Liberty Products 2-4oz Plastic Squeeze Bottles with 1.5 inch Stainless Steel Applicators

They worked well as a precise applicators of fluids to a targeted area. I used them to apply solvent to the glued battery in a MacBook Pro so I can replace the internal battery.

These are perfect for lubricating things where its a tight area. I put oil in them.

Perfect to help keep hair moisturized under sew in

The bottles meet well my expectations on quality at the price point, and came with black PVC caps. The needle top cover is called a 18G scabbard cover/seal, and made of some semi-flexible material of either neoprene or Sanoprene. It is designed to make an airtight seal around the blunt type needle. As stated by others, the cap or luer lock (needle part) does not use or rely on any gasket seals whatever so. (which I think is common for applicator bottles.) A simple water test with some normal squeezing pressure, showed potential leakage around the caps and LDPE bottles. An extra tight twisting force to the cap is needed here to prevent this. The sealing around the Luer lock hub were good, although the Luer lock barely needs no force at all to unscrew, and the seal can be broken. Now for some laymen tips and not necessary manufacture recommendations: Some plumbers telfon (PTFE) Tape can be applied, anti-clockwise on the threads of the LDPE bottle, to help leak proof this area, should a bottle not perform as expected. This could also potential help ease the mechanical stress at the cap and could avoid cracked caps, that I’ve seen elsewhere happening, with these type of bottles. The needle hub could be glued into place, should a more permanent fixture be preferred. A lower viscosity acrylate adhesive, would be an ideal choice, if a needle separates from the hub, and you decide to fix it. Professionals typically uses medical grade UV curing acrylates to maximize the strength and fast cure time, but it is really not wide available to normal people. Needle tips are though also meant to be more disposal, and your are better economically to get replacements. Why the manufacture yet seem to me not offers needle replacements, at time of writing, is a little bit of a bummer. Long contact with aggressive chemicals such as acetones, fuel additives and so called halogenated solvents, are usually NOT smooth sailing with these type of bottles, as they will degrade the plastics or glue joints. They are actually that not really meant to stand a long lifespan, so expect to need new replacements, soon or later. Lastly, go get some water resistant labels. Don’t rely on guessing the content every time, and never skip this step when storing liquids, that could pose any type of hazard.

Perfect little oil dispenser while working on my engine build. Love it.

Love these! I had a full can of lube that quit spraying so I bought these, put a hole in the can and emptied them into these for precision application to stuck hardware etc.

I really like these for oiling my fishing reels. Easy to control the flow to not over lube them.

The bottles leak very badly no matter how tightly you screw the top on. I was able to find o rings from a harbor freight kit that happened to fit nicely, so I was able to get them to seal airtight but these do not work well without them and did not come with any o-rings or seals of their own. 5/5 with o rings but losing two points since they didn't actually come with any.