ranger77 Posted September 17, 2010 Report Share Posted September 17, 2010 I need some help with injecting my baits. I have a basstackle brush hog mold that keeps getting air in it. I have both sizes and keep getting air bubbles in the small circles on the side of the bait. This keeps the little wing from connecting to the bait. I am becoming really frustrated. I am using calhoun medium plastic. My molds are so hot i cant hold them and my plastic is even smoking a lot because i am getting it so hot. I have tried everything i know to do. Please help Quote Link to comment Share on other sites More sharing options...
Largehead Louie Posted September 17, 2010 Report Share Posted September 17, 2010 I need some help with injecting my baits. I have a basstackle brush hog mold that keeps getting air in it. I have both sizes and keep getting air bubbles in the small circles on the side of the bait. This keeps the little wing from connecting to the bait. I am becoming really frustrated. I am using calhoun medium plastic. My molds are so hot i cant hold them and my plastic is even smoking a lot because i am getting it so hot. I have tried everything i know to do. Please help Try injecting SLOWER. Also, are you using a lot of salt? Quote Link to comment Share on other sites More sharing options...
Frank Posted September 17, 2010 Report Share Posted September 17, 2010 I have this mold and what I do is maybe on the contrary to what you are doing. My plastic is about 310/320 not to hot and not smoking. I fill my injector all the way up and shoot at a medium to slow speed. With the twinjector I do the same but more of a medium pace with the plasic maybe a bit cooler 300/310. I get way more bubbles with hot plastic. If you dont have a temp gauge it is a real good idea. Another tip is on the injector make sure it is clean and the seal is good so you dont suck up air when you fill it. I some times get some plastic between the seal and tube, this causes it to suck air with means you will inject it into the cavity. I have a habit to watch the cup and make sure it fills up completely. There is alway a little air in there but it usually goes to the top. Another reason to not use all of the plastic in the injector. The last bit will have air. I have a two cavity but I started with a single. I also shoot this mold weekly to fill a standing order. So if I can help more just post the results. Hope this has helped Frank Quote Link to comment Share on other sites More sharing options...
JSC Posted September 17, 2010 Report Share Posted September 17, 2010 Just a quick word on getting "air pocket" ... Good advice has been given. and this is just a thought for You .. The Hotter the Plastisol the more "Contraction" You are going to get .. that extra little pressure you add at the end of an injection will some times help to fill in the contraction .. It sounds like its TO HOT and need a slower but steady injection ............. 2 Cents worth JSC Quote Link to comment Share on other sites More sharing options...
mark poulson Posted September 17, 2010 Report Share Posted September 17, 2010 (edited) Just a quick word on getting "air pocket" ... Good advice has been given. and this is just a thought for You .. The Hotter the Plastisol the more "Contraction" You are going to get .. that extra little pressure you add at the end of an injection will some times help to fill in the contraction .. It sounds like its TO HOT and need a slower but steady injection ............. 2 Cents worth JSC I wound up with air pockets from two things. First, the plastic wasn't hot enough. 360 degrees for me works best. Second, the vent holes were too big. My POP molds need vents that are only the diameter of a toothpick. Any more than that, and the hot plastic just goes right out of the bottom, leaving air bubbles. I have found that every mold has it's own quirks, depending on the size of the actual bait, and it's configuration. Edited September 17, 2010 by mark poulson Quote Link to comment Share on other sites More sharing options...
