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Fiberglass resin/catalyst no good

Discussion in 'The Hokey Ass Message Board' started by fritznbud, Nov 28, 2010.

  1. fritznbud
    Joined: Nov 7, 2010
    Posts: 6

    fritznbud
    Member
    from SC

    I guess we must be getting glass resin and hardener from the Chi-coms now. The shit dont work anymore for me. I've got one hell of a mess under the dash of my model A. After 3 attempts of laying in a 5"x8" piece, i'll have to forget it, acetone what i can get off and never touch the crap again. For fun, i mixed half and half resin/ catalyst...didn't even warm up much less blow up. I bet home depot and advance auto have never gotten a fiberglass return like there gonna get tomorrow. I'll spread this shit all over their store ;(
     
  2. BISHOP
    Joined: Jul 16, 2006
    Posts: 2,570

    BISHOP
    Member

    Fiberglass and metal dont work well together anyway.

    The best place to get good glass and resin is from a boat manufacture, or marine repair shop.
     
  3. How all is your Products ?
    Hardener (MEK )has a shelf like of three years, and will go bad in direct sunlight.
    Resin bought from auto parts store's does not sell very fast at all. it can sit on shelf for years, from the date of manufacture. It will seprate, and jell.

    If you have a boat repair shop near you, just get some new Resin, and mek. Store everything in a cool dark place.
    Normally shelf is not a problem as the industal world, as it is sued before it becomes a problem.
     
  4. CutawayAl
    Joined: Aug 3, 2009
    Posts: 2,144

    CutawayAl
    Member
    from MI

    Low temps and insufficient mixing can both cause curing problems. Old materials can act up too.
     
  5. OldCrow
    Joined: Jan 10, 2010
    Posts: 134

    OldCrow
    Member

    no no. it's always the suppliers fault. I say burn down home depot and boycot advance auto. stone the employees just for good measure.

    Russ
     
  6. enjenjo
    Joined: Mar 2, 2001
    Posts: 2,720

    enjenjo
    Member
    from swanton oh

    Set it with a heat lamp. You can do that with no catalyst.
     
  7. fritznbud
    Joined: Nov 7, 2010
    Posts: 6

    fritznbud
    Member
    from SC

    Crow has the right idea!! *~* Shelf life is the problem, i went through the rack of catalyst and 2008 was the best they had. 2009 for the resin. NAPA had the same thing. Advance auto and Home Depot too. My 50/50 mix started to kick after 2 hours. Most people would have an explosion or fire after 2 minutes. It used to self ignite, didn't it? And let off a smoky gas. Mix too much catalyst and you couldn't hold it for the heat...
     
  8. i've had old products go bad, it's not something i use that often so i try to buy what i need for each job. as said it was probably old stock.
     
  9. lostforawhile
    Joined: Mar 23, 2008
    Posts: 4,160

    lostforawhile
    Member

    it's not the same, they took the isocyanites out of the resin, but it should still set, never really had a problem. if you mix it and it won't set right off, use a heat gun, but don't overheat it, once it kicks the rest of it will kick. i've never heard of it catching fire, if you use the proper amount of hardner it will be fine
     
  10. David Chandler
    Joined: Jan 27, 2007
    Posts: 1,101

    David Chandler
    Member

    I have run into that problem myself. Part of the surface hardens, and part of stayed tacky. Sort of strange because I made damn sure to mix it well. I ended up coating with a second layer, and everything went well. I got mine feom a hardware store, and God only knows how long it's been sitting on their shelf. But I have noticed that if I use it in a confined area, I have better luck with it. In my case I filled the front floor supports on my OT 83 C10. I had replaced them twice and they were rusting out again. Three years later and they are still rock solid.
     
  11. The Shocker
    Joined: Dec 30, 2004
    Posts: 3,538

    The Shocker
    Member

    I have never ran into this problem with Fiberglass and i have used it many times ,mainly to fix small unused holes in firewalls .I always mix it as the instructions say ,so many drops of activator per ounces of resin.I have always used the cheap bondo brand of glass though ,even though i wont use their body fillers .No heat lamps ,but i use it in warm weather and make sure to mix the Hell out of it before i put the cloth in...
     
  12. Canuck
    Joined: Jan 4, 2002
    Posts: 1,104

    Canuck
    Member

    Got a good friend that works for one of the companies that manufacturer the resins that everybody uses in their products. The shelf life of the resin is one year. Should be able to determine from the date codes on the bottom of the can, although I noticed that the resin sold here in Canada by Canadian Tire doesn't have any codes at all.

