Pretty sure you can speed up the process by heating with a heatlamp or
Which seems odd to me as the stuff gets warm all by itself as it hardens,
and the colder a set, the longer it will take.
If you vary the amount of hardener, adding more than the standard 50/50 mix
this will make it set faster too, IIRC.
Actually,for epoxy,adding more hardener does NOT speed up the cure;all you
get is a sticky mess.Epoxy depends on proper ratios of resin/hardener to
cure,excess hardener is just extra stuff in the mix.The hardener is a
Also important is proper,*thorough* mixing.
Epoxy in thin layers does not generate heat like thicker amounts.That's a
commmon trick to slow curing time;place mix in a large container that lets
the epoxy be in a thin layer,keeps it from generation heat and speeding the
Reference;The Epoxy Book,from System Three.
I like to give mine 48 hours just to be sure because if it ain't cured, you
don't have a second chance. And then if it's winter, I bring it in the
house where it is at least 70 degrees. Otherwise, where I live, it is
blazing hot most of the time, like today was 95, and things dry very
quickly. But still I let it go for two days. I just JB welded a
plastic/metal sewersolution housing for my motorhome. That stuff is
awesome, and I don't use much of anything else. Tomorrow will be the third
day, and I am going to hook it up. I am pretty sure it is dry by now. ;-)
replying to SteveB, Dougie Quick wrote:
JB weld in particular seems to take much longer than the other epoxy products I
have used ...but man is the stuff tough and durable! I used it to fill in a
sharp dent in a steel frame and I had a heck of a time getting it to stay put!
I would shape it with the putty knife just right and come back half hour later
and it had sagged ...over and over again I did this until it "went off" and set
...by then some had sagged and remained sagged so I had to add more and wait
ANOTHER day or so! Would have been effort ahead to rotate the frame (which
would have been difficult) so gravity held in the jb weld! ....even then it
would have taken multiple applications ....on a more positive note the repair
was like flawless finally! The stuff is fairly easy to file and sand ...and
once painted? The dent was GONE from view!
Epoxy does not dry. It cures and time is dependent on curing agent.
There is also a setting time or period that it will still flow to work
but complete cure may take much longer. Fast setting epoxies must be
used within 5 minutes. There are also industrial epoxies that take high
temperature cure and will not set for months until heated.
Yes. At the retail level there is iirc 5-minute, 30-minute, and maybe
other times for epoxy products that don't come in the double syringe.
You have to get something fairly close to a 50-50 mixture or curing
time can be increased, greatly to the point of never finishing.
After driving over a chrome strip on my way to work, I applied a gas
tank patch, woven fiberglass patch with epoxy over it, to the big hole
in the tank, but it was an 85 or 95 degree day and it cured before I
could really get it on. I had to buy gas every 8 miles on the way
home, and I still ran out once.
The next day I bought another identical kit but I put it in the
freezer for 30 minutes. It was also cooler because it was 9 in the
morning. That one worked and lasted more than 6 years.
Did you read my post or just decide to show your ignorance?
"the tubes don't give the proper drying time"
This statement might lead an someone to believe that the tubes say nothing.
Other than a general safety warning.
There are very few mind readers following this group. You gave no indication
that the tubes were completely unmarked. Actually, I find that very odd. How do
you know what is in the tubes? Where did they come from? Are you sure they are
even two part epoxy? How can you be sure? How many times did you retake
"critical thinking 101" before your failed it for the last time? Your posts just
keep generating more questions that beg for answers.
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