2 Shot Molding

By TVP
Published: January 27th, 2012

I'm looking for a good book or resource on 2-shot molding. Speficially on interaction/bonding/sealing between the shots and tests to prove the strength of the bond in different environmental scenarios.

Thanks in advance for the help!

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Now that was a really healthy

Submitted by arog on May 22, 2012 - 12:57am.

Now that was a really healthy dialogue right there. Gets your blood pumping really fast and strong. Thanks a lot for sharing this with us. allergies talking

usually if you can't blend

Submitted by bill4012 on February 22, 2012 - 7:45pm.

usually if you can't blend them in a molding machine you won't get a chemical bond in two shot. SOLUTION? look for mechanical bonding (undercuts, through holes etc.)

Bill, Are you saying mix the

Submitted by Anonymous on February 21, 2012 - 5:06am.

Bill,

Are you saying mix the pellets together and mold them, and if they delaminate then they won't bond?

Thanks!

RULE OF THUMB: If you can mix

Submitted by bill4012 on February 4, 2012 - 12:19pm.

RULE OF THUMB:
If you can mix it together and it doesn't separate you can use it for two color. IF you can't 'alloy' it, you need to design some mechanical undercuts.

Worse case is an adhesive overcoat on the first shot.