Custom Baits - Forum
General => General Discussion => Topic started by: HawgPours on 07/19/12 18:45 UTC
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Has anybody had problems with bubbles in the sides of their big foot toads. Starts at the jaw area and runs back to the butt for me. Its a thin line of bubbles and air pockets. The more i use the molds the worse its getting. Tried letting them cool, extra clamps, backing off on the clamps, cooler plastic, hotter plastic. Nothng is working and i have 200 frogs to do by saturday afternoon. :o :o
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Make sure to hold pressure on the injector after you inject and be sure to keep the mold topped off
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Ya i did that also. Finally I blocked the vent holes with hotplastic right after i injected each one. No more bubbles. Tried with out and bubbles returned. I think the side vents are too big and as the plastic starts to cool it sucks in air. This is just like if the spru is not topped off and you get the hollow or bubbly nose. Shot 21 frogs with out a glich now.
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Hey Hawg,
"Necessity is the mother of invention." Good call.
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Curious that it just started. Are you using small 6" clamps? How old are they. I noticed my first 2 clamps I purchased no longer hold like they use to. They actually loosened up and I started having flashing issues on my baits. Not saying that's your situation, but if it's not clamped firmly, it could make the vents bigger and lead to your bubble problems. Clamp them on a mold and see if they give.
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In addition to clamping - You may already be doing these but:
1. Purge your injector of air bubbles prior to injecting. For some reason, on some molds this is more of a necessity.
2. Try shooting the plastic cooler closer to 320 versus 350.
I have noticed for myself that when I shoot cooler I have less problems with air pockets, voids, ect. Especially with molds that have bellies (swim shads, toads, ect)