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General => General Discussion => Topic started by: toojayz on 01/11/14 14:34 UTC

Title: 3.5" 10 cavity carrot mold
Post by: toojayz on 01/11/14 14:34 UTC
Well, pulled the trigger this morning on the 10 cavity mols 2.5 gallons of plastic and lots of colors and glitter! My question is, approx how many ox of plastisol is needed to shoot this mold? Thanks in advance, Jim
Title: Re: 3.5" 10 cavity carrot mold
Post by: biglewers on 01/11/14 14:49 UTC
Mix up at least 5oz of plastic.  You are gonna want to keep the sprue filled.  Also hold pressure for at least 10 to 15 secs.  You are gonna love that mold.
Title: Re: 3.5" 10 cavity carrot mold
Post by: sim on 01/11/14 15:28 UTC
Mix up at least 5oz of plastic.  You are gonna want to keep the sprue filled.  Also hold pressure for at least 10 to 15 secs.  You are gonna love that mold.

yep -
Title: Re: 3.5" 10 cavity carrot mold
Post by: toojayz on 01/12/14 07:53 UTC
Thanks guy's! I love this place!
Title: Re: 3.5" 10 cavity carrot mold
Post by: BareKnuckleJigs on 01/12/14 08:04 UTC
Get Your 4 oz. injector FULL to shoot that mold because it takes a good bit of plastic to fill it.  You'll learn how much the mold takes as You work with it.
Title: Re: 3.5" 10 cavity carrot mold
Post by: toojayz on 01/12/14 08:08 UTC
Get Your 4 oz. injector FULL to shoot that mold because it takes a good bit of plastic to fill it.  You'll learn how much the mold takes as You work with it.

Thanks man, this is going to make my life a lot easier!
Title: Re: 3.5" 10 cavity carrot mold
Post by: pjmcla on 01/12/14 12:44 UTC
I shoot this mold a little on the warm side -  350 +/-.  It requires a lot of plastic as it is 10 cavities of a fair sized bait.  This mold wants to be "hugged" longer than any mold I own or you will get dents in some baits.  Biglewers was spot on on the injecting, not a real strong pressure or you risk flashing.  Just firm enough to feel the mold draw down the plastic.  Good clamping is required on this mold.   Once you get to playing good, I can see a laminate plate in your future  :D.
Title: Re: 3.5" 10 cavity carrot mold
Post by: toojayz on 01/12/14 18:50 UTC
I shoot this mold a little on the warm side -  350 +/-.  It requires a lot of plastic as it is 10 cavities of a fair sized bait.  This mold wants to be "hugged" longer than any mold I own or you will get dents in some baits.  Biglewers was spot on on the injecting, not a real strong pressure or you risk flashing.  Just firm enough to feel the mold draw down the plastic.  Good clamping is required on this mold.   Once you get to playing good, I can see a laminate plate in your future  :D.
Thanks for the reply! When you say "hugged" do you mean to keep pressure on the mold with the injector a little longer? Thanks Jim
Title: Re: 3.5" 10 cavity carrot mold
Post by: sim on 01/12/14 19:39 UTC
Thanks for the reply! When you say "hugged" do you mean to keep pressure on the mold with the injector a little longer? Thanks Jim

Thats the way I took it - I mean, I do hug my fishing stuff (and partner) as often as possible*, but I am pretty sure he means to keep the pressure on the top of the injector a bit longer than normal.

I'm still fairly new to this as well, but I followed the suggestions from this thread and no more dented carrots!


*I do not suggest hugging hot plastic - ever - just - don't.
Title: Re: 3.5" 10 cavity carrot mold
Post by: toojayz on 01/12/14 19:42 UTC
Thanks again for all the replies! :D
Title: Re: 3.5" 10 cavity carrot mold
Post by: MO QWACK on 01/12/14 20:27 UTC
I hug all my molds... my wife thinks its odd but I call them my pretties and named them. The one I don't like the most I names Denny  :D
Title: Re: 3.5" 10 cavity carrot mold
Post by: Botanophilia on 01/12/14 20:35 UTC
I cradle them, hold them close, and utter "my preciousss".  If I don't do this step before shooting plastic on a given day, nothing goes right.
Title: Re: 3.5" 10 cavity carrot mold
Post by: pjmcla on 01/12/14 21:34 UTC
Yes.  My definition of hugging is -   Assuring that the injector is solidly attached to the sprue opening and apply a light, but solid, downward pressure on the plunger after the initial mold injection.  You can actually feel the mold take in more plastic for a bit.  You do not ever want to have enough pressure at any time during a injecting cycle where plastic will squirt from the injector or the injector / mold juncture.   As MO Quack might say " Be one with the Injector ".
Has anyone talked to you about purging ; or burping; your injector before injecting a mold?
This is important with this mold as well to avoid air bubbles in the baits.   

P.S. -  Don't hug Mo-Quack either.   :-\
Title: Re: 3.5" 10 cavity carrot mold
Post by: sim on 01/12/14 23:29 UTC
I cradle them, hold them close, and utter "my preciousss".  If I don't do this step before shooting plastic on a given day, nothing goes right.

I think you've had that mold quite long enough -
Title: Re: 3.5" 10 cavity carrot mold
Post by: sim on 01/12/14 23:30 UTC
Yes.  My definition of hugging is -   Assuring that the injector is solidly attached to the sprue opening and apply a light, but solid, downward pressure on the plunger after the initial mold injection.  You can actually feel the mold take in more plastic for a bit.  You do not ever want to have enough pressure at any time during a injecting cycle where plastic will squirt from the injector or the injector / mold juncture.   As MO Quack might say " Be one with the Injector ".
Has anyone talked to you about purging ; or burping; your injector before injecting a mold?
This is important with this mold as well to avoid air bubbles in the baits.   

P.S. -  Don't hug Mo-Quack either.   :-\

One thing you don't want to hear when you inject plastic is a burping sound....
Title: Re: 3.5" 10 cavity carrot mold
Post by: toojayz on 01/13/14 06:24 UTC
Yes.  My definition of hugging is -   Assuring that the injector is solidly attached to the sprue opening and apply a light, but solid, downward pressure on the plunger after the initial mold injection.  You can actually feel the mold take in more plastic for a bit.  You do not ever want to have enough pressure at any time during a injecting cycle where plastic will squirt from the injector or the injector / mold juncture.   As MO Quack might say " Be one with the Injector ".
Has anyone talked to you about purging ; or burping; your injector before injecting a mold?
This is important with this mold as well to avoid air bubbles in the baits.   

P.S. -  Don't hug Mo-Quack either.   :-\

Thank you sir! What a great response! I can't wait to start practicing and with all this help, I'm sure it will go more smoothly.