Have you tried leaving some air between the flavoring and the rubber piece? It works for me.
TFA Pineapple killing my syringes.
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Nice suggestion. The next question I wanted to ask was is it the rubber piece that is expanding or the tube itself.
I always thought it was the rubber piece of the plunger. They also tend to affect the dropper hole in dropper bottles, making the hole smaller. That this is polyethylene makes me a bit concerned...it shouldn't be doing anything. I sometimes have to push a big needle through it to open it up again.
That said, if I wash the syringe out right after mixing with some vodka, the problem seems to resolve itself. If there is black being formed then the rubber is breaking down, and I don't see that. I think it is just swelling, causing the plunger to stick, but that is just what I experience with these flavors.
Are Esters present in the Flavoring? Is that what is Causing the Problems with some Polymers?
I tried CAP Golden pineapple in place of the TFA a while back and continued on with it... hard to tell if the TFA effected my syringes tho since I keep a glass of hot water next to me and suck the water in and out of the syringe the moment I empty the flavoring from it. I also leave the airspace Mx mentioned.
Of course since I don't drip, and so use various tanks, I really don't want to use any flavoring that attacks the soft parts anyway...
Of course since I don't drip, and so use various tanks, I really don't want to use any flavoring that attacks the soft parts anyway...
Got these from china: Glass Sampler Luer Lock Tip Syringe 1CC Injector 1ml | eBay
I bought 2 @ 5 bucks each but they took a month to get here.
They're all I use for flavorings now, just rinse in a measuring cup (with hot water), between flavors.
I bought 2 @ 5 bucks each but they took a month to get here.
They're all I use for flavorings now, just rinse in a measuring cup (with hot water), between flavors.
Esters are pretty much ubiquitous in many types of flavors. Hard to avoid esters. I don't know what causes these problems, mainly because I don't know exactly what is in flavors, and I don't know how all polymers interact with them. Very much unknown, at least in the time I can give to it.
Thanks for the Reply Kurt.
I remember doing some Uneducated Research on Esters when the Polycarbonate Cracking issue 1st surfaced. And how Esters are Formed. Unfortunately, My Knowledge of Chemistry is Limited to a Few College course I took Decades ago.
And as you posted Years Ago, Not Knowing what Chemical Compounds are present is kinda doing "Bucket Chemistry".
It is Confounding that Clearos and Tank Bodies are still being made from Polycarbonates instead of something like Polypropylene. But the forming of Threads and the Highly Transparent look are factors.
Thank again for you reply and I hope things are Going Well with all your e-liquid Policy Projects.
Thanks, zoiDman! I also do not know why polycarbonate is still being use, but you are right, probably aesthetics and ability to have threading. Probably someone will come up with something better. HDPE would be good, but it will not be clear. I've never cracked a tank with one, but I am not fond of the plastic taste, which is actually plasticizers (BPA, and others). I have a DCT tank made of milled lucite with is heartier and no taste, and no evidence I have found with etching. Has beautiful green, white and turquoise marbling and is translucent.
I am leery of inhaling anything that can etch plastic. Even though the two might be totally unrelated, it just doesn't sit will with me.
Cutting threads in LDPE/HDPE or Polypropylene isn't very doable in the type of Thread Heights seen on Most Tank Bodies or Clearos.
Injection Molding small height threads is Possible. Due to the Shrinkage of the Material just prior to Stripping the Part from the Die Set. But it can be Tricky.
I am with you in being Wary of using e-Liquids that can Degrade "Plastics". And this is something that is Not Considered when Many People think about Regulations.
That is, as it is Now, a Vendor can Package their e-liquids in Any Type of Container they Choose. There are No Requirements for e-Liquids being Stored/Used in Any Type of "Plastic".
So if I decided to, I could sell e-Liquids in Non-1st-Use Polystyrene Containers. Either thru Ignorance or because I found a Good Deal on Polystyrene Bottles on e-Bay.
Yikes, polystyrene! I wonder how many juices will arrive to the customer as sticky blobs of melted goo? Point well taken.
Don't get me Wrong.
I think VERY Few people would Knowingly package e-liquids in a Container that was made up of Some Amount of Polystyrene.
But in this case, Ignorance is NOT Bliss.
Most Vendors are Not Monomer Experts. And have to Trust what a Supplier tells them about the Chemical Composition of the Containers that they will be Using. And that they are from 100% Pure, 1st Use Feedstock.
Having Standards to Ensure that what goes Into a Container are "Safe" and that there is Accountability/Traceability is Needed. But Doesn't there also Need to be Standards on Packaging?
e-liquid Regulations to me are a Double Edged Sword. On one side I see a Manipulation of a Market to Benefit a Select group of Players. But on the Other Side I see the Underlying Structures that Improves and Ensures Overall Product Safety for the Entire Market.
