Marc Arena Posted June 19, 2012 Report Share Posted June 19, 2012 Hi, Having difficulty getting outer (colored) layer of plastisol to bond to the head when making large tubes. The heads are pre-made (clear) and often sit around for days/weeks prior to being put back on the rod for a final few coats of whichever color scheme I'm making. Problem is I don't get a solid bond....can essentially peel off the outer layer after it cools, leaving the head virtually unaffected in its original state. Is there some sort of spray on primer I can apply to the heads shortly before I apply the colored layers that will create a solid bond between clear head and colored outer layers? Thank you Marc Quote Link to comment Share on other sites More sharing options...
nova Posted June 19, 2012 Report Share Posted June 19, 2012 The only bonding agent I know of is heat. The layers have to be before the item cools off too much for the best bonding. www.novalures.com Quote Link to comment Share on other sites More sharing options...
toadfrog Posted June 19, 2012 Report Share Posted June 19, 2012 I have not tried it yet but you might try wiping the bond area with acetone just before you shot the secondary color . Mihgt be some type of residue inhibiting bond. Quote Link to comment Share on other sites More sharing options...
Marc Arena Posted July 10, 2012 Author Report Share Posted July 10, 2012 Was hoping maybe a fresh set of eyes might see this. Any other ideas or info is appreciated. Thank you Marc Quote Link to comment Share on other sites More sharing options...
Painter1 Posted July 11, 2012 Report Share Posted July 11, 2012 I think heat is the answer, also. I have used my heat gun and also warmed the section of a mold with a mini-torch where the bond will happen. I think it was one of Frank's videos where he shows how to heat a blade up, set both sides of a bait against the heated metal and then join them while still gooey. Same principal. Quote Link to comment Share on other sites More sharing options...
powerworm Posted July 11, 2012 Report Share Posted July 11, 2012 i take it you are dipping the final colors? if so wipe the baits with alcohol to remove the oily residue they will gather. then dip them in the outer color as hot as you can get it without scorching it it is not a cure all but will possibly make a better bond also they will bond better if they arent smooth but have some kind of texture to them since you leave them untouched for so long. 1 Quote Link to comment Share on other sites More sharing options...
Marc Arena Posted July 11, 2012 Author Report Share Posted July 11, 2012 Thanks fellas Is there some type of solvent spray that will remove the oils from the surface instead of wiping each head? I'm going to try to scuff the heads by using an angle grinder with the appropriate wheel. Perhaps the hot plastic will be able to fuse with the miniscule tears and cuts. I'm playing with cyanoacrylite glues as well as solvents that might attack the surface layer of the cured plastisol, softening it and possibly making it more apt to fuse with the fresh hot plastisol. Quote Link to comment Share on other sites More sharing options...
smallmouthaholic Posted July 11, 2012 Report Share Posted July 11, 2012 Hi, Having difficulty getting outer (colored) layer of plastisol to bond to the head when making large tubes. The heads are pre-made (clear) and often sit around for days/weeks prior to being put back on the rod for a final few coats of whichever color scheme I'm making. Why don't you dip the 2nd color while the tubes are on the rods and still warm from the initial color? Quote Link to comment Share on other sites More sharing options...
Marc Arena Posted July 11, 2012 Author Report Share Posted July 11, 2012 I pre-make the heads hundreds at a time. I need to do it this way to meet production needs and to allow for easy custom color manufacturing Quote Link to comment Share on other sites More sharing options...
carolinamike Posted July 11, 2012 Report Share Posted July 11, 2012 (edited) 90% rubbing alchohol should help you out a lot. It will remove any oil or plastisizer on the outside of the bait and make for a better bond, it's also a cheap way to go. Edited July 11, 2012 by carolinamike Quote Link to comment Share on other sites More sharing options...
Bass4Me Posted July 28, 2012 Report Share Posted July 28, 2012 90% rubbing alchohol should help you out a lot. It will remove any oil or plastisizer on the outside of the bait and make for a better bond, it's also a cheap way to go. I think the alchohol will work, but I do not see a way to apply it with out having to wipe each tube. Wiping removes the oils on the the surface of the tubes. *NOTE The Alchohol will evaporate from each bait pretty fast. Try these 2 experiments to determine which works best: 1) Use the alchohol on a lint free wrag and wipe down a few tubes and let dry. Wear plastic gloves! The alchohol will dry your hands out. 2) Get a spray bottle and fill with the 90% alchohol. Then spray a few of the tubes and let dry. Next - Compare the tubes and see if just spraying removed the oils or did it take the actual wiping to remove the oils? If just spraying works then you have saved many hours of wiping off oils. Option 2 / If just spraying works - Try this even faster method. Items needed: plastic gloves Very large bowl, Size depends on how many tubes you want to de-oil at the same time. 90% alchohol (enough to fill half the bowl) large mixing spoon or something to mix tubes a little bit and then to remove them. news paper or plastic to cover table. LINT FREE towels..... or DRYING RACK to put tubes - Get lint on your plastic tubes and you'll be mad as heck trying to get it back off. Fill bowl half way with Alchohol and the add tubes, stir/mix tubes and then remove, put them on drying rack or set on lint free towels to dry. Quote Link to comment Share on other sites More sharing options...
