I am in the middle of a thunder boat build just over 150 hrs in putting on the 1/6 skin used a 60 cc syringe to lay down the 30 min. epoxy sure did make it easy thought I would share this with you
I stopped using these after I found out they coat the rubber plunger with some kind of lubricant. I tried washing the rubber plunger but the grease was really stubborn. Probably some silicone grease. I now use these as grease gun to pack grease in the stuffing tube. Check yours to make sure the plunger is not lubricated.