Here's what happens to PR at 115 degrees in a cabinet,

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stevers

stevers

Member
Joined
Dec 18, 2005
Messages
2,991
Location
Bullhead City, Az., USA.
Hi All,
I left my PR in the cabinet in my shop. It has been an average summer, hot but not too brutal. Over the last few months I grabbed the can a few times to give it a shake and see how it was doing. Evidently I missed the point of no return. Not much I could have done anyway. I couldn't keep it in the house. And I don't have a fridge in the shop,,,,,,yet. So when I grabbed it a few days ago to cast a blank for my oldest Son, it didn't slosh in the can. When I opened it, this is what I found.
1_bad_PR_for_IAP.jpg
1_bad_PR_for_IAP_2.jpg


What a shame.:mad::curse:
Anyone care to trade a pint of hard PR for a pint of liquid PR?
 
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You might also be able to cast a 'doohickey' and cut this hardened material down and put it on top for a lens. Just a thought. I'm sure Yo-Yo Spin might have some other ides as well.
 
Something in my mind is not adding up--- I store my PR in plastic one cal gas containers and we've had temps for 5 days in a row over 105 and my shop got to 120 and today I've poured 6 cactus, 9 snake and 3 florentine blanks no problems. I actually make the pr thinner by heating it in my toaster oven at 150 degrees so it will penetrate worthless wood better. Now at 150 degrees it has not jelled but when the MEK is added it sets up much quicker so I've cut down on it to no more than 3 drops per oz. I wonder if the metal can had something to do with it setting?
 
Sorry to hear that Steve. Mine hasn't set up in the heat (yet):)

Maybe you can keep the next can in a bucket of water? It will still get quite warm, but at least it shouldn't get hot enough to jell.
 
Hey Steve , cut it into square blanks and make magnifier lenses out of it , turn them round and polish them and depending on the curvature of the lens you could get several out of that mess .
Just a thought .
 
I'd make a bowl out of it. I made a bowl out of an automotive urethane puck once, it machined like butter. I doubt the PR will machine that nicely but sounds like fun!
 
fiferb said:
Cut it into blanks and turn it. You could paint the inside different colors for different looks.
Click to expand...

That's a good idea. May do that.

OKLAHOMAN said:
Something in my mind is not adding up--- I store my PR in plastic one cal gas containers and we've had temps for 5 days in a row over 105 and my shop got to 120 and today I've poured 6 cactus, 9 snake and 3 florentine blanks no problems. I actually make the pr thinner by heating it in my toaster oven at 150 degrees so it will penetrate worthless wood better. Now at 150 degrees it has not jelled but when the MEK is added it sets up much quicker so I've cut down on it to no more than 3 drops per oz. I wonder if the metal can had something to do with it setting?
Click to expand...

Roy, This has been idle, except for my shake tests, for several months. It's also up wards of 8 or 9 months old. And sets near the top of the shop, just under the rafters, the hot part of the shop. I always try to close the cap as tightly as possible, but it's not the greatest seal in the best of cases. So, all in all, I got what I asked for.:frown:

dalemcginnis said:
Sorry to hear that Steve. Mine hasn't set up in the heat (yet):)

I'll trade ya Dale.:wink:

Maybe you can keep the next can in a bucket of water? It will still get quite warm, but at least it shouldn't get hot enough to jell.
Click to expand...

I'm going to shop for a cheap fridge over the winter. If nothing else, I'll have to figure a way to store it inside.

ldb2000 said:
Hey Steve , cut it into square blanks and make magnifier lenses out of it , turn them round and polish them and depending on the curvature of the lens you could get several out of that mess .
Just a thought .
Click to expand...

Another good idea. Have to let it fully harden, It's still a little bit rubbery on the bottom side.
 
Heat is what cures PR, as proven by Steve, I remember reading somewhere that it will cure without any MEKP if enough heat is present,.
Remember how to cure blanks that are curing slow, put them in a toaster oven, Steve just proved it's true, Sorry Steve, I need to check my can there's about a quart and a half left, MAYBE
 
Be happy that it isn't Alumilite that did that. It would have hit your wallet 3 times as hard. Maybe you can just smash it up into little pieces and make blanks with the pieces embedded in them. Or you can just call it a loss and start over.
 
Steve, Lowes has a nice stainless steel tool box that has a radio AND a fridge/cooler built into the base. It's just $1700, think of it as an investment!

Oh, and sliding in to the top of the list is our favorite Marine, who once again want's to blow something up! LOL... :)
 
Firefyter-emt said:
Steve, Lowes has a nice stainless steel tool box that has a radio AND a fridge/cooler built into the base. It's just $1700, think of it as an investment!

Convince my wife of that and I'll run right over and grab one!!

Oh, and sliding in to the top of the list is our favorite Marine, who once again want's to blow something up! LOL... :)

I assume you mean Jonnie??
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,,,
 
Who else... Look up to the top of the page were he thinks you should smash it up.

Could be better than when I had to explain to my wife (of less than a whole year) that I had just signed paperwork on a $4000 tool box off the Snap-on truck.... in 1991! (ouch is right!)
 
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