Notices
General Miata Chat A place to talk about anything Miata

Headlight Tab Repair

Old Jan 13, 2011 | 12:42 PM
  #1  
chokeasphyxia's Avatar
Thread Starter
Junior Member
iTrader: (8)
 
Joined: Mar 2007
Posts: 331
Total Cats: 0
From: Sarasota, FL
Default Headlight Tab Repair

Looking for best way to fix NB broken headlight tabs, read about plastic welding, sounds too expensive. I've tried jb weld without much success, read about Lord Fusor line of products seen here:

http://www.autobodytoolmart.com/lord...aspx?pagenum=1

What have you guys used?
Old Jan 13, 2011 | 12:51 PM
  #2  
Preluding's Avatar
Senior Member
iTrader: (10)
 
Joined: Aug 2007
Posts: 1,186
Total Cats: 4
From: Fredericton, NB
Default

Take high heat soldering iron with a crappy tip on it. Slowly solder both pieces together... tada! you just plastic welded yourself.
Old Jan 13, 2011 | 03:22 PM
  #3  
Doppelgänger's Avatar
Elite Member
iTrader: (12)
 
Joined: Sep 2007
Posts: 6,850
Total Cats: 71
From: Charlotte, NC
Default

Buy a bottle of this stuff called "Tanax 7R" at your local hobby story. It's a brush-on plastic weld that will chemically "melt" the plastic back together. The problem is, almost nothing will be as strong as the initial molded plastic.
Old Jan 13, 2011 | 04:18 PM
  #4  
BarbyCar's Avatar
Junior Member
iTrader: (1)
 
Joined: Apr 2007
Posts: 471
Total Cats: 25
From: Toronto, Canada
Default

1- Insert metal pins into one half of the joint leave 1/4" or so sticking out.
2- Mark and drill mating holes in the other half of the join.
3- Use adhesive of choice or soldering iron.
4- ???
5- Profit.
Old Jan 13, 2011 | 05:00 PM
  #5  
olderguy's Avatar
AFM Crusader
iTrader: (19)
 
Joined: Oct 2004
Posts: 4,716
Total Cats: 364
From: Wayne, NJ
Default

Mighty Putty
Old Jan 14, 2011 | 01:30 PM
  #6  
chokeasphyxia's Avatar
Thread Starter
Junior Member
iTrader: (8)
 
Joined: Mar 2007
Posts: 331
Total Cats: 0
From: Sarasota, FL
Default

Take high heat soldering iron with a crappy tip on it. Slowly solder both pieces together...
Soldering iron isn't a bad idea, but'll probably look like hell, I might try it.

"Tanax 7R"
Mighty Putty
Have you guys actually used these products on headlight tabs? One issue I've read is a lot of adhesives don't work well on polypropylene (PP), which is what the housings are made of, wanted someone with first hand experience using one of these products on PP and having it work.
Old Jan 14, 2011 | 01:32 PM
  #7  
chokeasphyxia's Avatar
Thread Starter
Junior Member
iTrader: (8)
 
Joined: Mar 2007
Posts: 331
Total Cats: 0
From: Sarasota, FL
Default

Originally Posted by BarbyCar
1- Insert metal pins into one half of the joint leave 1/4" or so sticking out.
2- Mark and drill mating holes in the other half of the join.
3- Use adhesive of choice or soldering iron.
4- ???
5- Profit.
The tabs are pretty thin, would have to be very small pins, might be worth a try though.
Old Jan 14, 2011 | 02:27 PM
  #8  
olderguy's Avatar
AFM Crusader
iTrader: (19)
 
Joined: Oct 2004
Posts: 4,716
Total Cats: 364
From: Wayne, NJ
Default

I have wrapped Mighty Putty around NB headlight tabs, broken cooling fan arms where they attach to the shroud, and many other places where you can make a full circle around the parts you want to hold together. A little flat black paint afterward helps to hide the repair.
Old Jan 14, 2011 | 03:31 PM
  #9  
Doppelgänger's Avatar
Elite Member
iTrader: (12)
 
Joined: Sep 2007
Posts: 6,850
Total Cats: 71
From: Charlotte, NC
Default

I used Tenax on various plastics, but I can't tell you which ones. I did a tab repair on a NB headlight with JB and was able to hold the entire light up by the tab after I left it untouched for 2 days. Time to go combo and use some plastic weld and then smother the cracks with some kind of 2-part epoxy lol
Old Jan 14, 2011 | 03:37 PM
  #10  
Machismo's Avatar
Senior Member
iTrader: (1)
 
Joined: Jul 2008
Posts: 1,273
Total Cats: 1
From: Granbury, TX.
Default

Epoxy Steel - moldable, sandable, and paintable. Like clay that hardens in 5 minutes.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
bigmackloud
Miata parts for sale/trade
19
Jan 8, 2021 11:24 AM
StratoBlue1109
Miata parts for sale/trade
21
Sep 30, 2018 01:09 PM
zephyrusaurai
Meet and Greet
2
Sep 28, 2015 10:59 PM
DonPlatt
WTB
0
Sep 25, 2015 02:57 AM
DonPlatt
WTB
0
Sep 18, 2015 01:34 PM


Thread Tools
Search this Thread

All times are GMT -4. The time now is 08:45 AM.