made the hood on the '36 Willys in my post picture (see left) from a fiberglass mold I made of the original steel hood. Contact FiberLay (www.fiberlay.com) for all the materials. They also sell a book "Fiberglass & Composite Materials" by Forbes Aird (how's that for a name?!) That has a fairly good discussion of making molds and parts. there are a lot of suppliers out there but they specialize in mail order and a complete list of materials and are very helpful with tech advice to the novice.

I'm guessing for a part that size you will spend about $500 - $600 for materials for the mold and a part.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 09-06-2002, 01:02 PM
Maverick's Avatar
Member
 
Last photo:
Join Date: Apr 2002
Location: Little Rock, Ar
Age: 43
Posts: 339
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Post

Thanks that was a good site. Guess Ill order that ook and video. I do better with videos. HA. That one you did looks great! At least I know it can be done.

Can you fiber glass in metal parts such as were you mount the hinge brackets and hood latches. I assume you must have done something to have it tilt.

Thanks again!
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 09-06-2002, 02:49 PM
willys36@aol.com's Avatar
Hotrodders.com Moderator
 
Last wiki edit: How to rebuild a Rochester Quadrajet 4MV carbureto...
Last journal entry: How to change auto shift timing on 200R4
Last photo:
Join Date: May 2002
Location: Bakersfield
Posts: 8,384
Wiki Edits: 21

Thanks: 1
Thanked 4 Times in 4 Posts
Post

Absolutely. Just clean them to bare metal where they contact the 'glass, drill a few holse for the resin to anchor through and anchor them in place with a couple layers of mat and resin. I often "glue" the metal parts in place with some bondo before glassing them in permanently.

I have a '53 Chevy pickup and the hinge bracket that spans the rear edge of the hood looks like it was made to glass into a plastic hood. Ditto for the latch bracket in front, although you could make a much lighter and smaller one than the GM version and us the ubiquitous VW hood latch.

I think they only list one video in their catalog and it covers making cast resin parts, not fiberglass laminate construction. I don't think you will be happy with it for the purpose of making your hood.

[ September 06, 2002: Message edited by: willys36@aol.com ]</p>
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 09-07-2002, 01:50 AM
deuce_454's Avatar
Member
 
Last photo:
Join Date: May 2002
Location: Copenhagen, Denmark
Age: 39
Posts: 1,000
Wiki Edits: 0

Thanks: 0
Thanked 1 Time in 1 Post
Post

there is a simpler way to make the brackets fit, after you construct your mold and and you are done with the layup, just lay the reinforcements (sandblasted and "paintet" with wet resin) from the old hood wet with resin in the wet resin of the layup and do a couple of layers of low weight rowing on top of it , this will give you the regidity you need for a hood that doesnt flimpse arround when open, AND all the hinges and brackets will be in the correct location

remember to save the mold so you can make a buck dooing more hoods once the word gets arround that "this guy can make a new hood from the old rusted junk".. :-)
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 09-12-2002, 10:41 AM
Registered User
 
Last photo:
Join Date: Sep 2002
Location: pennsylvania
Posts: 4
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Post

Maverick,
I don't know where you are but I have an extra hood here in central PA you might be interested in if you're building a daily driver and interested in keeping costs down. You also might consider going to Carlisle and/or Hershey in October. Someone there would likely have a used hood as well.
Soilprof
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 09-12-2002, 10:45 AM
Maverick's Avatar
Member
 
Last photo:
Join Date: Apr 2002
Location: Little Rock, Ar
Age: 43
Posts: 339
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Post

Iam a LOOOOOONNG ways from the North East. Little Rock,Arkansas to be exact. But, Thanks any way.

Dan
Reply With Quote Quick reply to this message
  #8 (permalink)  
Old 09-14-2002, 05:58 PM
41willys's Avatar
Blowin' it
 
Last wiki edit: Choosing a trailer
Last journal entry: Running again...
Last photo:
Join Date: Aug 2002
Location: Katy, Texas
Age: 39
Posts: 417
Wiki Edits: 11

Thanks: 0
Thanked 0 Times in 0 Posts
Lightbulb

I am an "advanced composite technician" on helicopters. willys36 is correct, but when you go and do your lay-ups, go with weave direction in 45 degree angles to each other. This will add tremendous strength.

Also, if you do not get all of the air pockets or small bubbles out from between each layer, as the engine heats up or the sun heats it up, the bubbles will expand and cause what is known as delamination, not good or fun to repair...

That lay-up is known as a quasi-isotropic lay-up, that is not a joke, it is real.

If you need any assistance, shoot me an e-mail, and I can walk you through it. I went to the Air Force Advanced Composite school. Good Luck
Reply With Quote Quick reply to this message
  #9 (permalink)  
Old 09-27-2002, 05:02 PM
Member
 
Join Date: Aug 2002
Posts: 49
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Post

I guess I should start a new thread, but my question is on the same topic so I'll take a chance here...

