Author Topic: Glueing ABS to styrene  (Read 1365 times)

0 Members and 1 Guest are viewing this topic.

craigolio1

  • Crew
  • *
  • Posts: 1469
  • Respect: +260
Glueing ABS to styrene
« on: March 14, 2014, 10:42:28 PM »
0
Plastruct ABS to Evergreen styrene. Can I use my Testors liquid or possible the ABS cement I have in my plumbing kit (which contains MEK)?  I also have CA ( would rather a chemical bond/ weld) and epoxy (takes too long and is messy). Plastruct lists a couple of their own brand that would work but the LHS is out. If they truly are the best though I will wait.

Thanks.

Craig.

Philip H

  • Crew
  • *
  • Posts: 7338
  • Gender: Male
  • Respect: +447
    • Layout Progress Blog
Re: Glueing ABS to styrene
« Reply #1 on: March 14, 2014, 11:59:22 PM »
0
The ABS and CA should do you - my experience is the Testors stuff only works on like or similar plastics.
Philip H.
Chief Everything Officer
Baton Rouge Southern RR - Mount Rainier Division.

"Yes there are somethings that are "off;" but hey, so what." ~ Wyatt

"I'm trying to have less cranial rectal inversion with this." - Ed K.

"There's more to MRR life than the Wheezy & Nowheresville." C855B

Greyryder

  • Crew
  • *
  • Posts: 81
  • Respect: 0
Re: Glueing ABS to styrene
« Reply #2 on: March 15, 2014, 12:05:36 AM »
0
I've used the Testors to glue styrene to ABS before, it seemed to take a lot to dissolve the ABS enough to get a good "weld." That said, the ABS I was gluing to was toy plastic. Never tried it with Plastruct's ABS. I believe Tenax is supposed to work on both plastics, but I've never used it.

craigolio1

  • Crew
  • *
  • Posts: 1469
  • Respect: +260
Re: Glueing ABS to styrene
« Reply #3 on: March 15, 2014, 12:09:21 AM »
0
The LHS is out of Tenax as well. Shioot.

nkalanaga

  • Crew
  • *
  • Posts: 6393
  • Respect: +257
Re: Glueing ABS to styrene
« Reply #4 on: March 15, 2014, 12:44:27 AM »
0
My "local" hobby shop has been out of both Ambroid Pro-Weld and Tenax for over three years now.  They've tried ordering from their distributors (multiple), while I watched, and nobody seems to have them.  Are either of them still being made? 
N Kalanaga
Be well

bman

  • Crew
  • *
  • Posts: 500
  • Gender: Male
  • I gotta have more Conrail!
  • Respect: +60
Re: Glueing ABS to styrene
« Reply #5 on: March 15, 2014, 12:59:43 AM »
0
The shop here in town has Tennax.  It seems to be available every now and then.  I know there's an explanation but I don't know it.

jimmo

  • Crew
  • *
  • Posts: 902
  • Gender: Male
  • Representing Willmodels
  • Respect: +6
    • Willmodels
Re: Glueing ABS to styrene
« Reply #6 on: March 15, 2014, 01:02:42 AM »
0
Plastruct makes Bondene especially for bonding both styrene and ABS. The label states "Evaporative formula for bonding styrene to styrene, ABS to ABS and other alike plastic applications." I see no reason why it wouldn't bond styrene to ABS.

Starting with a small rectangle of 3/16 inch grey Plastruct ABS, then took a piece of 1/2 inch x 1 inch x .080 thick Evergreen styrene and attached it on end to the flat surface of the ABS. Using the Bondene it made a pretty solid bond. I don't know what your project is but this bonds as well or better than any styrene to styrene solvent weld.

I also did the same test on using a high shear strength CA to bond styrene to ABS. After letting each set I performed a stress test by pushing on the upright styrene piece until it broke it's bond. Personally, I couldn't tell the difference between the two.
James R. Will

peteski

  • Crew
  • *
  • Posts: 20577
  • Gender: Male
  • Respect: +1827
    • Coming (not so) soon...
Re: Glueing ABS to styrene
« Reply #7 on: March 15, 2014, 04:23:03 AM »
0
ABS is a type of styrene (that is what the last S stands for).  However there are different grades (slightly different chemistries) of both (poly)styrene and ABS.  Solvent-based cements for each type will usually also dissolve the other type. But since the chemistries are slightly different, the bond will not be as strong as when "welding" pieces made from identical material.

