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reddkryten Profile
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Apprentice

Registered: 09-2003
Posts: 226
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Re: How can I slow down the setting time of plaster.


Quote:

artsee1 wrote:
Ed nailed it.



Seconded.

I never thought of it before, but the mixing bucket I have is pretty big, so I've been making more than I need.

I don't want to know what would happen if I used warm water. Winter, numb hands and I still only had five minutes working time.

Thanks Ed, Thanks everyone.

---
If I gotta get out that door, and you're standing in my way, one way or the other, you're gettin' outta my way.- Mr.Pink.
1/21/2006, 9:50 pm Link to this post Send Email to reddkryten   Send PM to reddkryten
 
efarrell4 Profile
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Head Administrator

Registered: 02-2004
Posts: 7501
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Re: How can I slow down the setting time of plaster.


That's why we're all here Bro. To help each other out. I'm glad my little contribution is of assistance to your enjoyment of this wacky hobby or ours. :coffee

---
I'm "Uncle" Ed and I approve this message...
I do NOT accept PM's, EVER!! If you need to contact me use my email [email protected] , it hasn't changed since 1996. ALL PM's will be ignored!
1/22/2006, 6:04 pm Link to this post  
 
BillEl Profile
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Apprentice

Registered: 01-2005
Posts: 110
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Re: How can I slow down the setting time of plaster.


I am no expert on this so you may want to look this up elsewhere. I bought a book from a company called 'Castcraft' a while ago and they say to slow down plaster add Borax (5% by weight) to the dry plaster. They also say to add ordinary baking flour (white flour). They say to mix the plaster as usual then add the flour until the plaster becomes thick as paste. They say you can then shape the plaster for hours. They say it will then take 24 hours to harden completely and will be full strength then.

Like I said, I'm no expert and haven't had to try this so you may want to experiment on a small batch just to see.

Bill-El
1/22/2006, 10:42 pm Link to this post Send Email to BillEl   Send PM to BillEl
 


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