Getting rid of bubbles

[JeffJ]

How do I get rid of bubbles when pouring? I am using a microwave and notice that I get alot of bubbles in my pours. Is there something I can do to prevent or am I do something wrong?

[Richard Prager]

How are you mixing your plastic?

For most plastics, all that is necessary for mixing prior to pouring is to rock the container back and forth. If you are vigorously shaking the container, you are creating bubbles before you even start.

Try heating a little bit slower. If you heat too fast, some plastics will froth up like a beer. If you give us more information it would be easier to help you.

[JDBaits]

On remelts I get loads of bubbles, to get rid of these heat your plastic up to 300 or so and just let the plastic sit the bubbles will get rid of themselves. While doing this I occasionally give it a short burst once in awhile to keep it up to temp. On virgin plastic I stir it gently until its up to temp once it gets to 300 or so you should be able to stir it a bit harder and not create bubbles.

[JeffJ]

I do mix the plastic up quit a bit before pouring by shaking the container but I dont see the buddles then. I am mixing with a knife with new plastic as it heats in the microwave as its getting hot and then I see the bubbles. I will try letting it sit a bite.

[Richard Prager]

What plastic are you using and how much are you trying to heat up at a time?

[Smallie]

If you are adding salt that has absorbed moisture (salt will absorb moisture from the humidity in the air) you will see bubbles form once you get above 212F.

[JeffJ]

I am using Calhouns plastic from del. I usually only pour with 4oz at a time. For this swimbait I am pouring I am not adding salt just the plastic, colors, glitter, and softener.

[Richard Prager]

Had a feeling that was what you were using. It has been my experience using Calhoun, to keep an eye on when it reaches the gel state. 20-30 second nukes from there. Stir in between blasts, but stir SLOWLY. Once it thins out and you still have some bubbles, nuke for 12-15 seconds. The plastic should be thin enough to allow you to stir with the bubbles rising to the top. Prior to pour do not shake vigorously but rock the container back and forth. make sure you keep your container closed tight at all times. Hope this helps.

[JeffJ]

Is the calhoun plastic known for that? I just got the new stuff Del is carrying but havent used it yet. So should I do more slow bursts to heat then long bursts? Yes I do keep my gallon jugs tight when not in use.,

[Richard Prager]

Yes it is. For 4 oz try 1:30 initially then 20-30 busts. The key to using calhoun successfully is slow