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» Stats |
Members: 8,485
Threads: 13,893
Posts: 106,355
Top Poster: nova (1,787)
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| Welcome to our newest member, Ahopkins31 |
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August 4th, 2008
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TU Club Member
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Join Date: Jan 2007
Location: north
Posts: 44
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Air Bubbles in 2 piece POP......
I have made a few POP 2 piece with good results...however I am trying another master full round and I can't get rid of the bubbles...anybody got any tips on getting rid of these bubbles? I am not mixing hard to cause bubbles..I pour slow...It seems they generate from detail or the petrolium jelly, I am not sure...I tap and vibrate but they just don't go away......help..Thanks
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August 4th, 2008
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TU Club Member
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Join Date: Jan 2004
Location: canada
Posts: 1,787
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Re: Air Bubbles in 2 piece POP......
Sometimes you will get air leaking out from under the bait if its not seated well.
As pop dries it shrinks away from the bait. I pour my second layer not long after the first layer sets up and I don't use a heavy coating material. I simply use veg oil and let it soak in. I also don't coat the bait with the oil.
Another tip would be to not use as much water in the second pour. Use just enough to allow detail transfer. ( the coating not only stops the pop from sticking together but it also repels water and that can cause voids.)
www.novalures.com |
August 4th, 2008
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TU Club Member
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Join Date: Jan 2007
Location: north
Posts: 44
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Re: Air Bubbles in 2 piece POP......
Good info...thank you..I kind of suspected but wasn't sure..I will try your suggestions..especially veg oil, I like that...I will be posting some pics of my baits and what I caught at Clear Lake and The Delta soon but still working on getting them right...thanks for your help.
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August 4th, 2008
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TU Club Member
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Join Date: Jun 2008
Location: Indiana
Posts: 157
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Re: Air Bubbles in 2 piece POP......
hookfin,
nova is one of the POP masters on this site. I just started doing some 2 sided with durhams and one thing that I was tipped off to was basting the master with a coat of the pop or dwp before you pour your second layer. Since I have started doing that I have no more bubbles in the second half. Hope this helps.
Zbass
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August 4th, 2008
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TU Club Member
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Join Date: Jan 2007
Location: Indonesia
Posts: 1,725
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Re: Air Bubbles in 2 piece POP......
Zbass, I second your comments. Since reading this tip, my molds have improved dramatically, both PoP and RTV. I use a soft brush and work the PoP into all the corners and creases that can hold trapped air and wet the surface of the master.
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August 6th, 2008
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TU Club Member
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Join Date: Jan 2007
Location: north
Posts: 44
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Re: Air Bubbles in 2 piece POP......
I used all the tips....they made a big improvement. I do believe the air was trapped in detail and would not be drawn out until I poured the second half..The vegie oil is a big improvement! Thanks...  |
August 6th, 2008
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TU Club Member
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Join Date: Jan 2004
Location: canada
Posts: 1,787
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Re: Air Bubbles in 2 piece POP......
No problem; glad to help.
www.novalures.com |
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