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(Topic ID: 95074)

Best Glue for clear plastic ramp cracks?

By boneman91

9 years ago


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Topic Stats

  • 17 posts
  • 10 Pinsiders participating
  • Latest reply 9 years ago by LEE
  • Topic is favorited by 12 Pinsiders

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#1 9 years ago
OP
 
KSA

boneman91

Inactive member

US Fairfax Station, VA

10y 28,150 292 11

I'm restoring my Corvette machine, and it has several cracks in the clear plastic ramps. The pieces are all there, nothing is broken completely off. I'd like to glue up these cracks before a piece does break off. I can actually gently open up the cracked pieces to get some glue on the edges. I'm wondering if anyone has any suggestions besides good ol' epoxy or CA. I'm guessing plastic model glue won't be strong enough. The ramps aren't super visible, but will be seen, so I want to do it as cleanly as possible.

Thanks for any advice.

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#2 9 years ago
 
BIL

dangerwil

Pinside member

US Jacksonville, FL

13y 52,650 143

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#3 9 years ago
 
???

zizzlemeplease

Inactive member

US Alexandria, IN

10y 14,650 836

that Tenax looks like a good candidate, another might be model aircraft finishing resin epoxy, is really thin and light, dries to be pretty clear too. its a VERY slow cure but grabs tight once it gets there.

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#4 9 years ago
 
MJG

cranie

Pinside member

US New Bedford, MA

12y 32,150 268

I only use Ambroid Pro Weld on plastics. Takes just a little for a solid fix.

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#5 9 years ago
 
TAB

terryb

Inactive member

US Banning, CA

11y 90,150 4,795 14

+1 on the ambroid pro weld. It's thinner than other solutions and will seep down into the crack better. It also can be purchased with a nice applicator for controlling flow. If you've never done this before one big caution is to not wipe off any excess glue, it will craze the surface of the plastic. Use the corner of a paper towel and wick off any excess.

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#6 9 years ago
 
DAD

fish1975tx

Pinside member

US Houston, TX

12y 55,050 505 25

Plastic Surgery is a good glue for ramps as well.

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#7 9 years ago
 
MOC

master_of_chaos

Pinside member

DE Überherrn

11y 50,550 500 51

Don't know whether this is available in the US : Technicoll 118. A very thin fluid wich repairs cracks and glues broken ramps within seconds.

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#8 9 years ago
OP
 
KSA

boneman91

Inactive member

US Fairfax Station, VA

10y 28,150 292 11

So I bought the Tenax from my local hobby shop and gave it a try. I can't believe that the Ambroid is any runnier than the Tenax. It ran like water. Seems to be holding well. Was about 5 bucks, much cheaper than the Ambroid and I could get it locally. Still trying to perfect my technique and keep it where I want it....

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#9 9 years ago
 
ERJ

tracelifter

Inactive member

12y 80,300 6,318

OP
Quoted from boneman91:

So I bought the Tenax from my local hobby shop and gave it a try. I can't believe that the Ambroid is any runnier than the Tenax. It ran like water. Seems to be holding well. Was about 5 bucks, much cheaper than the Ambroid and I could get it locally. Still trying to perfect my technique and keep it where I want it....

A syringe or a pipette.

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#10 9 years ago
OP
 
KSA

boneman91

Inactive member

US Fairfax Station, VA

10y 28,150 292 11

I used a little plastic pipette that I bought at the same time as the glue. The pipette tended to leak at the wrong moment. I'm gonna try a syringe next.

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#11 9 years ago
 
LEE

LEE

Pinside member

12y 43,400 783

Looks to me like Tenax contains cyanoacrylates. The stuff super glue is made from. I have found(as others have too), that Super Glue, one day is neither super or glue anymore. Not a permanent repair.

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#12 9 years ago
 
LEE

LEE

Pinside member

12y 43,400 783

I have had much better results and long lasting repairs using a two part methacrylate.

You can even remake missing sections of plastics with them.

I guess that I should post a pictured tutorial someday.

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#13 9 years ago
 
DAS

luckymoey

Pinside+ Frequent

10y 105K 2,079 44 1

Quoted from fish1975tx:

Plastic Surgery is a good glue for ramps as well.

Plastic surgery is clear and wicks right in, it's avialable at ACE Hardware and doesn't need a special applicator.

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#14 9 years ago
 
TAB

terryb

Inactive member

US Banning, CA

11y 90,150 4,795 14

Quoted from LEE:

I have had much better results and long lasting repairs using a two part methacrylate.

What product do you use?

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#15 9 years ago
 
LEE

LEE

Pinside member

12y 43,400 783

I get it through a distributor in my line of work. I believe that you can find it here;
http://tinyurl.com/o4kbhx6

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#16 9 years ago
 
TAB

terryb

Inactive member

US Banning, CA

11y 90,150 4,795 14

Quoted from LEE:

I get it through a distributor in my line of work. I believe that you can find it here;

I was curious if you where talking about Plastex. I've used it to rebuild broken tabs on plastic ramps (see article below), but have not tried it on cracks. If you've had any luck using it with cracks, it would be great to see any photos you might have.

http://pinballrehab.com/1-articles/pinball-restoration/ramps-and-plastics/179-repairing-broken-ramp-mounting-tab

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#17 9 years ago
 
LEE

LEE

Pinside member

12y 43,400 783

Here's a slingshot plastic I repaired probably 15 years ago. It is clear and strong repair. I can still flex it and it didn't re-break unlike older repairs which have been made with cyanoacrylates.

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