S2000 Under The Hood S2000 Technical and Mechanical discussions.

Need advice on gluing back roll hoop plastic

Thread Tools
 
Old 06-01-2010, 09:26 AM
  #1  
DJT
Registered User
Thread Starter
 
DJT's Avatar
 
Join Date: Dec 2009
Posts: 158
Likes: 0
Received 0 Likes on 0 Posts
Default Need advice on gluing back roll hoop plastic

I've heard from some that it's really not possible to re-glue the roll hoop garnish. Sadly, I don't have much choice. My car came with it already snapped open. At least one person reported that he had good luck with black silicone adhesive.

My garnish is totally separated (from the top all the way down to the sides). The sides near the convertible top mechanism are particularly hard to squeeze back together.

Yesterday I spent quite a bit of time prepping the surface and aligning a series of bar clamps so that I could (in theory) glue the sucker back. I decided to go with a general purpose polyurethane adhesive since I've had so much luck with it in the past for other projects.

So I glued, and clamped, and waited. Got up this morning all excited to see the results.

Crap. Absolute crap. Not only did the adhesive not hold. It looks horrible. So much so that I had to run a strip of black electrical tape over the seam just so I don't have to look at the messy glue. Thankfully I only did one side.

So now I'm back to the drawing board. I'm hoping someone can give me some solid advice. I doubt that black silicone will work for my application as it has less holding power than the poly adhesive I used. Plus, like I said, the roll hoop plastic seam is broken all the way from end to end (from the side on the top center tray to the side near the convertible top frame). The side nearest the latter requires considerable clamp pressure to squeeze back ... so I really doubt the silicone would work there.

Thinking of trying plastic epoxy. If not that, then maybe something else. I'd rather not spend money on another set of roll hoops (they seem a pain to install).

I am thinking of my own DIY type of S-Pod install, which might help keep the upper hoop portions together, but not the lower parts (with the largest seam gap) near the convertible top frame.

Man, this has totally ruined my day. It sucks when you spend a ton of time on a project and it a) doesn't work b) looks like crap and c) will require even more work to get right.

D
Old 06-01-2010, 01:29 PM
  #2  
Registered User

 
ahrmike's Avatar
 
Join Date: Jul 2008
Posts: 4,531
Likes: 0
Received 0 Likes on 0 Posts
Default

I used quick drying epoxy, the two stage ones. It works...but you have to be careful to not drop it on the rollhoops or it will stay in there.

me:
superglue gel, put a few dots to "hold" it while the epoxy sets.

apply epoxy inside roll hoops

Tie hoops together with tape/string/whatever.

wait 1 day..

it should hold at least for a year. One side broke apart again cuz my seat goes all the way up to it/vibrates it apart, but my passenger side is still good
Old 06-01-2010, 01:45 PM
  #3  

 
Stratocaster's Avatar
 
Join Date: Dec 2001
Posts: 11,397
Likes: 0
Received 19 Likes on 19 Posts
Default

Buy new ones.
Old 06-01-2010, 06:23 PM
  #4  
Registered User

 
mister x's Avatar
 
Join Date: Jun 2006
Location: Honolulu
Posts: 1,798
Likes: 0
Received 4 Likes on 3 Posts
Default

Since adhesives are hit or miss, have you considered mechanically joining the pieces? Maybe a clean rivet job or small hex head button bolts.

Either that or talk yourself into a Mugen roll bar.
Old 05-03-2011, 04:46 PM
  #5  

 
jeallen's Avatar
 
Join Date: Jul 2005
Location: Huntsville, Al
Posts: 2,558
Received 84 Likes on 63 Posts
Default

Update: this failed after about a month. :-(


>>>I tried several plastic glues, all failed. This worked:
Old 05-03-2011, 09:07 PM
  #6  

 
Bugsy's Avatar
 
Join Date: Sep 2003
Location: NY
Posts: 8,446
Received 26 Likes on 19 Posts
Default

The hoops are made of PP (polypropylene).
It takes some special stuff to get a lasting bond after the hotwire fusion is broken.
Do a google search on polypropylene glue or gluing.
Here's a link to a high tech chemical...

http://www.masterbond.com/bssp/bspolye.html
Old 05-04-2011, 07:30 AM
  #7  

 
JohnsS2000's Avatar
 
Join Date: Mar 2007
Location: Tampa
Posts: 5,956
Received 7 Likes on 7 Posts
Default

i have the same issue, stereo install. Good Info !!
Old 08-18-2012, 09:29 PM
  #8  

 
mcsinc's Avatar
 
Join Date: Sep 2011
Location: British Columbia, Canada
Posts: 178
Received 3 Likes on 3 Posts
Default

has anyone tried model cement from Testors?
Old 10-29-2018, 07:11 PM
  #9  

 
HarryD's Avatar
 
Join Date: Oct 2008
Location: San Francisco
Posts: 1,116
Received 49 Likes on 48 Posts
Default

I know I'm bumping an old thread, but I wanted to share some good news. Super glue doesn't work, nor does many of the other stuff, for split roll hoops. Most of these threads cover that.

However, rubber cement works nice and solid (follow the instructions, put it on the inside lip of the hoops, let it haze/dry for a few minutes, then join the hoops. Have a partner hold them together while you tape them tight with painters tape. Let dry for a few days before removing the tape).

Hopefully this will save people from having to drop money on new hoops. Cheers!
Old 10-30-2018, 06:18 AM
  #10  

 
cosmomiller's Avatar
 
Join Date: Aug 2012
Location: Foothills East of Sacramento
Posts: 5,855
Received 1,717 Likes on 1,024 Posts
Default

You can also try this from Amazon. Personally I would clamp the thing together correctly and then attempt to heat "weld" it with a soldering iron.


Amazon Amazon


Quick Reply: Need advice on gluing back roll hoop plastic



All times are GMT -8. The time now is 05:21 AM.