    Got the following information from Evercoat (ie: Evercoat Rage) regarding their resins:
    <?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:eek:ffice:eek:ffice" /><o:p></o:p>
    The warranty on our products is one year from the manufactured date. The code would be on the bottom, 6 digits. First digit is the year, second & third digit is the month, last three is our internal number. Example 809112<o:p></o:p>
    8 – 2008<o:p></o:p>
    09 – September<o:p></o:p>
    112 – internal number<o:p></o:p>
    Thank you for your interest in Fibre Glass-Evercoat products.<o:p></o:p>
    <o:p> </o:p>
    <o:p>Canuck</o:p>
     
  13. Yup - Airtech,Fiberglast or Heatcon for fresh goods.
    And proper surface prep
     
    Last edited: Nov 28, 2010
  14. OldCrow
    Joined: Jan 10, 2010
    Posts: 134

    OldCrow
    Member

    The resin you buy at [x-mart] is generally of very low quality, even when it's freash. for any real "project" I buy a new can from here: http://www.uscomposites.com/ Always freash and they have a wide variety of cloths and resins to suit the needs of your particular project + great on-line service.
    Glad you've decided not to burn down Home Depot, cause I need some 2x4s to fix the fence. those are generally of serviceable quality there. ;)

    Russ
     
  15. cozee
    Joined: Aug 19, 2010
    Posts: 108

    cozee
    Member

    Auto refinishing jobber for auto body refinishing products. Period. And beware of those great online deals for the same products you can get from your local jobber.

    And OldCrow, I am gonna disagree with ya about finding "serviceable" lumber at the big orange box, or any of the other colored boxes, at least around here. I get so tired of having to cull through 30-40 2x4's just to find a few that are straight, not twisted, and not full of knots. I'll pay the little extra per board at the local lumber company.
     
  16. OldCrow
    Joined: Jan 10, 2010
    Posts: 134

    OldCrow
    Member

    our local "auto refinishing jobber" has the same brand of junk resin found at Home Depot, so...... no thanks.

    Our local Orange Box store will have more knots and twists also, but the fact that they LET you cull through the pile is worth it to me. At the lumber yard you get the pieces on the top of the stack and that's that. must be site specific.

    Russ
     
  17. carcrazyjohn
    Joined: Apr 16, 2008
    Posts: 4,841

    carcrazyjohn
    Member
    from trevose pa

    Why didnt you cheat ,Apply a thin coat of bondo on front of matting and stick in place ,Let dry then soak in the resin ,Let dry for a day and then just coat over ,with filler or fiberglass of your choice ,,,,,,,,,,,,,,,,,,,
     
  18. carcrazyjohn
    Joined: Apr 16, 2008
    Posts: 4,841

    carcrazyjohn
    Member
    from trevose pa

    Want to chime in on the lumber reply ,If you notice the racks all twist towards the back a little Thats why the lumber gets twisted ,When they start to dryout they follow the path of least resistance.........
     
  19. jonnyonedrip
    Joined: Sep 23, 2010
    Posts: 121

    jonnyonedrip
    Member
    from canada

    Any more than 2 % catalyst by weight is wasting it its a catalyst not a hardner just an innitiator, the time for the resin to go hard is mixed into the resin not the catylist. The most expensive part of the resins are the chems to make it go hard faster (cobalt and DMA) called promoters, your buying your products from the cheapest place you can find it they are going to try to cut corners anywhere they can, connect the dots. You should always atleast do a test sample before doing a project to determin what promoters have been used. Putting a heat lamp on it should help if its cold out.I have even microwaved resin to make it go faster. The thinner the layer the longer it will take for it to go hard it has to do with mass and heat generation. If your bonding to metal epoxy is a better choice the shrinkage is less when it goes hard and its not as brittle these properies allow it to bond to metal better. Sorry to hear you have a sticky mess best to scrape or grind it off and start over there is no way to trust whats on there already.


    Paul
     
  20. OldCrow
    Joined: Jan 10, 2010
    Posts: 134

    OldCrow
    Member

    Cozee,

    the hamb is a very large forum. perhaps if you keep looking you'll find a subject you know something about. this obviously isn't it. US Composites, the company which I suggested, is a very reputable supplier of all types of composite materials, wile many "local jobbers" cary the same product as found in X mart.

    Russ
     

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