E46 BMW Social Directory E46 FAQ 3-Series Discussion Forums BMW Photo Gallery BMW 3-Series Technical Information E46 Fanatics - The Ultimate BMW Resource BMW Vendors General E46 Forum The Tire Rack's Tire Wheel Forum Forced Induction Forum The Off-Topic The E46 BMW Showroom For Sale, For Trade or Wanting to Buy

Welcome to the E46Fanatics forums. E46Fanatics is the premiere website for BMW 3 series owners around the world with interactive forums, a geographical enthusiast directory, photo galleries, and technical information for BMW enthusiasts.

You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact contact us.

Go Back   E46Fanatics > Tuning & Tech > Bavarian Soundwerks' Mobile Electronics Forum

Bavarian Soundwerks' Mobile Electronics Forum
Have all your A/V and electronics questions answered here. Ipods, A/V, Radar Detectors Oh My!
Sponsored by Bavarian Soundwerks

Reply
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 11-28-2004, 11:21 AM   #1
bigjae1976
Registered User
 
bigjae1976's Avatar
 
Join Date: Dec 2003
Location: Earth
Posts: 11,420
My Ride: A car
Send a message via MSN to bigjae1976
Quick question about fiberglass, primer and bondo

I'm doing a small fiberglass enclosure for my Hyundai. Everything has gone well exept for the sanding part. My goal it to paint the enclosure. I did the bondo coat, sanded, bondo, sand, bondo and sand. Just started priming it this morning when I realized there are a couple of pin holes that the primer won't fill where I sanded down to a small air bubble in the fiberglass.

Can I put bondo on top of primer? Or do I have to sand the primer off?

I am worried about the fiberglass getting too thin in that area.
bigjae1976 is offline   Reply With Quote
Ads by Google

Guests, get your FREE E46Fanatics.com membership to remove this ad.
Old 11-28-2004, 12:26 PM   #2
PLAZAMAN
Registered User
 
Join Date: Jan 2003
Location: NYC
Posts: 1,621
My Ride: FourPointEightEyeS
jae, if its too thin.. you can always add another layer around that area
__________________
PLAZAMAN is offline   Reply With Quote
Old 11-28-2004, 01:05 PM   #3
rcurley55
Registered User
 
Join Date: Oct 2002
Location: SF, CA
Posts: 1,620
My Ride: 2001 IR M3 Coupe
Quote:
Originally Posted by bigjae1976
I'm doing a small fiberglass enclosure for my Hyundai. Everything has gone well exept for the sanding part. My goal it to paint the enclosure. I did the bondo coat, sanded, bondo, sand, bondo and sand. Just started priming it this morning when I realized there are a couple of pin holes that the primer won't fill where I sanded down to a small air bubble in the fiberglass.

Can I put bondo on top of primer? Or do I have to sand the primer off?

I am worried about the fiberglass getting too thin in that area.
Step one - don't use bondo brand filler - if you must use bondo brand, use the Ultimate (comes in a blue can) and is far superior to the "pink" stuff....

What you need now is some kind of putty. I use a product called Icing - I forget who makes it, but it's a paintable or pourable filler. Works in the same manner as bondo, only it's thinner and easier to sand. This is always my final setup before paint.

Pin holes are a part of using regular bondo brand. If you have sanded into an air bubble in the glass, then you are going to have to build it up with something better then bondo - I'd you could mix up a milkshake or used some fiberglass reinforced filler - like dynaglas, or you could mix up some bondo, then add in some fiberglass strands to make it stronger. Too thick of bondo, and it will crack.
__________________
Life's too short not to be M-Powered

rcurley55 is offline   Reply With Quote
Old 11-28-2004, 03:28 PM   #4
bigjae1976
Registered User
 
bigjae1976's Avatar
 
Join Date: Dec 2003
Location: Earth
Posts: 11,420
My Ride: A car
Send a message via MSN to bigjae1976
Thanks...I guess I'll just live with it. Not a big deal since this is going into my Hyundai. Just seeing how painting would work out but I can always carpet it.
bigjae1976 is offline   Reply With Quote
Old 11-29-2004, 04:20 AM   #5
kwang125
Registered User
 
Join Date: Jan 2004
Location: Vancouver
Posts: 454
My Ride: 323i
i've heard mixing bondo with some resin can fill up those pin-holes. i've never tried it though. i guess you would have to make it somewhat watery.
kwang125 is offline   Reply With Quote
Old 11-29-2004, 07:56 AM   #6
bigjae1976
Registered User
 
bigjae1976's Avatar
 
Join Date: Dec 2003
Location: Earth
Posts: 11,420
My Ride: A car
Send a message via MSN to bigjae1976
Painting fiberglass is a real pain in the ass. I guess if I want it to look perfect, I'll take it to a body shop next time.

Still, it looks decent enough for my Hyundai.
bigjae1976 is offline   Reply With Quote
Old 11-29-2004, 09:42 AM   #7
rcurley55
Registered User
 
Join Date: Oct 2002
Location: SF, CA
Posts: 1,620
My Ride: 2001 IR M3 Coupe
it depends on what part of the glass you are painting. If you are using fleece or grille cloth to stretch over a frame, then re-inforce that with glass, then it's very easy...just apply your reinforcement to the back side of the part.

If you want to lay glass down, then paint over that directly - that will take a lot of time....
__________________
Life's too short not to be M-Powered

rcurley55 is offline   Reply With Quote
Old 11-29-2004, 11:45 AM   #8
bigjae1976
Registered User
 
bigjae1976's Avatar
 
Join Date: Dec 2003
Location: Earth
Posts: 11,420
My Ride: A car
Send a message via MSN to bigjae1976
Its over fleece. The problem is my inexperience but I am getting better.
bigjae1976 is offline   Reply With Quote
Old 11-29-2004, 01:02 PM   #9
rcurley55
Registered User
 
Join Date: Oct 2002
Location: SF, CA
Posts: 1,620
My Ride: 2001 IR M3 Coupe
well, in that case, I'd start by knocking down most of the bumps in the fleece with some low grit paper, then bondo the piece, then sand (always use a block), then guide coat it and see where you are from there.

working with bondo is not easy by any stretch of the imagination....
__________________
Life's too short not to be M-Powered

rcurley55 is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not 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 On
Censor is ON





All times are GMT -5. The time now is 07:42 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
(c) 1999 - 2011 performanceIX Inc - privacy policy - terms of use