The Plastruct Bondene is not pure solvent cement (put some out on a piece of glass and let it evaporate). The film left behind is some sort of additional bonding agent.

For dissimilar materials like those I prefer using CA glue.
--- Peteski de Snarkski
--- Honorary Resident Curmudgeon

John

  • Administrator
  • Crew
  • *****
  • Posts: 10719
  • Gender: Male
  • Respect: +446
Re: Glueing ABS to styrene
« Reply #8 on: March 15, 2014, 08:29:15 AM »
0
The LHS is out of Tenax as well. Shioot.

MB Klein still had Tenax a few weeks ago

DKS

  • The Pitt
  • Crew
  • *
  • Posts: 11162
  • Your choice for ANAL...
  • Respect: +1736
    • DKS Home
Re: Glueing ABS to styrene
« Reply #9 on: March 15, 2014, 08:36:06 AM »
0
Methylene chloride should produce a decent bond. You can get it through chemical suppliers on eBay.
"Life's a piece of sh!t when you look at it."
                                       —Monty Python

craigolio1

  • Crew
  • *
  • Posts: 1469
  • Respect: +260
Re: Glueing ABS to styrene
« Reply #10 on: March 15, 2014, 10:28:59 AM »
0
Thanks everyone. 

It's for a large bridge.  I'm just planning ahead.  I'll likely be using Plastruct ABS I beams across the top , for the track to sit on, and they will be bonded to styrene structures beneath.   I'm in Canada so shipping chemicals from the US doesn't really happen.

I'll take Peteski's advise and just use CA unless the Bondene shows up at my LHS.

Craig

peteski

  • Crew
  • *
  • Posts: 20577
  • Gender: Male
  • Respect: +1827
    • Coming (not so) soon...
Re: Glueing ABS to styrene
« Reply #11 on: March 15, 2014, 02:52:37 PM »
0

I'll take Peteski's advise and just use CA unless the Bondene shows up at my LHS.

Craig

I might be a bit anal, but I also wipe each piece to be glued with naphtha (to clean the joint areas).  Besides degreasing, naphtha seems to do something to the styrene surface to allow it to take glue very well.
--- Peteski de Snarkski
--- Honorary Resident Curmudgeon

C855B

  • Crew
  • *
  • Posts: 7642
  • Respect: +841
Re: Glueing ABS to styrene
« Reply #12 on: March 15, 2014, 05:03:30 PM »
0
I might be a bit anal, but I also wipe each piece to be glued with naphtha (to clean the joint areas).  Besides degreasing, naphtha seems to do something to the styrene surface to allow it to take glue very well.

Hmm. Probably very similar action to purple primer for PVC.
...mike

http://www.gibboncozadandwestern.com

We don't make mistakes, we have happy accidents. We just don't tell anybody. -Bob Ross

craigolio1

  • Crew
  • *
  • Posts: 1469
  • Respect: +260
Re: Glueing ABS to styrene
« Reply #13 on: March 15, 2014, 06:48:35 PM »
0
I might be a bit anal, but I also wipe each piece to be glued with naphtha (to clean the joint areas).  Besides degreasing, naphtha seems to do something to the styrene surface to allow it to take glue very well.

Good idea.

sirenwerks

  • Crew
  • *
  • Posts: 5211
  • Gender: Male
  • Respect: +147
Re: Glueing ABS to styrene
« Reply #14 on: March 24, 2014, 04:37:57 PM »
0
I might be a bit anal, but I also wipe each piece to be glued with naphtha (to clean the joint areas).  Besides degreasing, naphtha seems to do something to the styrene surface to allow it to take glue very well.

What, like Coleman camp fuel?
Now seeking Pacific NW N scalers to create a Modutrak-style modular club featuring NP's shared mainline between Seattle and Portland. PM me if interested.