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Right Material For Plastic Part Repair??

Discussion in 'Hardware' started by Ariesjill, Dec 4, 2007.

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  1. Ariesjill

    Ariesjill Banned Thread Starter

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    I am in serious need of the right material to repair a hairline crack in a laptop part…..just got this rare part from eBay vendor 4 as usual, 2 much money….he din see the crack. I did and must now decide between returning it or repairing it. Cause I Googled infinitely and get the polys these parts R apparently usually made of very hard to repair…..with anything conventional.

    An adhesive vendor on ebay tells me this should work. I am not sure.

    http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&rd=1&item=260111642185&ssPageName=STRK:MEWA:IT&ih=016

    Has anyone had any experience with such things? This is another lappy I found in garbage way back….should have left this one, but now in FAR 2 deep re time invested over months…and money spent on parts to quit now.
    Thanks much.
    ______________________________________
    Edit:

    More Googling...I need to get this right and not waste more time/money on wut will not work. ("Measure twice, cut once." ) Just found this:

    http://www.plastex.ca/?Source=Google
    Edit 2;

    Just saw this on that Canadian site:

    6. Can Plastex be used on Polyethylene and Polypropylene?
    While many customers have used Plastex with these materials, it was not specifically designed for that purpose


    Blech. Took me long time to get to these parts R made of those...and the above from their FAQ section is vague. I hate vague.
     
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  3. crjdriver

    crjdriver Moderator

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    I have used JB Weld to fix many plastic and metal parts. You can find this in any automotive store along with [probably] wal-mart.
     
  4. Ariesjill

    Ariesjill Banned Thread Starter

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    Hey,

    already learned about that and checked it....says on their site will not work for the polys! Honest. and one eBay vendor agrees. I am amazed it works for you. Can you share details, pls?

    I also fond the Candadian stuff on ebay....expensive....as is my DESTINY IN ALL THINGS. Adorable guy, Michael just replied...I will paste:
    Dear ariesjill,

    Hello ariesjill

    To end this bout of depression....yes i do think this product will work.

    On the automotive side..we use it for tail light lenses...replacing mounts on radiators.....etc.

    This works with all the Poly sisters!!!

    Seriously...I do believe this will work for you

    Michael

    _______________________________________
    Just once...I would like something 2 B simple, OK? And not requiring 3 sleepless nites of Googlings and postings.
    :(
    __________________________________________
    Adendum:

    I bookmarked this middle of nite when I was learning about stuff starting with wut U use. This is from their site; go figure:

    Q: Is there anything that J-B Weld WON'T bond to?
    A: J-B Weld will not adhere to, or bond well to:

    Any flexible rubber surface
    Leather
    Vinyl
    Canvass
    Polypropylene plastic
    Polyethylene plastic
     
  5. SB305

    SB305

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    Jilly, if it IS a hairline crack cyanoacrylate ("Superglue") works perfectly on polystyrene but is not ideal for bendy, waxy plastics. Any overspill onto the top surface will leave it with a crystalline look which can be polished off, eventually, with care if appearance is important. Cyanoacrylate comes in various viscosities, the best for a hairline crack being about the consistency of water and should be fed into the crack on the point of a pin. It will irreparably stain and stiffen fabrics if spilled onto them and ON NO ACCOUNT should you inhale the fumes.
     
  6. Ariesjill

    Ariesjill Banned Thread Starter

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    Hey!

    Well I nevah did get wut Crazy Glue works on & WUT it doesn't. It works AMAZINGLY ON SKIN, THOUGH.:rolleyes: And who needs a functioning opposing thumb anyhow???

    Also know that they ahve a special kind for plastics. given the hairline fracture...still a FRACTURE........is near the rear left top section where the LEFT lcd pin fits into....i worry about the streSS of opening and closing the lid. when i put the lid back, that is.....after unsoldering and soldering a lead which i am not sure i know how to do PROPERLY.....but first things first.

    So U r saying you have used the garden variety cyano/CrazyGlue on these parts successfully??? Not the one made for plastics?
    _______________________________________
    Well, the plot thickens and becomes more Byzantine and confusing (hardly 4 the first time):

    http://forum.doityourself.com/showthread.php?t=185470
     
  7. SB305

    SB305

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    I've used very thin viscosity Superglue on polystyrene scale models where it was THE BEST type of adhesive available. The plastic would break before the joint would. The thicker stuff that you usually get is too messy and doesn't penetrate as well. Both set very quickly.
    Did you find the exact type of plastic that the component is made from, Jill?
     
  8. Ariesjill

    Ariesjill Banned Thread Starter

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    Another vote 4 CRAZY GLUE!
    Answerer 2
    First thing is get some tools out and loosen that hinge area just a tad. If it cracked, it was way too tight. That plastic, I have a pretty good fix for you. One- you can order parts of Flea-Bay if you want it really purdy. Second is ( Dont roll your eyes) Crazy glue. But with a kicker. Head off to a local model plane place.. The kind that builds those wood models. You will find a primer, sometimes a spray, sometimes a small brush on deal. Either way, it's a primer for this crazy glue type adhesive. Once applied, this primer/glue combo works GREAT. It's not like all the other times you've tried t use crazy glue and had it fall apart in your hands seconds later. The primer/accelerator makes all the difference in the world. I use it weekly on plastics and it's never failed yet.
    3 months ago

    I must now start work. I am nauseous, OK? I must not think aobut this new mess until I finished. the endor swore this part was pristine at the business end. I am very tired of being vigilante and not trusting.

    But I think he would also take it back it that is my choice. $35 for this thing....cause they can't B found anywhere, I have been looking 4 months.

