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100% sealed dispensing bottle

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Sal Ammoniac:

--- Quote from: gaminn on May 22, 2024, 05:07:21 pm ---I also store hazardous chemicals outside the place I live and when using it I'm cautious and limit my exposure to it. I use dichlormethane to bond cracked plastic parts so I'm using only several drops of it each time. From what I read, in past dichlormethane was used in paint strippers where the exposure must have been an orders of magnitude greater.

--- End quote ---

Exposure concerns are mainly for people exposed to the substances on a regular basis, for example workers in a factory that are exposed for an entire working day. Occasional exposure to most of these things, such as for limited hobby use, is not going to have the same effect as breathing something for hours every day. It's still wise to exercise reasonable caution when handling potentially hazardous substances.

tggzzz:

--- Quote from: gaminn on May 22, 2024, 05:07:21 pm ---From what I read, in past dichlormethane was used in paint strippers where the exposure must have been an orders of magnitude greater.

--- End quote ---

It was also the principal ingredient of "liquid sander", used to prepare old paint surfaces for coating with a new layer of paint.

I was most irritated when I found it was no longer available, since now I'll have to use "sugar soap" and sandpaper on external painted wood :(

EPAIII:
I don't know about your chemicals, but I use squeeze bottles like these in my shop.

<attachment is below>

The small bottle is a generic, saline nasal spray. OK, the one in the photo is not generic, but I found the generic ones had bottles that were just as good, if not better and they cost less. They can be either round or football shaped and the squirting top is removable with a moderate hand twist. I pop the tops off and pour out the saline solution then rinse well. I have used these for years and the tops seem to never wear out from assembly and disassembly.

For some uses I just keep the original orifice size and spray as needed. Sometimes I enlarge the original opening with a pin or small drill bit. If I want more liquid at a time I will drill out that original orifice with a 1/16" / 1.5mm drill bit and insert a leftover "straw" from an aerosol spray bottle (oil, WD-40, etc.) I always keep the "straws" when I throw the cans away; they can be used for many things. The "straw" can be cut to any length desired. The plastic used for the tops is somewhat elastic, so it forms a nice friction fit and seal as the hole size will be smaller than the drill bit used to enlarge the opening. The "straw" is small enough so there is no leakage if the bottle tips over and they can be left uncapped for an indefinite time period with little or no loss. And the "straw" can be pulled in or out as needed for more or less reach.

The larger bottle was purchased from McMaster. I gave up with other suppliers after trying several similar bottles and found them to leak when squeezed or tipped over. I have not been disappointed in anything I have purchased from McMaster. I have also added those spray can "straws" to this kind of bottle.

I have a third size of bottle, also from McMaster, that is between the two sizes shown in the photo. They are sold specifically as oil bottles. I almost always add the "straws" to them.

So far all three of these squeeze bottles have worked OK for every type of fluid I have filled them with. Of course, YMMV.

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