Luredervs Posted February 27, 2023 Report Share Posted February 27, 2023 Hi , i bought the 4 cavity do-it senko mold and came seem to get 4 good parts without getting denting , pretty sure its not air because when i touch that area i just sinks in … i do heat the mold up to where I have to pick it up with gloves and i top off the sprue as it sinks , and I also dont open the mold for about 3 to 4 mons after injection.. was gonna try angling the mold different so it flows better … any suggestions would be great , Thanks in advance Quote Link to comment Share on other sites More sharing options...
alsworms Posted February 27, 2023 Report Share Posted February 27, 2023 I'm sure the injection guys will chime in, but the few I had I would inject slower and at higher temps. Hope this helps :-) 1 Quote Link to comment Share on other sites More sharing options...
Jig Man Posted February 27, 2023 Report Share Posted February 27, 2023 Try als method and keep pressure on the injector for a few seconds after the mold is “full”. 1 Quote Link to comment Share on other sites More sharing options...
McLuvin175 Posted February 27, 2023 Report Share Posted February 27, 2023 Try not heating the molds. Inject and hold pressure for 10-15 seconds after full. Top off injection port with molten plastic. De-mold much sooner, before dent forms. 1-2 minutes. If necessary lay baits out in a water bath to relax and finish cooling. Then hang or layout as usual. 1 Quote Link to comment Share on other sites More sharing options...
Les Young Posted February 28, 2023 Report Share Posted February 28, 2023 (edited) I inject that mold at a decent speed & hold pressure for about 5 seconds, top of sprue & wait 3 minutes to demold then throw in water. The only time i've had denting with it was when i got the temp a little to hot. Edited February 28, 2023 by Les Young 1 Quote Link to comment Share on other sites More sharing options...
Luredervs Posted February 28, 2023 Author Report Share Posted February 28, 2023 Thanks everyone , I will try these ideas and give an update … Thanks again Quote Link to comment Share on other sites More sharing options...
hpssports Posted February 28, 2023 Report Share Posted February 28, 2023 Try shooting as low temperature as possible & hold at least a 10 second pressure. We usually shoot our stick baits around 285 degrees. Quote Link to comment Share on other sites More sharing options...
Luredervs Posted March 1, 2023 Author Report Share Posted March 1, 2023 On 2/27/2023 at 7:16 PM, Les Young said: I inject that mold at a decent speed & hold pressure for about 5 seconds, top of sprue & wait 3 minutes to demold then throw in water. The only time i've had denting with it was when i got the temp a little to hot. hi everyone , i figured out how to get it to work !!! Instead of sucking it up with the injector I took off the injector nozzle and poured it directly in … thanks for taking time out with all your advice 2 Quote Link to comment Share on other sites More sharing options...
Les Young Posted March 2, 2023 Report Share Posted March 2, 2023 11 hours ago, Luredervs said: hi everyone , i figured out how to get it to work !!! Instead of sucking it up with the injector I took off the injector nozzle and poured it directly in … thanks for taking time out with all your advice Just be very careful pouring it in so you don't get burnt. Sucking it up & turning the injector over on an angle & purging the air out of the injector is very easy to do so that's what i do each time & it works great. 1 Quote Link to comment Share on other sites More sharing options...
DaveMc1 Posted March 4, 2023 Report Share Posted March 4, 2023 On 3/1/2023 at 8:45 AM, Luredervs said: hi everyone , i figured out how to get it to work !!! Instead of sucking it up with the injector I took off the injector nozzle and poured it directly in … thanks for taking time out with all your advice That has nothing to do with denting. Plastic expands when its heated, contracts when it cools, as the cavity cools it needs to draw in more plastic from the runner to prevent dents (why you see it suck down after injecting it). When the gate or runner freezes off (solidifies) before the cavity solidifies it has no way to pull in plastic and sucks in on itself. In other words it is a flaw in the mold design itself, it's always been an issue with that mold, from the day they released it. Whatever you are doing other than how you fill the injector (it's always baffled me why its been promoted to fill that way, seems like an accident waiting to happen) is helping mitigate the dents. 1 Quote Link to comment Share on other sites More sharing options...
mark poulson Posted March 4, 2023 Report Share Posted March 4, 2023 My do-it essentials 5" senko mold doesn't dent. I shoot at 325+-, and hold pressure for a five count. Quote Link to comment Share on other sites More sharing options...
