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Casting & Stabilization Making your own blanks & stabilizing wood blanks.


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Old 10-05-2017, 10:58 PM   #1 (permalink)
 
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Hi.... my Alumilite Clear (slow) arrives tomorrow and I am spinning in my boots to perform my first cast!!! Here is my question. I live in El Paso, Tx. And work out of my garage. With the heat that we have here in El Paso what precausions can I take (other than speed up LOL) to get the best chance for success?

I have a second question. My HF pot does have a small leak. I can put 50PSI in the pot and it will leak to about 41PSI and then sit there solid for 4-5 hours. Like I said not bad but when troubleshooting the leak, by the time I can submurge the pot in water I am at 41PSI and no leak. Very frustratingly Any ideas?
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Old 10-06-2017, 02:36 AM   #2 (permalink)
 
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Hi,
You could check your over pressure relief valve, most are adjustable
Irv
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Old 10-06-2017, 05:14 AM   #3 (permalink)
 
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Yep, most likely the pressure relief since it stabilizes. Honestly the 41 psi is probably enough for most things though.
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Old 10-06-2017, 10:00 AM   #4 (permalink)
 
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My concern wouldn't be the heat but the humidity. Any moisture in a blank will cause Alumilite to bubble. If you don't think the blanks are dry I put then in the oven for an hour. If they're dry put them in the mold and warm both up in the oven for 20-30 min. As far as loosing pressure it would worry me loosing any while the blanks are curing. I leave my Alumilite blanks in the pot for 2 hours. If the leak is small enough so the compressor doesn't continually run leave it hooked up until you fix the leak.
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Old 10-06-2017, 04:02 PM   #5 (permalink)
 
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Quote:
Originally Posted by Kkoscielski View Post
Hi.... my Alumilite Clear (slow) arrives tomorrow and I am spinning in my boots to perform my first cast!!! Here is my question. I live in El Paso, Tx. And work out of my garage. With the heat that we have here in El Paso what precausions can I take (other than speed up LOL) to get the best chance for success?



I have a second question. My HF pot does have a small leak. I can put 50PSI in the pot and it will leak to about 41PSI and then sit there solid for 4-5 hours. Like I said not bad but when troubleshooting the leak, by the time I can submurge the pot in water I am at 41PSI and no leak. Very frustratingly Any ideas?


No need to submerge, a spray bottle with soapy water will let you know where the air is coming out.
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Old 10-06-2017, 05:22 PM   #6 (permalink)
 
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I would want to find and fix the leak issue but you only need about 2 hours of pressure pot time with alumilite so you should be fine.
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Old 10-06-2017, 09:46 PM   #7 (permalink)
 
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You'll be fine at 41 psi. It never hurts to find the source of the leak though. My HF pot did the same thing - and I knew it wasn't the relief valve or fittings after testing with soapy water - so I made a "wrench" from a 2" dowel to crank the bolts an extra half turn and that solved the problem.
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