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5 min epoxy

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
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5 min epoxy

Unread postAuthor: xboxteen01 » Tue Jan 29, 2008 7:13 pm

i modded my sprinkler valve with a 1/4 npt barb and had a small air leak. so i picked up some 5 min epoxy from home depot for like 2 bucks and put it on the area. I also sealed off my solenoid valve port with the stuff. I realize it sets in 5 min and cures after like 24 hrs but i did this yesterday at like 3 PM and today at 6PM it still hadnt dried. some of it got on my cement floor and its been liquid since then. The amount i used to seal the valve has just begun to harden up today around 4 oclock. any tips for using the epoxy?
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Unread postAuthor: bigbob12345 » Tue Jan 29, 2008 7:14 pm

how cold is it were you left it to dry because if its below frezzing it has a real hard time drying
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Unread postAuthor: mopherman » Tue Jan 29, 2008 7:15 pm

It sounds like you didnt have the correct epoxy/hardener ratio. Just wait untill it dries and mix it in a 1/1 ratio next time.
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Unread postAuthor: OuchProgramme » Tue Jan 29, 2008 7:20 pm

mopherman wrote:It sounds like you didnt have the correct epoxy/hardener ratio. Just wait untill it dries and mix it in a 1/1 ratio next time.


Yep. Sometimes the glue section of the epoxy has a lower ratio because the leftovers from previous gluing sessions dried in the nozzle.
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Unread postAuthor: xboxteen01 » Tue Jan 29, 2008 8:17 pm

yea i think that is what happened, the rations were off and prob not fully mixed. thanks again for the help
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Unread postAuthor: BigGrib » Tue Jan 29, 2008 8:54 pm

Yes your ratio is off. What kind of 5 min epoxy did you use?? I prefer Loctite 5 min because the whole assembly is in a dual tube syringe style setup and it is pretty hard to get the ratio off, even though it still happens every once in a while.
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Unread postAuthor: xboxteen01 » Tue Jan 29, 2008 9:13 pm

i also use locktite, and thats why i was unsure of how the ratio could be off, but i just patched up something ,like 20 min ago, and it is already hardened up, so i dont know, the first one mustve been a fluke
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Unread postAuthor: Maniac » Tue Jan 29, 2008 9:22 pm

but did you mix the loctite enough i do that from time to time. The ratio might be perfect but not mixed well enough.
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Unread postAuthor: xboxteen01 » Tue Jan 29, 2008 9:40 pm

im not sure on the mixing. i mixed it till it was blended, but i sort of rushed it cause i took the 5 min thing abit to seriously lol, so i may have under mixed it
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Unread postAuthor: jackssmirkingrevenge » Tue Jan 29, 2008 11:26 pm

correct ratios, mix it well, room temperature and leave it enough time to cure and you'll be ok.
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Unread postAuthor: pyrogeek » Wed Jan 30, 2008 12:42 am

I have used a couple tubes of epoxy meant for use on plastics that just never set up. I mixed it in the correct ratio and mixed it very well, but it never hardened even the least bit.
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Unread postAuthor: xboxteen01 » Thu Jan 31, 2008 2:39 pm

@ pyrogeek: how did you fix that?
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Unread postAuthor: frogy » Sun Feb 03, 2008 9:12 am

I also use Loctite 5 minute epoxy... All the time...

If you push the syringes in unevenly, you will mess up the 1:1 ratio of hardener to resin... The bad thing about this means that you've messed up the whole tube...

To fix this you will have to squirt out the extra resin\hardener until the syringes are equal...

Simply get a piece of paper (what your supposed to mix it on anyway) and evenly depress the plungers of the epoxy syringe until you have the yellow and clear liquids coming out at an even rate... Rip off the uneven part and then mix the 1:1 ratio... It should set in about 5 minutes... Be usable in 8, and fully cured in 24.
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