Thread: Dual injector problems AGAIN

Making certain your two plastics are exactly the same temperature is my guess as to a solution. No thermometer? Get one. This adventure requires very exacting plastic temps and guessing doesn't cut it. And don't pinch pennys when buying one or this could be a common issue. I have a digital with a stick that I use to stir the plastic and take temp reading all at once.

Personally I'd start working with a dual injector using a mold for a larger bait until I had a good handle on it.

I'd also turn the adapter so I was shooting a bait with a top and bottom, not two different colors of sides.

Would the infrared thermometers be alright or do I need to get a digital on a stick?CF

Infrared thermometers read surface temps nicely, but you want internal temperature, hence the digital on a stem. If you go digital, do not read the temp with the stick[probe] touching the bottom or the sides of the cooking vessel. Keep the tip of the stick in the middle of the plastic mass. This is especially so if you use a microwave. I got mine for under 20 bucks and it sure has eliminated a mess of wasted plastic.

And once you know for sure what your temps are, you should try to do the laminates at about 320 degrees. If both plastics are, say 350, your line will become muddy.

I use the the twin all the time with no problems. When you are just learning how to use it a thermometer is very important! The viscosity of the two colors is more important than temps though. Some colors and additives like pearls are thicker and need to be at a higher temp than the other color. Once you've done it a while you can just tell how the plastic flows off a knife if the two will laminate well.

Quit wasting time and plastic and get the thermometer whether it be digital and infrared! if infrared just stir while taking temps. I've never scorched any plastic and been through several drums of plastic.

Have any of You guys with the dual injectors ever had the by-pass issue with Your injectors before and had one color run up the other injector?CF

Its been a while since I had mine but it looks like you had air in the injector
If there is air in the injector and you push to inject the air will compress and when you let go it will pull plastic back into the injector the pink side may have had air in it
I'm no expert that's just my opinion
If it did bypass there has to be a bad seal on the side it pushed into

One color is hotter than the other is what the deal on the marble look. And also 1 color going up the blending block into the other is due to one color hotter than the other. Want another neat effect kinda spin the injector while shooting.