Have yet to open the tops on thin CA . 3ml syringes with long needles offer great control on using this D#%$ stuff.

I keep a small plastic bottle with a small capped-hole type cap (Acrylic paint bottles) full of acetone and when finished squirt the balance back into CA bottle, flush the needle and syringe interior a few times with the acetone, cap the needle, and pull out the plunger (it does not like the acetone fumes) and allow to air dry. When needle plugs stick it in the acetone for 10 minutes and your back in business.

I don't know the cost of replacement and /or the special long tips but syringes are about $.20 each and last a long time.