lure_learning Posted July 9, 2013 Report Share Posted July 9, 2013 I have a small pressurized container that I am using to assist me in pouring baits. I am only pressurizing it with a couple lbs. of air. After about a half hour of pouring, I am getting micro bubbles. One thing I did notice is some sort of condensation is building on the inside of the lid. I have a filter that removes any water before the air passes into the regulator. I wonder if the stabilizer is causing the condensation and when it drips into the plastic it forms these bubbles. Anyone have any insight? Thanks You! Quote Link to comment Share on other sites More sharing options...
bluetickhound Posted July 10, 2013 Report Share Posted July 10, 2013 Are you using salt in your baits? I ask this because I shot (thank goodness I just spell checked that.... I'd never live that typo down!!) some senko style sticks last week that "sweated" on me... Granted, I make my baits in a garage in Atlanta Georgia (or Hot-lanta, as we call it here....) in pretty high humidity so that contributes I'm sure but as the baits cured up overnight I noticed the next day beads of sweat that were all over all the worms... Against my better judgement I tasted a bit of it and it was pure salt water... The lid of my Presto pot was also coated with condensation.... Quote Link to comment Share on other sites More sharing options...
bluetickhound Posted July 10, 2013 Report Share Posted July 10, 2013 Just thinking out loud here but have you tried increasing the pressure slightly as the pot empties? Quote Link to comment Share on other sites More sharing options...
lure_learning Posted July 10, 2013 Author Report Share Posted July 10, 2013 I'm not using any salt. I have to do more testing I guess to figure out just whats happening. Thanks Quote Link to comment Share on other sites More sharing options...
lure_learning Posted July 11, 2013 Author Report Share Posted July 11, 2013 I did another test and this time I kept wiping the condensation off... Same result :-( Quote Link to comment Share on other sites More sharing options...
Baitjunkys Posted July 11, 2013 Report Share Posted July 11, 2013 Most inexpensive dryers aren't gonna remove all moisture. Especially if its real humid. Quote Link to comment Share on other sites More sharing options...
lure_learning Posted July 11, 2013 Author Report Share Posted July 11, 2013 I work in a basement so there is a bit of humidity but I have a dehumidifier working constantly. Here is a link to the filter I have: http://www.coleparmer.com/Product/Mini_Coalescing_Air_Filter_0_3_micron_coalescing_filter_Max_49_SCFM_Max_Pressure_150_PSIG_1_4_NPT_F_connection/EW-75300-77?referred_id=5576&sku=7530077 Quote Link to comment Share on other sites More sharing options...
carolinamike Posted July 11, 2013 Report Share Posted July 11, 2013 You have not mentioned what the actual temperature of the plastic is. If you are using a closed system then you can expect an oily liquid to be at the top of the lid. How are you stirring your plastic? If you are stirring your plastic while your system is still under pressure then exppect bubbles. Using the one I built I make a few shots, take the pressure off, let the plastic stir, and then put the pressure back on. It also could have something to do with the speed you are stirring. Quote Link to comment Share on other sites More sharing options...
lure_learning Posted July 12, 2013 Author Report Share Posted July 12, 2013 The plastic temps I have tested were 335 and 345. I am not stirring... No glitter and no salt. Tested again tonight. This time I heated the raw plastic in the pot rather than the microwave. After about 45 minutes it was up to temp and unfortunately, I achieved the same result. Previously, I was heating in micro and pouring into a fairly cold pot and then turning it on. The bubbles are extremely small! It's not the plastic because when i heat in the microwave the baits are perfectly clear. Frustrated Quote Link to comment Share on other sites More sharing options...
lure_learning Posted July 12, 2013 Author Report Share Posted July 12, 2013 One last note... I originally said after 30 minutes or so I start to get these bubbles but it seems they exist from the get go. There seem to be more as time goes on though. I appreciate your help guys. One last note... I originally said after 30 minutes or so I start to get these bubbles but it seems they exist from the get go. There seem to be more as time goes on though. I appreciate your help guys. Quote Link to comment Share on other sites More sharing options...
Shane D Posted July 13, 2013 Report Share Posted July 13, 2013 Are you sure the plastic does not have any moisture in it? If there is no salt, or stirring then that's all I can think of unless your heat stabilizer in the plastic is burning off and causing it to drip or something. Quote Link to comment Share on other sites More sharing options...
carolinamike Posted July 14, 2013 Report Share Posted July 14, 2013 Instead of heating in a microwave can you heat it in your pressurized system? Of course do not heat it under pressure. Sometimes microwave heating can be the cause of micro bubbles and then putting them under air pressure could cause these bubbles to expand. Does your microwave have a heat setting? If so all plastisols do better when heated on the lowest setting, some are more forgiving than others but a good rule to follow when using a microwave is low and slow. Also I would try a temperature of around 355 degrees, this is not too hot for the plastisol and it should make it thin enough for the bubbles to rise to the top. Hope this helps. Quote Link to comment Share on other sites More sharing options...
