Andrew Butchart inscribed in red ink for all to know:> Autumn has definately arrived here along with colder temperatures. I> have a couple of gallons of polyester resin that I'd rather not move> into the house. It's in a plastic pail right now and the "scent" tends> to spread. I've tried putting the pail into a garbage bag but can> still smell it.>
Would it be harmed if I just left it in the shed and the temperature> falls well below freezing? I'm hoping for enough nice days to finish> my hull but can't count on it.>
Andrew B>
Actually, storing it in a cool or cold place is one of the best things you can do to preserve it. Styrene freezes at -31 C, so you will likely be well above its freezing point. But even if it did freeze, it does not swell when freezing, so there is no risk of bursting the container.
RW Salnick 26 September 2006 23:29:13 [ permanent link ]
RW Salnick inscribed in red ink for all to know:> Andrew Butchart inscribed in red ink for all to know:>
Autumn has definately arrived here along with colder temperatures. I>> have a couple of gallons of polyester resin that I'd rather not move>> into the house. It's in a plastic pail right now and the "scent" tends>> to spread. I've tried putting the pail into a garbage bag but can>> still smell it.>>
Would it be harmed if I just left it in the shed and the temperature>> falls well below freezing? I'm hoping for enough nice days to finish>> my hull but can't count on it.>>
Andrew B>>
Actually, storing it in a cool or cold place is one of the best things > you can do to preserve it. Styrene freezes at -31 C, so you will likely > be well above its freezing point. But even if it did freeze, it does > not swell when freezing, so there is no risk of bursting the container.>
bob
<answering my own reply - geez>
OK, styrene is only one of the components of polyester resin. It is still true that cool/cold is good, and that it will not swell if it should actually get below the freezing point.
Meindert Sprang 27 September 2006 14:56:43 [ permanent link ]
<marierdj@nb.sympatico.ca> wrote in message news:IGkSg.40864$9u.347854@ursa-nb00s0.nbnet.nb.ca...> Then the following spring I used some of the resin and quickly found out> that it did not cured at all after several days.
Have you tried to put some extra catalyst ("hardener") in the resin?> I bought new resin and it did cured well. Now I have to dispose 1/2 gallon> of resin. Legally I cannot closed the gallon and put it in the garbage.
was told that the resin has to solidified before it can be disposed. The> question is how am I going to solidify the un - curable resin already in
gallon can?? Conversely I do not have problem with epoxy resin.
Which is logical. Polyester resin only needs a catalyst ("hardener") to start to cure while with epoxy, the hardener is part of the chemical reaction to form resin. So without the hardener, there will be no resin.
Brian Nystrom 27 September 2006 23:43:31 [ permanent link ]
Wm Watt wrote:> Andrew Butchart wrote:>> Autumn has definately arrived here along with colder temperatures. I>> have a couple of gallons of polyester resin that I'd rather not move>> into the house. It's in a plastic pail right now and the "scent" tends>> to spread. I've tried putting the pail into a garbage bag but can>> still smell it.>>
Would it be harmed if I just left it in the shed and the temperature>> falls well below freezing? I'm hoping for enough nice days to finish>> my hull but can't count on it.>>
Andrew B>
I've actually had a can of Canaidan Tire polyester resin sit in the> back of my fridge for 20+ years and then used it all up before buying> another can. I'd keep the resin aritight and cool. Wrap a wire tie> around the plastic bag and maby suck the air out of it for good> measure. I've heard that if it crystalizes it can be heated and used.
I've had good luck with refrigerating gelcoat, which is also a polyester resin product, though it's been more like two years than twenty.
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