I have been thinking of trying some 'glass work for a custom console and I got some advice from a guy but he didn't really know that much about this kind of work from the sound of it. He works with 'glass, but with a chopper gun spraying moulds.

someone had told me that you can use the foam they use for flower arrangements (dark green and easily shaped, not sure what it's real name is though) to carve a mould and then just lay the 'glass sheet and/or mat in that mold (and resin, etc). has anyone tried using that stuff for a mould? any suggestions for something else that is readily available and not too expensive?

I have also seen examples where the person made a wood frame, covered that with a tightly-pulled t-shirt and laid the 'glass over that. How well does that work? It looked incredible, but how long would something like that hold up?

any help is really appreciated before i go and blow all this money to find out I've been BS'ed or I misunderstood something.
Reply With Quote Quick reply to this message
  #10 (permalink)  
Old 09-27-2002, 06:31 PM
Halloweenking's Avatar
Fantastically cannibalistic!
 
Last photo:
Join Date: Mar 2002
Location: Spooksville
Posts: 1,353
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Post

Mist check this <a href="http://www.termpro.com/cgi-bin/ubb/ultimatebb.cgi?ubb=get_topic&f=32&t=000571" target="_blank">out.</a> Thats probably the example you've seen. This way works just fine and if you make a thick enough layering of 'glass cloth it will probably last longer than you will. You could also make a male mold from styrafoam and coat it with several layers of ordinary house primer and layer the cloth on that and after its hardened scoup out the styrafoam from the bottom and discard. Depending on how skilled you are I usually make mine from sheetmetal, steel or aluminum, but its much harder and time consuming. Although if you need more insite on any of this let me know through e-maill or PM, be glad to help.

HK
Reply With Quote Quick reply to this message
  #11 (permalink)  
Old 09-28-2002, 05:25 PM
Member
 
Join Date: Aug 2002
Posts: 49
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Post

yup, that's the one I had seen, but I lost then link. Thanks a lot. I have never done anything like this so i won't be trying to do it with sheetmetal yet. I'm thinking about trying to take night classes at the local VoTech for Auto Body so maybe after that I can take that kind of step. For now I'll stick to the 'foam I think. Is it the flower arrangement stuff or is it a different kind of 'foam?
Reply With Quote Quick reply to this message
  #12 (permalink)  
Old 09-28-2002, 07:25 PM
Halloweenking's Avatar
Fantastically cannibalistic!
 
Last photo:
Join Date: Mar 2002
Location: Spooksville
Posts: 1,353
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Post

you could use the flower arrangment stuff with lots of house primer or styrafoam like you have in couch cushions and lots of primer. the couch cushion type foam can be easily rounded with a lighter and a spray bottle of water. The fumes are very bad so do it outside if you go that route.

HK
Reply With Quote Quick reply to this message
  #13 (permalink)  
Old 09-28-2002, 07:48 PM
41willys's Avatar
Blowin' it
 
Last wiki edit: Choosing a trailer
Last journal entry: Running again...
Last photo:
Join Date: Aug 2002
Location: Katy, Texas
Age: 39
Posts: 417
Wiki Edits: 11

Thanks: 0
Thanked 0 Times in 0 Posts
Thumbs up

All of these ideas do work, BUT remember to use some sort of release film.

It can be release film (non-porous), porous film, or a water based release agent.

I built a fin, on my Dad's friends top fuel Harley drag bike, it was out of carbon fiber, it took several tries to get the mold correct for it to go on the main fairing. I tried the flower arrangement green foam, it didn't work for me since I used a hot bonder (auto ramp heat/cool stages + 22 - 25 lbs. vacuum), crushed like nothing. It will work otherwise. Make sure your equipment is dust free and your mold is clean and dust free.

Jason
Reply With Quote Quick reply to this message
  #14 (permalink)  
Old 10-02-2002, 12:05 PM
Maverick's Avatar
Member
 
Last photo:
Join Date: Apr 2002
Location: Little Rock, Ar
Age: 43
Posts: 339
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Post

For those who are interested Street Rodder Magazine is doing a run on making fiber glass parts. Last month was part one the intro. this month part two is the tools of the trade. Just thought I would pass it along!


<img src="graemlins/mwink.gif" border="0" alt="[mwink]" />
Reply With Quote Quick reply to this message
  #15 (permalink)  
Old 10-02-2002, 06:56 PM
New Member
 
Join Date: Sep 2002
Location: utah
Posts: 10
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Post

I dont know if this has been posted yet but it is a nice walk-through on make glass parts
http://www.hotrod.com/editorial/arti...=text&id=60478
Reply With Quote Quick reply to this message

Recent Body - Exterior posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
"Basics of Basics" Trial fitting parts MARTINSR Body - Exterior 4 02-23-2008 09:33 AM
Boy are parts guys stupid, or are they? MARTINSR Hotrodders' Lounge 107 04-17-2007 11:26 AM
making a fiberglass spoiler? project66 Body - Exterior 10 08-15-2005 02:34 PM
Fiberglass parts mr.Pinto Body - Exterior 2 08-15-2004 08:44 PM
Where to buy fiberglass body parts? newchevyman Body - Exterior 4 11-11-2003 05:36 PM


All times are GMT -6. The time now is 10:45 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.