jacka
New Member
Posts: 3 
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Post by jacka on Aug 27, 2016 13:43:10 GMT -5
I'm looking to make pen blanks and don't have any pressure vessel to cure the resin. Can i get away with just pouring the mold and letting it harden while vibrating it to get bubbles out?
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Post by jeswinehart on Aug 27, 2016 20:48:06 GMT -5
What resin you thinking on making your pen blanks with jacka ?
I use pressure casting on certain parts and it works great. I can not be quick enough using on some Alumilte resins but slower curing resins I can.
I will add that in most cases vacuuming mixed resins eliminates all my air bubble troubles,,,, so long as cup time allows.
john
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jacka
New Member
Posts: 3
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Post by jacka on Aug 28, 2016 19:48:06 GMT -5
I haven't bought anything yet, i'm not sure what i should get. I want to make the Fiji pen blanks with scrap wood and powder dyed resin. I just don't have the money for a pressure vessel and i'm not sure if pen blank making is worth getting into. Is there a type of resin that i can get the bubbles out by vibrating it?
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Post by carol - Alumilite Corp on Aug 29, 2016 15:22:42 GMT -5
Hello Jacka, Most of our pen turners use the Alumilite Clear and the Alumilite Clear Slow, the slow is becoming the most used as it has an open time of 12 minutes as opposed to the 6 minutes of the Alumilite Clear. No Jacka, vibration will not take away all of the bubbles, pressure is your best bet but vacuum will work too. I would have to say that the biggest majority use pressure, if you have a air compressor you can pick up pressure pots a different places starting at around a $100.00. If not pouring the resin into a silicone mold, pouring into cutting board, pvc, etc you will need to use a silicone release. (Stoner works well) Remember the resin is a polyurethane and moisture is not tolerated well, the scrap wood must be dried good. We do have the Amazing Clear Cast, that is an epoxy it could be used with less chance of bubbles than the urethane resins but degassing is still suggested if possible. You can use isopropyl alcohol misting to eliminate some of the bubbles as they rise to the surface after pouring. Please read about the Amazing Clear Cast for some great tips on using this product at www.alumlite.com. Regards, Carol |
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jacka
New Member
Posts: 3
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Post by jacka on Aug 31, 2016 16:32:20 GMT -5
So, as for a vacuum, would a ziplock bag with the vacuum seal work, you can draw out a fair bit of pressure
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Post by carol - Alumilite Corp on Sept 1, 2016 9:32:09 GMT -5
Jacka,
To degass the clear it pretty much needs a full vacuum at 29". Vacuum seal units I am told don't even reach 16-17".
Regards,
Carol
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