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


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Old 11-01-2017, 10:42 PM   #11 (permalink)
 
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Thatís good. I was worried about it suffering from vertigo and swirling the colors together. Hey, wait a minute, that would be a good thing! :o


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Old 11-01-2017, 10:48 PM   #12 (permalink)
 
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I found this one online ... anybody tried it ?

https://www.artmolds.com/pressure-pot.html

And I found the CAT one mentioned above (which it seems comes from Home Depot)

https://www.homedepot.com/p/Californ...365B/203526443

But both of these are more expensive than I thought this item should be.

And there is this one for half the price at Harbor Freight (which I don't have ready access to).

https://www.harborfreight.com/2-1-2-...ank-66839.html

And, at Grizzly, there is this one (which they have unkindly priced in Canadian dollars for me !!!! ).

2-1/2 gal. Paint Tank w/ Gauges | Grizzly Industrial

How about this one ... 2.5 gallon from TCP Global ?

https://www.amazon.com/TCP-Global-2-..._&dpSrc=detail

Ahah !!! ... Here is a company with a branch not far from me - Acklands Grainger

https://www.acklandsgrainger.com/en/...ssories/c/4806

HOLY COW ! .... I can't believe the prices .... all well North of $1000.00 !!!

I think that Canucks and Yanks speak different dialects on this subject, so I will have to persevere and look for alternative names for the same thing.

Has anyone seen this alarming advice ?

http://www.resinaddict.com/blog/2013...pressure-pots/
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Old 11-01-2017, 11:04 PM   #13 (permalink)
 
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Quote:
Originally Posted by magpens View Post
It seems that more and more of our members are learning to cast blanks.

At some point I would like to join in that activity.

I have not looked around seriously for a pressure pot, just asking for suggestions as to what other people use.

One or two of the hardware/tool stores that I frequent sell "paint pots" with a gauge on top, a lid seal, and sturdy clamps. . Is this a pressure pot ?

Another question I have relates to the use of pressure for casting as opposed to vacuum.

My intuition seems to be telling me that vacuum is what you need for casting as opposed to pressure. . Isn't vacuum the way to get bubbles out ?

I do understand the difference between pressure and vacuum and worked with both for many years in my career as an experimental physicist.

In spite of that, as I consider doing my own casting I would intuitively go for vacuum.

Happy to hear what others think.


If you are casting you want to use a pressure pot (paint pot modified ) itís the best way to get the air bubbles out of your resin and make a good bond with the wood if you are embedding wood the pressure shrinks the bubbles to microscopic size

Now for vacuum that is the best way to stabilize wood as it pulls air out and stabilizing resin in you can stabilize wood with a pressure pot if you have the right setup witch most people donít what I have heard it takes thousands of pounds of psi to achieve that hope this kinda helps if u have any questions feel free to ask Iím not a pro but I know my way around a little


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Old 11-02-2017, 10:16 AM   #14 (permalink)
 
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Mal, I think the dander of using a pressure pot is overblown (pun intended). Be careful and inspect it regularly. Iím no scientist but if it ruptured is it going to explode or simply expel the air? Itís not a bomb.
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Old 11-02-2017, 11:06 AM   #15 (permalink)
 
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Mal, I think the danger of using a pressure pot is overblown (pun intended). Be careful and inspect it regularly. Iím no scientist but if it ruptured is it going to explode or simply expel the air? Itís not a bomb.
Patrick ... thank you.

Well, I am not too worried about the danger/risks. I have quite a bit of experience with vessel that are lightly pressurized (50 PSI) and under vacuum.

However, kitchen quality pressure vessels have been known to exlode with quite serious consequences (partly due to the contents, I beleive).
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Old 11-02-2017, 12:03 PM   #16 (permalink)
 
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Oh yeah, pressure cookers. Totally different animal. Your golden. Youíll really enjoy casting.
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Old 11-02-2017, 12:58 PM   #17 (permalink)
 
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Mal there is a Horror Fright within a mile or so of the Grizzly showroom in Bellingham. When you go to get your mail across the line it is only about 20 minutes or so to go to Grizzly or HF for a wallet draining browse.

Princess Auto sell a paint pot equivalent to the one at HF for something around a hundred bucks when on sale.

When a pressure pot lets go it does't just leak air it explodes with enough force to kill or seriously injure you. Used within the makers pressure range they're safe but don't underestimate the energy stored in one if it is compromised.

Have fun but not a blast with your casting.
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Old 11-02-2017, 01:14 PM   #18 (permalink)
 
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Hi Curly,

Thank you for your post. I am aware of the HF and Grizzly in B'ham. . I can only speculate on both company's international marketing strategies in placing those stores close to the border. I am uncertain (from my online perambulations) whether either company has a store in the Seattle area.

However, I rarely go across the line. My sister has a rented mailbox in Blaine and she goes every 10 days or so, and that works for me to let her do it as she also has a Nexus pass and she buys her vehicle gas down there and groceries to save some $$.
I pay her well for her courier service !! . I also have to keep my package value within strict limits so that it does not present any problem for her when returning.

Thanks for the warning ... experience doesn't count if the vessel decides to explode, but I would take precautions, such as a strong vented box as a surround.

I have been looking for a pressure vessel of appropriate size at the Princess Auto store in Coquitlam but have not yet found one. I should try Langley.

If you know that PA markets a suitably sized pressure pot and can send me a URL from the PA online store I would appreciate. . Thanks.

I am not sure just how soon I would start casting ... I have so many things on the go ... and I am not sure WHAT I would be casting .... possibly buttons for starters. WoodChuckers in ON used to sell button blanks but not any more as far as I know. . I liked those.

I also have some thought of decorating brass tubes in some way and then casting them in clear resin.

I definitely won't be doing feathers !!!!

I don't suppose your use of "blast" above has any particularly sinister connotations with regard to the contemplated activity !!
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Old 11-02-2017, 01:26 PM   #19 (permalink)
 
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https://www.princessauto.com/en/deta...nk/A-p8006581e

A little more than I last remember but they do go on sale now and again.
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Old 11-02-2017, 01:31 PM   #20 (permalink)
 
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Thanks, Pete.

That one is 10 liters ... about 2.5 US gallons. Big enough, do you think ?

Haven't seen those in the local stores but I have only started this consideration.

Which brand of pot do you guys use ?
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