    As always, I appreciate all the help.....this place and those who opulate it....precious.I will get clear on right path here....with all this help, U kidding?
     
  9. Ariesjill

    Ariesjill Banned Thread Starter

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    Wow...thanks for these adidtional data.

    Re trying simply to identify the plastic, I Googled just re this until I fainted middle of nite. Sleep is conspiracy anyhow.

    No point in asking the Mfg....these VPR Matrixs R made for Best Buy. By vipers (hence the "V') somewhere underground abroad. Even I would not waste time on that road.

    I ended up with that these parts R probably one of the two polys....or, as adorable Michael calls then, "the poly sisters."

    Found a post from way back on a notebook site...I even joined it just to ask a guy who responded in the post more info. Was my first and I am sure, only post there.
     
  10. SB305

    SB305

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    When you go to that model shop, ask if they have any specialist adhesive for polypropylene (just to take a look at). There used to be some large scale polypropylene figure kits such as Batman (and Judge Dredd's sidekick modelled on Blondie :cool: )
     
  11. Ariesjill

    Ariesjill Banned Thread Starter

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  12. Ariesjill

    Ariesjill Banned Thread Starter

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    Moving right along and messing up.

    I can not multitask. Should ot try to do things between clients.

    I looked and found I had crazyglue gel. why? i do not know.

    I did remember T said he used dilute cyano....not viscous. did I look at the back of the blister pack? No. I just went ahead. THEN i looked. Leap...then look.

    It says right in front of me:, #7 in the "Not recommended for" list...."b) polyethylene or polyprophylene." As per Michael: the POLY SISTERS. (Told him I read they R in rehab.)

    Wondaful. But I will let it cure and C wut up. I do have solvent for this stuff. We shall C now if this part is part is poly sisters or not.

    I hate how they make things increasingly, laptops esp. Garbage. my lappy made bettah than this.
     
  13. Ariesjill

    Ariesjill Banned Thread Starter

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    Moving right along and messing up.

    I can not multitask. Should not try to do things between clients.

    I looked and found I had crazyglue gel. Why? I do not know. I remember buying in in Duane Reade.

    I did remember T said he used dilute cyano....not viscous. Did that stop me? No. Did I look at the back of the blister pack? No. I just went ahead. THEN i looked.

    It says right in front of me:, #7 in the "Not recommended for" list...."b) polyethylene or polyprophylene." As per Michael: the POLY SISTERS. (Told him I read they R in rehab.)

    Wondaful. But I will let it cure and C wut up. I do have solvent for this stuff. We shall C now if this part is poly sisters or not.

    I hate how they make things increasingly, laptops esp. Garbage. My lappy made bettah than this. for which I got this part....after a gazillion other parts including new high end, Fujitsu HDD.
     
  14. Ariesjill

    Ariesjill Banned Thread Starter

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    Ok not so hot. The Crazyglue gel Looks OK but when U test it no sound repair. Not for a flimsy part of a part which will undergo stress.

    Rushing between clients, I just got this:
    http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&ssPageName=ADME:B:EOIBSAA:US:12&Item=260111642185

    this guy reverses purchases, last one at bottom. Lots of people got this before i did. So it couldn't be total merde.

    I emailed this vendor early this aM, pls help me this is wut I need for why....he was lovely told me not to get the JB stuff but he felt this would work. I Googled it. It does the poly sisters. So I got it. Am sure wut I have spent over time....forget the gazillion hours of taking things apart, fixing, putting back, taking apart again....more than it is worth. Way more. I even bought a dead carcass of this lappy on ebay. For parts. Also a battery. Do not ask, OK?:eek:

    And here I am tryin to repair a part I bought based on I was told the business end was perfect.

    It's a learning experience, OK? :eek: :p
     
  15. Ariesjill

    Ariesjill Banned Thread Starter

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    Before I came 2 I should get the Plastric weld...I had emailed Devon who makes it. Just this sec heard back from "Steve"....who seems to confirm this stuff should work.

    Computers very high maintenance pets, right? But only if U r nvolved as deeply as I---and YOU-all. Pasting from Devon, cause hard 2 believe everyone, at soe point migt not to make such a repair!:

    Jill; I'm not sure of the type of plastic that is but I'm guessing that
    it's either ABS or polycarbonate. Plastic Welder is a great choice, but I
    do recommend testing and also this is a "off white" or yellowish color.
    Thanks!

    Steve Leslie
    ITW Devcon
    30 Endicott Street
    Danvers, MA. 01923

    Following form was submitted on 12/04/2007 at 05:11:03 PM

    category: [ Consumer ]
    interest: [ Other ]
    first_name: [ Jill ]
    comments: [ right product?

    request: [ Am in need to fuse small hairline fracture in
    important plastic laptop part. Would the consumer type Plastic Weld U make
    b suitable???? I now get plastics must be, can only B repaired with very
    specific material. ]
    need: [ 3 Months ]
    product_interest: [ Devon Plastic Weld ]
    apply: [ repairing hairline crack ]
    source: [ ebay vendor ]

    My response:

    Hi Steve!

    Yes, after a gazillion Googlings, I kinda got the part is made of one of the poly sisters. So, I ordered yr product yesterday from an eBay vendor....I could not care less about the color it cures. If it CURES (LOL) THE PROBLEM, IT COULD DRY/cure MAGENTA.

    Thanks much 4 the info; I feel betta.

    Jill
    _________________________________
    I am praying.
     
  16. SB305

    SB305

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    Just to confuse things even more, Jill, the best adhesive for ABS is contact adhesive with which you coat both surfaces to be joined. But the guy from Devcon ought to know what he's talking about - the brand name's been running for at least 40 years.
     
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