making your own plastics - couple questions

[crankbait2009]

im starting another hobby and this time I'm getting involved in making my own plastics.  Have a couple questions about techniques. 

 

Some plastics have a different colored tail. how do you create that effect? I see molds where you'd make the tails separately, but how do you attach it to the worm itself? When don'e, it looks like it's all one piece, naturally. I was searching on YouTube for videos, but I guess I'm not putting the right title in the search field.

 

also, if you want a crystal clear plastic, which has a translucent green appearance.  how would you go about achieving this?

[WRB]

Hand pour is just melted plastic poured into an open cavity mold. Hand injected isn’t different from high production multi cavity molds it’s a hand injected melted plastic forced under pressure into a single cavity mold  to achieve fine or thin details.

The highest quality hand pours are Roboworms robotically poured into open cavities. 
Tom

[Alex from GA]

I personally use a dipping dye, JJs Magic for the tail.  

[crankbait2009]

I guess I should have explained the process that I will be using.  I have two aluminum molds that will be filled via the injector.  

 

I thought about the dipping too, certainly a lot easier.

[Jig Man]

I do that a lot especially with baby brush hogs.  I shoot the tail color into all of the cavities of the mold.  I open the mold and with an exacto knife the bodies away from the tail leaving the tails in the molds.  Then I close the molds and shoot the body color.  The heat seals them together.  
 

You don’t have to rush but you waist time getting done.

 

As for the green you mentioned, I would try a sample say 2 oz plastisol get it properly stirred and melted choose the green you want then put 1 and only 1 drop of colorant in the plastisol and stir it well.  If that isn’t enough add a 2nd drop.

 

When you get it the way you want it write down your recipe so it will be repeatable.