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» Stats |
Members: 8,485
Threads: 13,893
Posts: 106,354
Top Poster: nova (1,786)
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| Welcome to our newest member, Ahopkins31 |
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July 16th, 2008
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Join Date: Apr 2005
Location: Pittsburgh, PA
Posts: 183
Gallery:
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Hydrocal For Molds
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July 16th, 2008
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TU Club Member
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Join Date: Aug 2004
Location: Valdosta, GA
Posts: 1,221
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Re: Hydrocal For Molds
I use UltraCal 30 in with my POP to give the mold some stiffness when making larger molds. Works great but does increase the drying times significantly.
Jim
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July 16th, 2008
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Join Date: Apr 2005
Location: Pittsburgh, PA
Posts: 183
Gallery:
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Re: Hydrocal For Molds
Does it prolong the POP setting up?
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July 17th, 2008
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TU Club Member
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Join Date: Aug 2004
Location: Valdosta, GA
Posts: 1,221
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Re: Hydrocal For Molds
Yes it does....Where POP may cure within 24 hours (with heat or other curing), adding UltraCal 30 may increase the drying time to several days. Maybe not the best for a quick mold but for the final deal, it helps harden it up real well.
Jim
Last edited by ghostbaits; July 17th, 2008 at 11:19 AM.
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July 18th, 2008
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TU Club Member
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Join Date: May 2004
Location: Milton, New Hampshire
Posts: 398
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Re: Hydrocal For Molds
I use straight UltraCal30. I pour in the afternoon or evening and demold the next morning. I speed up the drying by putting them on top of my furnace. It does take a lot longer than plaster to dry. I let it sit on the furnace for a week. Since I only make molds in the off season (from fishing) my routine is generally pour on Saturday, demold on Sunday morning, dry all week and seal the following Saturday.
UltraCal 30 gives great detail and the molds are very strong (and heavy). I buy it in the 50 pound pail from Plaster.com and it is about 50 bucks shipped to my house in a bucket that looks like a tall bucket of sheetrock compound.
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July 18th, 2008
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TU Club Member
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Join Date: Jan 2007
Location: N Central Tx
Posts: 295
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Re: Hydrocal For Molds
is it available anywhere else? I have looked at Lowes and they don't seem to know what I'm talking about.
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July 21st, 2008
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TU Club Member
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Join Date: May 2004
Location: Milton, New Hampshire
Posts: 398
Gallery:
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Re: Hydrocal For Molds
I believe plaster.com has a list of distributors. I found my nearest distributor was too far away to make the trip worth while when gasoline was 2.50 per gallon so at todays prices....................
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July 21st, 2008
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Join Date: Apr 2005
Location: Pittsburgh, PA
Posts: 183
Gallery:
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Re: Hydrocal For Molds
Its typically available at Hobby Train stores. They use it alot for scenery and making landscapes. It usually only comes in a couple pound milk carton and is around $10 if I remember right. Look up a nearby hobby store and they will proabably have it. here is a link to one I found.
Go to ehobbies.com and search for hydrocal. It is the first one in the upper left hand corner. Hope this helps!
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