I think these are very good considerations. I wonder if there have been any polycarbonate bottles cracking from holding certain flavors. The majority of my bottles are LDPE, or I assume they are because they are cloudy/translucent and easy to squeeze. I think a few are HDPE, since they are much stiffer, and less translucent. The ones that are possibly polycarbonate are very clear plastic, like convenience store water bottles. But I don't really know if they actually are poly-carb. Do you?
So with those, I wonder if there have been breaches/cracks, which might have been just considered "bad bottle" rather than "bad flavor for that bottle material".
I think a PDPE or HDPE tank could be designed well. I have seen some small production ones, but they never really caught on because people like the look amd feel of clear glass, and poly-carb does that. Not a fan of vaping plasticizers, however, regardless of cracking issues.
I also think the child-proof cap needs to be improved. My LDPE bottles with them use a smaller mouth and dropper end that fits over the mouth with a lip, and these will often leak if stored on their side in a warm environment. May be child proof, but if the bottle is covered with high-nic liquid anyway, that's a problem. I plan to talk to "my people" about this. I think it is worth a discussion, anyway.
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The Vast Majority of Bottled Water Bottles are made from Polyethylene Terephthalate (PET)
Polyethylene terephthalate - Wikipedia, the free encyclopedia
And for their intended purpose, they are a Very Good Choice.
As a Choice for a "Squeeze" type bottle, not so great. Because PET does not have the Elastic Properties that a LDPE has. PET also has a somewhat Low Fatigue Strength. It is susceptible to Failure after moderate Bending or Flexing.
To me, much of the Problem comes down to Many OEM not following a Fundamental Rule of Manufacturing. Form Follows Function.
Completely Transparent Clearos or Tank Bodies are Very Nice to Look at. But if what is to be put into them Degrades the Clearo or Tank Body material, a product designer is not doing their Job Correctly. Or attitudes about Marketing or Sales are Wrong.
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I agree with you about Child-Resistant Container could be Improved and Standardized.
I'm currently working with a Manufacture of Child-Resistance Containers. The term "Child Proof" is Never used. Because there is No Such thing as Child Proof that is Also Adult Openable.
Once again, this is a Area where FDA Regulations will have to come into play. Because Child-Resistant Standards can Vary Widely depending on the Contents of the Container.
Working to a Statistical Model of 70% of 5 Years Olds (or less) should Not be Able to Open a Child-Resistant Container in under 3 Minutes may be too Lacked.
Where as working to 80% of 7 Years Olds (or less) should Not be Able to Open a Child-Resistant Container in under 5 Minutes may be Overly Restrictive.
Someone will have to make the Determination as to what Standard is used. And the Lawyers will have to Sign Off on it. Because Child-Resistant Containers are more about Legal CYA than anything.
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It is nice Discussing much of this with you Kurt. Because once you start going down the Rabbit Hole of Standards and Regulations. people start to see how Complex and Involved things get. And that one Area, like Product Packaging, that may sound Relatively Simple turns out to be Very Involved standard-wise.
But this is Nothing I need to tell you.
Polyethylene terephthalate - Wikipedia, the free encyclopedia
And for their intended purpose, they are a Very Good Choice.
As a Choice for a "Squeeze" type bottle, not so great. Because PET does not have the Elastic Properties that a LDPE has. PET also has a somewhat Low Fatigue Strength. It is susceptible to Failure after moderate Bending or Flexing.
To me, much of the Problem comes down to Many OEM not following a Fundamental Rule of Manufacturing. Form Follows Function.
Completely Transparent Clearos or Tank Bodies are Very Nice to Look at. But if what is to be put into them Degrades the Clearo or Tank Body material, a product designer is not doing their Job Correctly. Or attitudes about Marketing or Sales are Wrong.
---
I agree with you about Child-Resistant Container could be Improved and Standardized.
I'm currently working with a Manufacture of Child-Resistance Containers. The term "Child Proof" is Never used. Because there is No Such thing as Child Proof that is Also Adult Openable.
Once again, this is a Area where FDA Regulations will have to come into play. Because Child-Resistant Standards can Vary Widely depending on the Contents of the Container.
Working to a Statistical Model of 70% of 5 Years Olds (or less) should Not be Able to Open a Child-Resistant Container in under 3 Minutes may be too Lacked.
Where as working to 80% of 7 Years Olds (or less) should Not be Able to Open a Child-Resistant Container in under 5 Minutes may be Overly Restrictive.
Someone will have to make the Determination as to what Standard is used. And the Lawyers will have to Sign Off on it. Because Child-Resistant Containers are more about Legal CYA than anything.
---
It is nice Discussing much of this with you Kurt. Because once you start going down the Rabbit Hole of Standards and Regulations. people start to see how Complex and Involved things get. And that one Area, like Product Packaging, that may sound Relatively Simple turns out to be Very Involved standard-wise.
But this is Nothing I need to tell you.
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